ML14149A273

LaSalle County Station, Unit 1 - Post-Outage 90-Day Inservice Inspection (ISI) Summary Report

ML14149A273
Person / Time
Site:	LaSalle
Issue date:	05/29/2014
From:	Karaba P J Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RA14-018
Download: ML14149A273 (66)

Text

10 CFR 50.55a(g)RA14-018 May 29, 2014 United States Nuclear Regulatory Commission Attention:

Document Control Desk Washington, D.C. 20555 LaSalle County Station, Unit 1 Facility Operating License No. NPF-1 1 NRC Docket No. 50-373

Subject:

Post-Outage 90-Day Inservice Inspection (ISI) Summary Report

Reference:

Milton H. Richter (ComEd) letter to Dr. Thomas E. Murley (NRC),"Structural Margin Evaluation for Reactor Pressure Vessel Head Studs," dated October 3, 1991 Susan R. Landahl (Exelon) letter RA06-062 to the Nuclear Regulatory Commission, "In Service Inspection (ISI) Intervals," dated September 22, 2006 Letter from Christopher Gratton, Sr., U.S. Nuclear Regulatory Commission to Michael Pacilio, Exelon Nuclear, "LaSalle County Station Units 1 and 2 - Issuance of Amendments Re: Measurement Uncertainty Recapture Power Uprate," dated September 16, 2010 Enclosed is the Exelon Generation Company, LLC (EGC) LaSalle County Station Unit 1 Post-Outage 90-Day (ISI) Summary Report, submitted in accordance with 10 CFR 50.55a, "Codes and Standards," and the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code Section XI, Article IWA-6200, Paragraph IWA-6230.

The enclosed Post-Outage 90-Day ISI Summary Report is for examinations, repair/replacement activities, and Containment Inservice Inspection (CISI) performed between the end of LaSalle County Station Unit 1 fourteenth refueling outage on March 7, 2012, through the end of the fifteenth refueling outage. This refueling outage started on February 10, 2014, and ended on March 1, 2014. This refueling outage was the second outage scheduled for the Second Inspection Period of the Third Inservice Inspection Interval, and the Second Containment Inservice Inspection Interval, effective from October 1, 2010, through September 30, 2014, for LaSalle County Station Unit 1.

May 29, 2014 U.S. Nuclear Regulatory Commission Page 2 LaSalle County Station Unit 1 is owned and operated by EGC, whose address is:

200 Exelon Way Kennett Square, PA 19348 The referenced license amendment regarding Measurement Uncertainty Recapture (MUR) Power Uprate (PU) raised the licensed rated thermal power from 3489 MWt to 3546 MWt.To the best of our knowledge and belief, the statements made in this report are correct, and the examinations and corrective measures, as applicable, conform to the rules of the ASME Boiler and Pressure Vessel Code,Section XI.

Should you have any questions concerning this letter, please contact Mr. Guy V. Ford Jr., Regulatory Assurance Manager, at (815) 415-2800.

Respectfully, Peter J. Karaba Site Vice President LaSalle County Station Attachment cc:NRC Senior Resident Inspector - LaSalle County Station Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21 s t Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01 /01 /84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable INTRODUCTION The Inservice Inspection (ISI) Summary Report addresses examinations, repair/replacement activities, and Containment Inservice Inspections (CISI) performed between the end of the previous refuel outage, (L1 R14) March 7, 2012, through the end of the current refuel outage (L1 R15). This refuel outage was the fifteenth for LaSalle County Station Unit 1. It started February 10, 2014 and ended March 1, 2014. This refueling outage was the second outage scheduled for the Second Inspection Period of the Third Inservice Inspection Interval, and the Second Containment Inservice Inspection Interval, effective from October 1, 2010, through September 30, 2014, for LaSalle County Station Unit 1. The Third Inservice Inspection Interval, and the Second Containment Inservice Inspection Interval are divided into three successive inspection periods as determined by calendar years of plant service within the inspection interval.

Identified below are the period dates for the inspection intervals as defined by Inspection Program B. In accordance with IWA

-2430 (d)(3), the Inspection Periods specified below may be decreased or extended by as much as one year to enable inspections to coincide with LaSalle County Station's refuel outages.

Unit 1, Period 1 (October 1, 2007 through September 30, 2010)

Unit 1, Period 2 (October 1, 2010 through September 30, 2014)

Unit 1, Period 3 (October 1, 2014 through September 30, 2017)

Augmented Inservice Inspection (AISI) examinations, ISI and CISI, and Preservice Inspections (PSI) were completed prior to and during the refuel outage as required by the Code of Federal Regulations, Technical Requirements Manual, ASME Boiler and Pressure Vessel Code,Section XI, 2001 Edition through the 2003 Addenda, and the applicable requirements of the Performance Demonstration Initiative (PDI).

Personnel from General Electric Hitachi Nuclear Inspection Services and Exelon Nondestructive Examination Services (NDES) performed the Non

-DestructiveExaminations (NDE), Magnetic Particle (MT), Liquid Dye Penetrant (PT), and manual and/or automated Ultrasonic (UT) techniques that were used during these inspections.

All Intergranular Stress Corrosion Cracking (IGSCC)examinations were completed by personnel qualified for the detection and discrimination of IGSCC Cracking in accordance with the PDI. NDES provided necessary resolution of technical problems, reviewed all ISI personnel qualifications, and all visual, surface, and volumetric examination results.

1 Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21st Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable Visual examinations of reactor vessel internals, component supports, and piping pressure tests were performed by General Electric Hitachi Nuclear Inspection Services personnel, Exelon Generation Company, LLC (EGC) employees of the LaSalle County Station Programs Engineering Group and NDES personnel. These individuals were appropriately certified as ASME Code Section XI Visual Examiners in accordance with EGC's written practice. An underwater camera was used for the visual inspection of the reactor vessel internals. The camera was proven capable of resolving 0.001 " and 0.0005" stainless steel wires and .044" characters while underwater and, in the same lighting conditions found during the actual inspection.

The services of an Authorized Nuclear Inservice Concrete Inspector (ANIC) were provided by The Hartford Steam Boiler Inspection and Insurance Company of Connecticut, 2443 Warrenville Road, Suite 500, Lisle, IL 60532.

Mr. Adam M. Prine, ANTI, State of Illinois #2146 IC, and Mr. Mike Haydon, ANII, State of Illinois #1721 reviewed written Nondestructive Examination procedures, personnel qualifications, instrument certifications, material certifications and ASME Code Section XI examination results. Mr. Prine also certified Owner's Reports of Repair or Replacement (Form NIS-2), and The Owner's Data Report for Inservice Inspection (Form NIS-1).

11.SCOPE OF INSPECTIONS The ISI Summary Report is provided with tables that consolidate the extent and results of inspections performed between the end of the previous refuel outage (L1 R14), March 7, 2012 through the end of the refuel outage (L1 R15). An explanation of all abbreviations used is in Attachment 3 of the Summary Report.

Table A provides a listing of all completed ASME Code Section XI examinations for this refuel outage with the exception of component support examinations and pressure testing, which are addressed separately. Table A is divided by ASME Code Category with a description of the items examined, including the examination types, the examination results and where applicable, the percentage of examinations completed.

Table B provides a listing of all AISI. These are not ASME Code Section XI requirements, but are additional examination area requirements, increased frequency requirements, or combinations of these requirements, which are requested by the Nuclear Regulatory Commission (NRC). These other requirements have been deemed prudent in view of EGC and industry experience. Table B also gives a description of the items examined as well as the examination types, and examination results. Table B includes the following categories:

BWRVIP-75-These examinations are of austenitic stainless steel piping and other susceptible materials for the detection of IGSCC.

REACTOR VESSEL INTERNALS AISI - These examinations include inspection of reactor internal components required by the NRC such as core spray spargers and piping.These have been adopted by EGC through its commitment to the Boiling Water 2

Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21St Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable Reactor Vessel and Internals Project (BWRVIP). Other examinations, such as the steam separator, were deemed prudent based on industry experience.

MISCELLANEOUS AISI - Pursuant to LaSalle County Station's commitment to the NRC (reference letter), the AISI examinations included an augmented "End-Shot" UT examination of 100% (68 total) of the reactor pressure vessel closure studs. The "End Shot" UT examination was completed using procedures, calibration standards, and personnel that met all applicable requirements of the ASME Code,Section XI, 2001 Edition through the 2003 Addenda, Appendix VIII, Supplement 8.

Table C provides a listing of all completed ASME Code Section XI Class 1 and 2 component support examinations and Snubber Functional Tests for this outage. Table C gives the support number, examination type, and examination and test results. ASME Code Class divides Table C.

Table D provides a listing of pressure testing of ASME Code Section XI Class 1 and 2 piping and components completed during the period between the end of the L1 R14 refuel outage and the end of the L1 R15 refuel outage. ASME Code Class 1 components and piping were examined using the VT-2 method during the system leakage test conducted at 1033 psig prior to reactor start-up, which is within the nominal operating pressure range of the reactor pressure vessel associated with 100% rated reactor power. Pressure testing will be ongoing throughout the remainder of the Second Inspection Period.

Table E is a listing of ASME Code Section XI Class 1 and 2 repair/replacements completed since the previous refuel outage and those completed during the fourteenth refuel outage of Unit 1, which are in accordance with ASME Code Section XI, Article IWA-4000. These include the work order number that served to implement the applicable activity and a short description. The documentation packages are on file at LaSalle County Station. Each activity has been certified on the Owner's Report of Repair or Replacement, which will serve as documentation of these repair/replacements.

The name of each major component or appurtenance inspected during the fourteenth refuel outage is listed in column # 1 on Form NIS-1 (Attachment 1). This includes the reactor pressure vessel and the Class 1 piping system. A detailed list of components or appurtenances inspected appears in the abstracts listed as items 13, 14, and 15 on Form NIS-1. The descriptions including size, capacity, material, location, and drawings to aid in identification of the components or appurtenances have been previously submitted, including the N-5 ASME Code Data Reports. This information was not included in the ISI Summary Report. These documents are on file at LaSalle County Station. This also applies to the PSI and ISI Summary Reports.

III.

SUMMARY

OF RESULTS AND CORRECTIVE ACTIONS The ASME Code Section XI ISI results obtained during this refuel outage were compared with the Preservice and Inservice results. The following is a summary of the results and corrective actions taken:

3 Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21st Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable 1.

Recordable indications were detected in ASME Code Section XI components and other non-code components, during augmented examinations. These indications are further discussed below or in the applicable tables. All indications detected in ASME Code Section XI components were evaluated against the applicable acceptance standards.

2.

An augmented visual examination of the steam dryer is completed during each refuel outage. The steam dryer contains indications that were recorded during previous examinations. Areas where historically indications were identified include the lifting eye bracket welds, upper dryer bank vertical welds, upper support ring, tie rods, and dryer bank panels. Specific inspections as recommended by BWRVIP-139-A were performed and no new indications were identified.

Previously identified indications at the third bracket on the lifting assembly at 315° were examined. Issue Report #1621647 was generated to document the condition of the bracket.As noted in previous outages, Tie Rod 16-90 protrudes from the end of the top of the bank, and has broken tack welds. Issue Report #1621648 was generated to document the condition of the tie rod.

Previously identified indications were noted at the bottom end of Bank C hood vertical welds V04a-90 and V04c-90. Issue Report #1621645 was generated to document the condition of the hood.

Previously identified indications noted on the upper support ring at various locations around the circumference of the ring were examined. Issue Reports #1621653 and

1. 1621708 were generated to document the condition of the upper support ring.

The above noted indications were evaluated as acceptable as-is with no repair required in accordance with EC#396888.

These examination results have been documented on the General Electric Hitachi Nuclear Inspection Services examination data sheets.

3.

An augmented visual examination of the steam separator is completed each refuel outage.Previously identified wear noted on the shroud head bolt indexing window and pin locators were examined. Indications Report #1621611 was generated to document the condition of the windows and pins.

4 Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21St Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable The above noted indications were evaluated as acceptable as-is with no repair required in accordance with EC#396888.

These examination results have been documented on the General Electric Hitachi Nuclear Inspection Services examination data sheets.

4.Jet Pumps Five Jet Pump Auxiliary Wedges were examined in response previous wear and industry Operating Experience and no new minor wear was identified. Issue Report #1623248 was generated to document the condition of the Jet Pump Auxiliary Wedges.

Indications were noted on fourteen of the twenty jet pump main wedges examined. The wedges were examined in response to industry Operating Experience. No new main wedge wear was noted. Indications were noted on fifteen of the twenty jet pump main wedge rods examined. The rods were examined in response to industry Operating Experience. New rod wear was noted on one of the rods. Issue Reports #1622487,#1622467, #1622497, and #1622499 were generated to document the condition of the jet pump main wedges and rods.

Existing cracks at the RS-9 location on jet pump risers 1

/2, 3/4, 5/

6, 9/10, and 11/12 were examined, and there was no change in the condition of the cracks. The remaining five RS-9 locations were examined, and no new cracks were identified at the RS-9 location. Issue Report

1. 1622476 was generated to document the condition of the RS-9 welds.The RS-9 indications were evaluated as acceptable as-is with no repair required in accordance with calculation L-003707 and EC#397179.Twenty jet pump Slip Joint Clamps were examined in response to industry Operating Experience and vendor recommendations, and new minor wear was identified on the clamp installed on Jet Pumps 12. Previous wear on the Slip Joint Clamps installed on jet pumps 7, 13, 14 and 19 was unchanged from previous outages. Issue Report

1. 1622481 was generated to document the wear on the Slip Joint Clamps. The Slip Joint Clamp on jet pump 10 was not making contact at the middle vane location as required by the vendor re-inspection criteria. Issue Report #1623275 was generated to document the lack of contact on jet pump 10, and this condition was evaluated as acceptable-as-is with no repair for at least two cycles in accordance with EC#397184.

Except as noted, the above jet pump indications were evaluated as acceptable as-is with no repair required in accordance with EC#396888.

Ten RB-2a,b,c,d welds, 3 RS-2 welds, 2 RS-6 welds, 2 RS-7 welds, and 5 IN-2 welds were examined and no indications were identified.

Three jet pump beam locations, BB-1, BB-2, and BB-3, were ultrasonically examined on thirteen jet pumps beams and no relevant indications were noted.

These examination results have been documented in the General Electric Hitachi Nuclear Inspection Services examination data sheets and ultrasonic report.

5 Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGO), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21St Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01 /01 /84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable 5.

Piping, Spargers, and Brackets Visual examinations of the required core spray piping and selected sparger welds were performed and no indications were identified. Six core spray sparger bracket welds were examined and one new indication was identified on the bracket at 225°. Issue Report#1623306 was generated to document the condition of the sparger bracket. The indication was evaluated as acceptable as-is in accordance with EC#397177.

These examination results have been documented in the General Electric Hitachi Nuclear Inspection Services examination data sheets.

6.

All accessible areas of core shroud weld H4 was ultrasonically examined. On the upper side of the weld, 89.8% of the weld length was examined, and 3.6% of the examined weld length was flawed. On the lower side of the weld, 100% of the weld length was examined, and 2.6% of the examined weld length was flawed.

The indications were evaluated as acceptable as-is for four years in accordance with calculation L-003216 and EC#397181. Issue Report #1628110 was generated to document the condition of the core shroud horizontal weld H4.

The examination results have been documented on the General Electric Hitachi Nuclear Inspection Services ultrasonic report.

7.Attachment Welds Minor wear observed on the top of the steam dryer support lug at 185° was identified previously and inspection in this outage observed that the wear was consistent with the previous results, including the existence of a piece of rolled metal on the top corner side furthest from the 180° guide rod. The rolled metal has been evaluated for its potential impact to become a lost part and concluded that the piece was acceptable as-is with no repair required in accordance with EC #369559. Issue Report #1622580 was generated to document the condition of the support lug.

These examination results have been documented on the General Electric Hitachi Nuclear Inspection Services examination data sheets.

8.

During the last outage, minor wear was observed on the feedwater sparger end bracket top surfaces and the bolt heads at the 5° bracket, the 116° bracket, the 235° bracket, and the 245° bracket. In the current outage, these four locations were examined, and there was no change in the wear noted in the previous inspections. Issue Report

1. 1623279 was generated to document the condition of the brackets, and the noted indications were evaluated as acceptable as-is with no repair required in accordance with EC # 396888.

6 Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21st Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable 9.ASME Code Section XI Piping & Component Support Examinations Piping and component supports were inspected (7 total) during this refuel outage as part of the original scope of the ISI examinations. These were distributed between ASME Code Section XI Class 1 and 2/D+ supports as follows:ASME Code Class 1 - 3 supports.ASME Code Class 2/D+ -4 supports.

No conditions unacceptable for return to service were detected during the original examinations and no additional examinations were required.

7 Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21St Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable LASALLE COUNTY STATION UNIT I FIFTEENTH REFUEL OUTAGE ASME CODE SECTION XI

SUMMARY

REPORT Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21st Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable TABLE OF CONTENTS I.INTRODUCTION II.SCOPE OF INSPECTIONS Table A - ASME Code Section XI Examinations Table B - Augmented Inservice Inspections AISI Table C - ASME Code Section XI Component Support Examinations Table D - ASME Code Section XI Pressure Testing Table E - Class 1 & 2 Repair

/Replacements III.

SUMMARY

OF RESULTS, EVALUATIONS, AND CORRECTIVE ACTIONS IV.ATTACHMENTS 1.NIS-1 Form 2.NIS-2 Forms 3.Abbreviations Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21st Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable TABLE A ASME CODE SECTION XI ISI INSPECTIONS ASME CATEGORY B-A 50% COMPLETE ITEM #DESCRIPTION ITEMEXAM TYPERESULT GEL-1006-AJ B 1.21UTNRI GEL-1006-CD B 1.22UTNRI GEL-1006-CA B 1.22UTNRI GEL-1006-CB B1.22UTNRI GEL-1006-CC B1.22UTNRI GEL-1006-DA B 1.22UTNRI GEL-1006-DB B 1.22UTNRI GEL-1006-DC B1.22UTNRI GEL-1006-DD B1.22UTNRI GEL-1006-DE B 1.22UTNRI GEL-1006-CE B1.22UTNRI GEL-1006-CF B 1.22UTNRI GEL-1006-CG B 1.22UTNRI GEL-1006-DF B 1.22UTNRI GEL-1006-DG B 1.22UTNRI ASME CATEGORY B-D 75% COMPLETE ITEM#DESCRIPTION ITEMEXAM TYPERESULT LCS-1-N2BB3.90UTNRI 1-NIR-2BB3.100UTNRI ASME CATEGORY B-K 73% COMPLETE ITEM #DESCRIPTION ITEMEXAM TYPERESULT RH40-1006CB 10.20MTNRI RH53-1002C B1020MT3/16" INDICATION, ACCEPTABLE RH53-1550X B10.20MTNRI RH53-1551X B10.20MTNRI ASME CATEGORY C-C 72%COMPLETE ITEM #DESCRIPTION ITEMEXAM TYPERESULT LP28-1036CC3.20MTNRI LP02-1052XC3.20MTNRI RH02-1003V C3.20MTNRI I.2.3.4.5.6.7.8.9.10.11.12.13.14.15.1.2.1.2.3.4.

Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21St Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable ASME CATEGORY R-A 74% COMPLETE ITEM #DESCRIPTION ITEM EXAM TYPERESULT I.2.3.4.5.6.7.8.9.10.FW-1001-68R1.11 FW-1002-53R1.11 FW-1002-63R1.11 FW-1001-71A R1.11 FW-1001-81A 81.11FW-1001-89A R1.11 FW-1001-20R1.11 FW-1002-20R1.1 I HP-1001-02R1.20 HP-1001-32R I.20 HP-1001-3781.11 HP-1001-40R1.11 LP-1001-02R1.20 LP-1001-29R1.11 LP-1001-30R1.11 MS-1001-12R1.20 MS-1001-15R1.20 MS-1001-24R1.20 MS-1002-16R1.20 MS-1003-03R1.20 MS-1003-26R1.20 MS-1004-03R I.20 MS-1004-09R I.20 MS-1051-18R1.20 MS-1052-20R1.20 MS-1053-1881.20 MS-1053-26R1.20 MS-1054-2181.20 MS-1054-26R1.20 RH-1001-02R1.13 RH-1014-22R1.13 RH-1031-43R1.20 RH-1077-18R1.13 RI-1001-15R1.20 RI-1001-16R1.20 RI-1001-24R1.20 RR-1001-2181.20HP-1006-15A R1.20 HP-1006-16R1.20 HP-1006-17R1.20 UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTEMBEDDED FLAW ACCEPTABLE UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI UTNRI PSI UTNRI PSI UTNRI PSI UTNRI Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21 st Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable TABLE B AUGMENTED ISI INSPECTIONS AISI CATEGORY BWRVIP-75 IGSCC ITEM #ITEM DESCRIPTIONEXAM TYPERESULTRR-1001-14AUTRR-1001-17UTRR- 1006-07UTRR- 1006-08UTRR- 1006-09UTRR-1009-01UTRR- 1009-02UT AISI CATEGORY VESSEL INTERNALS ITEM #ITEM DESCRIPTIONEXAM TYPE RESULT NRI NRI NRI NRI NRI NRI NRI 1.2.3.4.5.6.7.8.9.10.STEAM DRYERVT- I STEAM SEPARATORVT-I CORE SPRAY PIPINGEVT-1 CORE SPRAY SPARGERSVT-1 CORE SPRAY SPARGER BRACKETSVT-I JET PUMP ASSY.UT/EVT-1/VT-1/VT- 3 SURVEILLANCE CAPSULEVT-3 DRYER SUPPORT LUGVT-3 FEEDWATER SPARGERVT-INT-3 BRACKETS CORE SHROUD UT RI, SEE REPORT PAGE 4, BWRVIP-139 RI, SEE REPORT PAGE 4 NRI, BWRVIP-18 SEE REPORT PAGE 6 NRI. BWRVIP- 18 SEE REPORT PAGE 6 RI, BWRVIP- 18 SEE REPORT PAGE 6RI, SEE REPORT PAGE 5, BWRVIP-41 NRI, BWRVIP-86 WEAR, SEE REPORT PAGE 6 WEAR, SEE REPORT PAGE 6 RI; BWRVIP-76, SEE REPORT PAGE 5 AISI CATEGORY MISC.

ITEM #ITEM DESCRIPTIONEXAM TYPE RESULT 1.RPV STUDS (1-68)UTNRI, SEE REPORT PAGE 3 Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21St Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01 /01 /84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable TABLE C ASME CODE SECTION XI COMPONENT & SUPPORT EXAMINATIONS CATEGORY F-A 26% COMPLETE ASME CLASS 1 ITEM #DESCRIPTION ITEMEXAM TYPERESULTS FW02-1012V F1.10VT-3NRI (SUCCESSIVE EXAMINATION)

FW02-10555F1.10VT-3NRI (SUCCESSIVE EXAMINATION)

FW02-1147SF1.10VT-3NRI (SUCCESSIVE EXAMINATION)

FW02-1150SF1.10VT-3NRI FW02-1170SF1.10VT-3NRI FW02-1175X F1.10VT-3NRI (SUCCESSIVE EXAMINATION)

MS14-1043R F1.10VT-3NRI (SUCCESSIVE EXAMINATION)

RH04-1505CF1.10VT-3NRI RROO-1061X F1.10VT-3NRI (SUCCESSIVE EXAMINATION)

RR00-1068V F1.10VT-3NRI (SUCCESSIVE EXAMINATION)

ASME CLASS 2 ITEM#DESCRIPTION ITEMEXAM TYPERESULTS 11MS01-1023CF1.20VT-3NRI 12.MSO1-1352XF1.20VT-3NRI 13.MS28-1014XFI.20VT-3NRI 14.RH02-1007VF1.20VT-3NRI 1.2.3.4.5.6.7.8.9.10.

Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21s' Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable TABLE D ASME CODE SECTION XI PRESSURE TESTING ITEM #DESCRIPTION ITEMEXAM TYPERESULT 1.1-CM-03C7.10VT-2NRI 2.1-CM-05C7.10VT-2NRI 3.1-CM-15C7.10VT-2NRI 4.1-CM-16C7.10VT-2NRI 5.1-CM-17C7.10VT-2NRI 6.1-FC-09C7.10VT-2NRI 7.1-FC-10C7.10VT-2NRI 8.1-HG-01C7.10VT-2NRI 91-HG-06C7.10VT-2NRI 10.1-HG-08C7.10VT-2NRI H.1-HP-01C7.10VT-2NRI 12.1-RCPBB15.10VT-2NRI 13.1-RH-07C7.10VT-2NRI 14.1-RH-08C7.10VT-2NRI 15.1-RR-01C7.10VT-2NRI 16.1-RR-02C7.10VT-2NRI 17.1-RR-04C7.10VT-2NRI 18.1-RR-05C7.10VT-2NRI 19.1-RR-06C7.10VT-2NRI 20.1-RR-08C7.10VT-2NRI 21.1-SA-01C7.10VT-2NRI 22.1-VG-01C7.10VT-2NRI 23.1-VP-01C7.10VT-2NRI 24.1-VP-02C7.10VT-2NRI 25.1-WR-01C7.10VT-2NRI Attachment Post-Outage 90-Day ISI Summary Report Exelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 LaSalle County Station, 2601 North 21st Road Marseilles, IL 61341-9757 Unit 1, Commercial Service Date 01/01/84, National Board # 21086 Owner's Certificate of Authorization is Not Applicable TABLE E REPAIR/REPLACEMENT ACTIVITIES CLASS-1 WORK PACKAGE #

1. 2.1425179 3.1425180 4.1425181 5.1425182 6.1425183 7.1425184 8.1546168 9.1560556 10.1609723 11.1630909 12.1630913 13.1630914 14.1630920 15.1638641 16.1638643 17.1638644 18.1638645 19.1638646 20.1638647 21.1638648 22.1638651 23.1638652 24.1638654 25.1638655 26.1638656 27.1638657 28.1638658 29.1638659 30.1638660 31.1638661 32.1638662 33.1638663 DESCRIPTION Replace MS SRV "C" Mid-Cycle Replace MS SRV "C" Replace MS SRV "E" Replace MS SRV "H" Replace MS SRV "L" Replace MS SRV "R" Replace MS SRV "U" Replace Explosive Valve after Firing Replace Piping Flange Bolting Materials Replace Control Rod Drive & Cap Screws Replace Snubber RTO 1-1093S Replace Snubber RROO-1009S Replace Snubber RROO-1008S Replace Snubber MS00-1009S Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws Replace Control Rod Drive & Cap Screws CLASS-2 WORK PACKAGE #

1.1492443 2.1630935 3.1635336 DESCRIPTION Replace Pump Gland Plate Replace Snubber RH13-1156S Replace HP Piping Elbow ATTACHMENT 3 ABBREVIATIONS ATTACHMENT 3 ABBREVIATIONS ADADDENDA ANIIAUTHORIZED NUCLEAR INSERVICE INSPECTOR AISIAUGMENTED INSERVICE INSPECTIONS ASSYASSEMBLY ATTATTACHMENT ASMEAMERICAN SOCIETY OF MECHANICAL ENGINEERS AUTO UTAUTOMATED ULTRASONIC TEST BOMBILL OF MATERIAL BWRBOILING WATER REACTOR BWROGBOILING WATER REACTOR OWNER'S GROUP BWRVIPBOILING WATER REACTOR VESSEL AND INTERNALS PROJECT CHRONTRACKING SYSTEM FOR ENGINEERING EVALUATIONS CIDCATALOG IDENTIFICATION CMCONTAINMENT MONITERING CISICONTAINMENT INSERVICE INSPECTION CRCOMPONENT RELIEF REQUEST CRDCONTROL ROD DRIVE ECENGINEERING CHANGE EDEDITION EGCEXELON GENERATION COMPANY ESEXTRACTION STEAM EVTENHANCED VISUAL TEST FCFUEL POOL COOLING FTFUNCTIONAL TEST FWFEEDWATER GEHGENERAL ELECTRIC HITACHI HGCONTAINMENT COMBUSTIBLE GAS CONTROL HPHIGH PRESSURE CORE SPRAY HSB-CTHARTFORD STEAM BOILER INSPECTION & INSURANCE CO. OF CONNECTICUT ATTACHMENT 3 (CONT'D.)

ABBREVIATIONS HT#ID/OD IGSCC IL IN IR IRM ISI LIR13 LIR14 LLC LPRM LP MIL MC MS MSIV MT MWt N/A NB NDE NDES NDIT NIR NR NRC NRI HEAT #INSIDE DIAMETER/OUTSIDE DIAMETER INTERGRANULAR STRESS CORROSION CRACKING ILLINOIS INSTRUMENT NITROGEN ISSUE REPORT INTERMEDIATE RANGE MONITOR INSERVICE INSPECTION LASALLE UNIT ONE REFUEL OUTAGE THIRTEEN LASALLE UNIT ONE REFUEL OUTAGE FOURTEEN LIMITED LIABILITY COMPANY LOCAL POWER RANGE MONITOR LOW PRESSURE CORE SPRAY MILLIMETER CLEAN CONDENSATE STORAGE MAIN STEAM MAIN STEAM ISOLATION VALVE MAGNETIC PARTICLE TEST MEGAWATT THERMAL NOT APPLICABLE NUCLEAR BOILER NON-DESTRUCTIVE EVALUATION NONDESTRUCTIVE EXAMINATION SERVICES NUCLEAR DESIGN INFORMATION TRANSMITTAL NOZZLE INNER RADIUS NUCLEAR INSTRUMENTATION NUCLEAR REGULATORY COMMISSION NON-RECORDABLE/NON-RELEVANT INDICATION ATTACHMENT 3 (CONT'D.)

ABBREVIATIONS PA PC PCE PDI PG PO PR PSI PSIG PT PTE PWHT QRI RC-PB RD RE RF RH RI RIN RPV RR RT SA SAR SC SDC SEAG SIL PENNSYLVANIA PRIMARY CONTAINMENT PART CLASSIFICATION EVALUATION PERFORMANCE DEMONSTRATION INITIATIVE PAGE PURCHASE ORDER PRESSURE TESTING RELIEF REQUEST PRESERVICE INSPECTION POUNDS PER SQUARE INCH GAGE LIQUID PENETRANT TEST PART TECHNICAL EVALUATION POST WELD HEAT TREATMENT QUALITY RECEIPT INSPECTION REACTOR COOLANT PRESSURE BOUNDARY ROD DRIVE REACTOR BUILDING EQUIPMENT DRAINS REACTOR BUILDING FLOOR DRAINS RESIDUAL HEAT REMOVAL REACTOR CORE ISOLATION COOLING RECEIPT INSPECTION #

REACTOR PRESSURE VESSEL REACTOR RECIRCULATION REACTOR WATER CLEAN UP SERVICE AIR SAFETY ANALYSIS REPORT STANDBY LIQUID CONTROL SHUTDOWN COOLING SITE ENGINEERING ADMIN GROUP SERVICES INFORMATION LETTER SRM SRV STM UT VG VLV VP VQ VT WO WR ATTACHMENT 3 (CONT'D.)

ABBREVIATIONS SOURCE RANGE MONITOR SAFETY RELIEF VALVE STEAM ULTRASONIC TEST STANDBY GAS TREATMENT VALVE PRIMARY CONTAINMENT CHILLED WATER PRIMARY CONTAINMENT VENT AND PURGE VISUAL TEST WORK ORDER REACTOR BUILDING CLOSED COOLING WATER ATTACHMENT 1 NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTION FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As required by the Provisions of the ASME Code Rules 1.OwnerExelon Generation Company (EGC), LLC, 200 Exelon Way, Kennett Square, PA 19348 (Name and Address of Owner) 2.PlantLaSalle County Station, 2601 North 21st Road Marseilles, IL 61341-9757 (Name and Address of Owner)

3. Plant UnitOne 4.Owner Certificate of Authorization (if required)N/A 5. Commercial Service Date 01/01/84 6.National Board # for Unit 21086 7. Components Inspected Component or Manufacturer Manufacturer State or National Appurtenance Or Installer or Installer Province No.

Board No.Serial No.

Reactor Pressure Combustion 1 B 13-D003 B-24318 21086 Vessel Engineering Reactor Recirculation General Electric N/A N/A N/A Company Nuclear Boiler

& CM B.F.Shaw N/A N/A N/A Systems Residual Heat B.F. Shaw N/A N/A N/A Removal Feedwater&HG B.F. Shaw N/A N/A N/A Systems High Pressure Core B.F. Shaw N/A N/A N/A Spray Low Pressure Core B.F. Shaw N/A N/A N/A Spray Main Steam

&GE/B.F. Shaw N/A N/A N/A Extraction Steam RI & RT Systems B.F. Shaw N/A N/A N/A Control Rod Drive GE/B.F. Shaw N/A N/A N/A WR & VG Systems B.F. Shaw N/A N/A N/A Fuel Pool Cooling

&B.F. Shaw N/A N/A N/A VP Systems Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8'h in. x I 1 in., (2) information in items I through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-1 (Back) 8.Examination Dates:02/10/14to03/01/14 9.Inspection Period Identification :2nd Period - From 10

/01/10 to 09

/30/2014 10.Inspection Interval Identification :3°d Interval - From 10

/01/07 to 09

/30/2017 11.Applicable Edition of Section XI2001Addenda2003 12.Date/Revision of Inspection Plan:06/29/2011 Rev. 2 13.Abstract of Examination and Tests. Include a list of examinations and tests and a statement concerning status of work required for the Inspection Plan. See Summary Report for item 13.

14.Abstract of Results of Examinations and Tests. See Summary Report for item 14.

15.Abstract of Corrective Measures. See Summary Report for item 15.

We certify that a) the statement made in this report are correct, b) the examinations and tests meet Inspection Plan as required by the ASME Code,Section XI, and c) corrective measures taken conform to the ASME Code,Section XI.

Certificate of Authorization No. (if applicable)N/AExpiration DateN/A Date2014 SignedExelon Generation Company, LLC By Owner CERTIFICATE OF INSERVICE INSPECTION I, the under signed, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province ofIllinoisAnd employed byHSB Global Standards of Hartford, Connecticut Have inspected the components described in the Owner's Report during the period 02/10/2014To03/01/2014, and state that to the best of my knowledge and belief, the Owner has performed examinations and tests and taken corrective measures described in this Owner's Report in accordance with the Inspection Plan and as required by the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations, tests, and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions NB 13411 A.N.I, IL 2146 IC Inspector' s SignatureNational Board, State, Province, and Endorsements Date2014 ATTACHMENT 2 NIS-2 OWNERS REPORT OF REPAIR OR REPLACEMENT FORM NIS-2 OWNER'S REPORT OF REPAIRS OR REPLACEMENTS As Required by the Provisions of ASME Code Section XI1.OwnerExelon Generation Company (EGC) LLCDate4/25/2013 (Name)200 Exelon Way, Kenneth Square, PA., 19348Sheet1of2 Address 2.PlantLaSalle County Nuclear StationUnit1 Name 2601 N. 21" Rd. Marseilles 11. 61341W.O. 1635335 AddressRepair Organization, P.O. No., Job No., etc.3.Work Performed byMechanical MaintenanceType Code Symbol StampN/A (Name)Authorization No.N/A Mechanical MaintenanceExpiration DateN/A (Address)(b)Applicable Edition of Section XI Utilized for Repairs or Replacements - 2001 Ed., 2003 Ad , (c)Code Cases None4.Identification of System Main Steam (B21) Class 15.(a)Applicable Construction Code Sect Ill 19 71 Edition S72 Addenda, Code Cases 1567/17116.Identification of Components Repaired or Replaced, and Replacement Components Name of Name of Mfrs.Nat'l Other Year Corrected ASME Code Component Mfr.Ser.Bd.Identification Built Removed, or Stamped No.No.Installed (Yes or No) 1B21-F013C SRV Crosby N63790 N/A UTC#2681249*Removed N/A 0006 1 B21-F013C SRV Crosby N63790-05-N/A UTC# 2747287 Installed N/A 0003 Nut Assembly 1-Nova*N/A**Removed N/A 3/8x8 13 Nut Assembly 1-Nova Lot N/A UTC# 2927946 2012 Installed N/A 3/8x8 13#50365122 Description of Work: Class 1 Replacement of SRV Tests Conducted:

Hydrostatic I1 Pneumatic I__I Normal Operating Pressure IXI Other Visual Pressure 1004.3 psiTest Temp. N/A Deg. F 9.Remarks:* =Per N-5 Code Data Report on File at LaSalle Station.

CERTIFICATION OF COMPLIANCE We certify that the statements made in the report are correct and theseReplacementconforms to the rules of the ASME Code, Section Xl.(repair or replacement)

Type Code Symbol StampNONE 7.8.Certificate of Authorization No.

L' L.td5i^ _" Owner or Owner's Des N/A Expiration Date ISI Engineer Title Signed Date N/A June 10, 2013 CERTIFICATE OF INSERVICE INSPECTION1, The undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by The Hartford Steam Boiler Insp. & Ins. Co. of Connecticut have inspected the components described in this Owner's Report during the period L1 R14toL1 R15, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty , expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

CommissionsNB 13411 A N 1IL 2146 IC Inspector's SignatureNational Board, State, Province, and Endorsements FORM NIS-2 SUPPLEMENTAL SHEET 1.Exelon Generation Company (EGC) LLCSheet2of2 200 Exelon Way, Kenneth Square,Date4/25/2013 PA., 19348Unit12.Plant:LaSalle County Station 2601 N. 21st. Rd.

Marseilles, Illinois 61341 3.Work Performed by: Mechanical Maint.Type Code Symbol StampN/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address 4.Identification of System (MS) Main Steam Class 1 5a.Applicable Construction Code Sect. 111 71EditionS72Addenda 5b.Applicable Edition of Section XI utilized 2001 Edition 2003Addenda 6.Identification of Components Repaired or Replaced and Replacement Components.

W.O. # 1635335 P. O. No., W R No., etc.

Year Built Name of Component Name of Manufacturer Manufacturer Serial No.National Board No.Other Identification Repaired, Replaced or Replacement ASME Code Stamped (Yes or No)Stud, 1-3/8-8x9 N/A Removed NIA Stud, 1-3/8-8x9 (5)Ht.# Z855 UTC# 2750945 Installed Nova N/A 2006 N/A Nova N/A 2011 Stud, 1-3/8-8x9 (7)Ht. 3007989 UTC# 2883420 Installed N/A N/A N/A N/AIIIIN/A FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 210t Rd. Marseilles, II. 61341 Address Date 3/26/2014 Sheet1of1 Unit01 W.O. # 1425179 Repair Organization, P.O. No., Job No.,etc.

3.4.5.6.7.8.9.Work Performed byMechanical Maintenance Name Mechanical Maintenance Address Identification of System B21 (Main Steam)(a)Applicable Construction Code 1971 Edition S72 Addenda,NoneCode Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity-2001 Edition 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A Authorization No.N/A Expiration DateN/A ASME Code Name of Component Name of Manufacturer National Other Year Corrected, Removed, Stamped(Yes Manufacturer Serial No.

Board No.Identification Built or Installed or No)N63790 **1B21-F013C Crosby 0003 N/A Removed N/A N63790 *1821-F013C Crosby 0074 N/A UTC#2747288 Installed N/A Nut, Assembly 1-3/8

• • • • (12)N/A Removed N/A Lot It Nut, Assembly 1-3/8 Nova Machine 50365122 (12)Products N/A UTC# 2927946 2012 Installed N/A Description of Work :Class 1 Replacement of Relief Valve and Inlet Piping Nuts Tests Conducted: Hydrostatic []Pneumatic qNormal Operating PressureExempt[] Other E]

Pressure1033psiTest Temp.168.7°F Remarks:= Per N-5 Code Data Report on file at LaSalle Station CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacement conforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A Signedl Engineer Date3/26/2014 Owner or Owner's Desigfr e itle CERTIFICATE OF INSERVICE INSPECTION 1, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford.

Connecticut have inspected the components described in this Owner's Report during the period L1 R14to L1 R15. and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

,`&__ _'_'7_-_?Commissions NB 13411 A N I CIL2146 IC (Inspector's Signature)

Date CO i . i rF -

2i.,3 t V FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA.. 19348 Address2.PlantLaSalle County Nuclear Station Name 2601 N. 215` Rd. Marseilles, If. 61341 Address Date 3/26/2014 Sheet1ofI Unit01 W.O. # 1425180 Repair Organization, P.O. No., Job No.,etc.

3.4.5.6.7.8.9.Work Performed byMechanical Maintenance Name Mechanical Maintenance Address Identification of System B21 (Main Steam)(a)Applicable Construction Code 1971 Edition S72 Addenda,NoneCode Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A Authorization No.N/A Expiration DateN/A ASME Code Name of Manufacturer National Other Name of Component Year Corrected, Removed, Stamped(Yes Manufacturer Serial No.

Board No.Identification Built or Installed or No)N63790 **1B21-F013E Crosby 0008 N/A Removed N/A N63790 *1B21-F013E Crosby 0011 N/A UTC#02681242 Installed N/A Nut, Assembly 1-3/8

• • • • (12)N/A Removed N/A Lot #Nut, Assembly 1-3/8 Nova Machine 50365122 (12)Products N/A UTC# 2927946 2012 Installed N/A Description of Work :Class 1 Replacement of Relief Valve and Inlet Piping Nuts Tests Conducted: Hydrostatic E]Pneumatic E]Normal Operating Pressure X Exempt q Other q Pressure1033psiTest Temp.168.7°F Remarks:= Per N-5 Code Data Report on file at LaSalle Station CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacement conforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A Signedd^,sl slc^a,ISI Engineer Date3/26/2014 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period Li R14to L1 R15and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for annyy^personal liinjury or property damage or a loss of any kind arising from the connected with this inspection.

6W1,Lw f /f f -Commissions NB 13411 A N I CIL2146 IC (Inspector's Signature)/ y FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 213` Rd. Marseilles, 11. 61341 Address Date 3/26/2014 Sheet1of1 Unit01 W.O. # 1425181 Repair Organization, P.O. No., Job No.,etc.

3.Work Pe rformed byMechanical Maintenance NameNo.N/A Mechanical Maintenance Address Identification of System B21 (Main Steam)(a)Applicable Construction Code 1971 Edition S72 Addenda,NoneCode Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Type Code Symbol N/A Authorization No.N/A Expiration DateN/A 4.5.ASME Code Name of Component Name of Manufacturer National Other Year Corrected, Removed, Stamped(Yes Manufacturer Serial No.

Board No.Identification Built or installed or No)N63790 **1B21-F013H Crosby 0079 N/A Removed N/A N63790 *1821-F013H Crosby 0078 N/A UTC#02747289 Installed N/A Nut, Assembly 1-3/8

• • (12)N/A Removed N/A Lot #Nut, Assembly 1-3/8 Nova Machine 50365122 (12)Products N/A UTC# 2927946 2012 Installed N/A 7.

Class 1 Replacement of Relief Valve and Inlet Piping Nuts Pressure1033psiTest Temp.168.7°F 9.* - Per N-5 Code Data Report on file at LaSalle Station 8.Tests Conducted: Hydrostatic E]Pneumatic C]Normal Operating PressureExempt El Other [I CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacement conforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A SignedISI Engineer Date3/26/2014 Owner or Owner's Pil5 si d nee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period L1 R14to L1 R15, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

(2z ._7 0 , ` 2..._ __Commissions NB 13411 A N I CIL2146 IC (Inspector's Signature)

Date C03 - 2 q - Lot,(__ _-

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 215` Rd. Marseilles, [1. 61341 Address Date3/25/2014 Sheet1of1 Unit01 W.O. # 1425182 Repair Organization, P.O. No., Job No.,etc.

3.4.5.7.8.9.Work Performed byMechanical Maintenance Name Mechanical Maintenance Address Identification of System B21 (Main Steam)(a)Applicable Construction Code 1971 Edition S72 Addenda,NoneCode Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity-2001 Edition 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A Authorization No.N/A Expiration DateN/A ASME Code Name of Component Name of Manufacturer National Other Year Corrected, Removed, Stamped(Yes Manufacturer Serial No.

Board No.identification Built or Installed or No)N63930 **^`°5.3x^4Y 1B21-F013L Crosby 0013 N A Removed N63790-05-*d 3iyY 1821-FO13L Crosby 0107 N/A UTC#2747290 Installed-N{,4+Nut, Assembly 1-3/8

• • • • (12)N/A Removed N/A Lot #Nut, Assembly 1-3/8 Nova Machine 50365122 (12)Products N/A UTC# 2927946 2012 Installed N/A Description of Work :Class 1 Replacement of Relief Valve and Inlet Piping Nuts Tests Conducted: Hydrostatic E]Pneumatic F-1Normal Operating PressureExempt E] Other E]

Pressure1033psiTest Temp.168.7°F Remarks:* = Per N-5 Code Data Report on file at LaSalle Station CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacement conforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A Signed St Engineer Date3/26/2014 Owner or Owner's Desigfi

¢e, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period L1 R14to L1 R15, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.(Inspector's Signature)

Date O3. S I - a-0 / L(CommissionsNB 13411 A N I CIL2146 IC FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address2.PlantLaSalle County Nuclear Station Name 2601 N. 210` Rd. Marseilles, II. 61341 Address Date 3/26/2014 Sheet1of1 Unit01 W.O. # 1425183 Repair Organization, P.O. No., Job No.,etc.

3.4.5.6.7.9.Work Performed byMechanical Maintenance Name Mechanical Maintenance Address Identification of System B21 (Main Steam)(a)Applicable Construction Code 1971 Edition S72 Addenda,NoneCode Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity-2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A Authorization No.N/A Expiration DateN/A ASME Code Name of Component Name of Manufacturer National Other Year Corrected, Removed, Stamped(Yes Manufacturer Serial No.

Board No.Identification Built or Installed or No)N63790 **-541.1w V 1B21-F01311 Crosby 0015 N/A Removed N63790 gc ,b;.;I.Iq 1B21-F013R Crosby 0016 N/A UTC#2699957 Installed 11 Nut, Assembly 1-3/8

• • • sle (12)N/A Removed N/A Lot #Nut, Assembly 1-3/8 Nova Machine 50365122 (12)Products N/A UTC# 2927946 2012 Installed N/A Description of Work :Class 1 Replacement of Relief Valve and Inlet Piping Nuts Tests Conducted: Hydrostatic E]Pneumatic qNormal Operating PressureExempt E] Other E]

Pressure1033psiTest Temp.168.70 F Remarks:= Per N-5 Code Data Report on file at LaSalle Station CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacement conforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A 3126/2014 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period Li R14to L1 R1 S. and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section XL By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any mannerany personal injury or property damage or a loss of any kind arising from the connected with this inspection.(Inspector's Signature)

Date_63-,31- 2. o/v CommissionsNB 13411 A N I CIL2146 IC FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.Exelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear StationName 2601 N. 21w' Rd. Marseilles, If. 61341 Address Date 3/26/2014 Sheet1of1 Unit01 W.O. It 1425184 Repair Organization, P.Q. No., Job No.,etc.

4.5.6.Work Pe rlormed byMechanical Maintenance Name Mechanical Maintenance Address Identification of System 821 (Main Steam)(a)Applicable Construction Code-j_971 Edition S72 Addenda,NoneCode Case (b)Applicable Edition of Section XI Used for Repair/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A Authorization No.N/A Expiration DateN/A 7.8.9.ASME Code Name of Component Name of Manufacturer National Other Year Corrected, Removed, Stamped(Yes Manufacturer Serial No.

Board No.Identification Built or Installed or No)N63790 **0 8-10-11f Y 1021-F013U Crosby 0002 N/A Removed N63790

• 1B21-FO13U Crosby 0076 N/A UTC#2710694 Installed Nut, Assembly 1-3/8

• • • (12)N/A Removed N/A Lot It Nut, Assembly 1-3/8 Nova Machine 50365122 (12)Products N/A UTC# 2927946 2012 Installed N/A Description of Work :Class 1 Replacement of Relief Valve and Inlet Piping Nuts Tests Conducted: Hydrostatic []Pneumatic qNormal Operating PressureExempt 171 Other E]

Pressure1033psiTest Temp.168.7°F Remarks:= Per N-5 Code Data Report on file at LaSalle Station CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacement conforms to the Repair or replacement requirements of the ASME Code, Section Xi.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A Signed rQ 14 ISi Engineer Date3/26/2014 Owner or Owner's Desidie CERTIFICATE OF INSERVICE INSPECTION 1, the undersigned, holding a valid commission Issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period L1R14to L1R15, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

i (^/,/3/CommissionsNB 13411 A N I CIL2146 IC (Inspector's Signature)

Date 1.Owner FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI Exelon Generation Company (EGC) LLC02/27/2014 (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 21s` Rd. Marseilles, II. 61341 Address 4Date Sheet_1 of 1 UnitONE W.O. #1546168 Repair Organization, P.O. No., Job No., etc.

3.Work Performed byMechanical MaintenanceType Code Symbol N/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address.5Identification of SystemC41 (SC) Standby Liquid Control

.(a)Applicable Construction Code Sect. 1111977 Edition S77 Addendum., NoCode Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 20 11 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None 6.Identification of Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.Other cation Identification Built Corrected, Removed, or Installed ASME Code Stamped(Yes or No)Valve Replacement Kit Conax Nuclear 7782 N A 1C41-F004B

• Removed N I A Valve Replacement Kit Conax Nuclear 8473 N/A UTC#2939603 2013 Installed N/A Description of WorkClass 1 Replacement of Primer Chamber for Explosive Valve Tests Conducted: Hydrostatic []Pneumatic []Normal Operating Pressure N Other E] Pressure 1060 psiTest Temp. Ambient° F 9.Remarks *= Per N-5 Code Report on file at LaSalle Sta.

CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date NIA Signed 6o'-asIS[ Engineer Date3/4 /24/4 Owner or Owner's D^A ignee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period L1 R14 to L1 R15 .

and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

Exempt [](Inspector's Signature)

Date 4 3. O 1 - Z

-,l / C/'CommissionsNB 13411 A N I CIL2146 IC 3.Work Pe 4.5.rformed byMechanical Maintenance Name Mechanical Maintenance Address Identification of System(NB ) Nuclear Boiler (a)Applicable Construction Code Sect.

111 19 74 Edition NoAddenda,None Code Case (b)Applicable Edition of Section XI Used for Repair/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section X1 Code Case(s)

None Identification of Components Type Code Symbol N/A Authorization No.N/A Expiration DateN/A FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 21st Rd. Marseilles, II.61341 Address Date 4/2/2014 Sheet1of3 Unit01 W.O. #1560556 Repair Organization, P.O. No., Job No.,etc.

National Corrected, ASME Code Name of Component Name of Manufacturer Board Other Year Removed, or Stamped(Yes Manufacturer Serial No.

No.cation Identification Built installed or No)ROD,(THREADED),**7/8-9 x 9 (8)

N/A Removed No ROD, (THREADED ), Lot#UTC#7/8-9 x 9 (8)

Nova 50391725 N/A 2937973 2013 Installed No NUT, HEAVY HEX, 7/8

• • • • IN, 9 TPI (16)

N/A Removed No NUT, HEAVY HEX, 7/8 IN, 9 TPI (16)

Nova Ht. 3005189 N/A UTC# 2882024 2011 Installed No ROD, (THREADED ),****1 14.7 x 8 3/4 8 N/A Removed No ROD, (THREADED ), 1 1/4-7 x 8 3/4 8 N ov.Ht.146241 N/A 2006 Installed No Description of WorkClass 1 Replacement of Piping Flange Bolting Materials Required for Fix Vessel Reassembly.

• =per original specification

• • =Per Eval 45675 Tests Conducted: Hydrostatic E]Pneumatic E]Normal Operating PressureExempt q Other C] Pressure 1033 psiTest Temp. 168

°F Remarks CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacement conforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNtotE Certificate of Authorization Number MIA Expiration Date N/A Signed LZISI Engineer Date2 2c__Owner or Owner's Designee!" itle CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period L1i2/tto L/, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner

's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected

_Vith this inspection.

CommissionsNB 13411 A N I CIL2146 IC (Inspector's Signature)

Date OS/.D8- 9-A/'/

8.9.

FORM NIS-2 SUPPLEMENTAL SHEET 1.Owner:Exelon Generation Company (EGC) LLCSheet2of 3 200 Exelon Way, Kenneth Square,Date4/1/2014 PA., 19348Unit 01 2.Plant:LaSalle County Station 2601 N. 21s. Rd.

Marseilles, Illinois 61341 W.O. # 1560556 P. O. No., WR No., etc.

3.Work Performed by: Mechanical Maint.Type Code Symbol StampN/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address 4.Identification of System (NB) Nuclear Boiler 5a.Applicable Construction Code Sect. 111 74EditionNo Addenda 5b.Applicable Edition of Section XI utilized 2001 Edition 2003Addenda 6.Identification of Components Repaired or Replaced and Replacement Components.

FORM NIS-2 SUPPLEMENTAL SHEET 1.Owner:Exelon Generation Company (EGC) LLCSheet3of 3 200 Exelon Way, Kenneth Square,Date4/1/2014 PA., 19348Unit01 2.Plant:LaSalle County Station 2601 N. 21St. Rd.

Marseilles, Illinois 61341 3.Work Performed by: Mechanical Maint.Type Code Symbol StampN/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address 4.Identification of System (NB) Nuclear Boiler 5a.Applicable Construction Code Sect. III 74EditionNoAddenda 5b.Applicable Edition of Section XI utilized 2001 Edition 2003 Addenda 6.Identification of Components Repaired or Replaced and Replacement Components.

W.O. # 1560556 P. O. No., WR No., etc.

Name ofName of ComponentManufacturer Manufacturer Serial No.

VNational Board No.Other Identification Repaired, Replaced or Replacement ASME Code Stamped (Yes or No)Year Built Nova Nova Nova Nova N/A N/A N/A N/A N/A NIA Removed 2011 Replacement 2011 Replacement 2013 Replacement 2013 Replacement N/A N/A N/A N/A N/A N/A ROD, THREADED,1

-1/8-8x 81 (24)

ROD, THREADED,1-1/8-8x 81/2 (6)

ROD, THREADED,1-1/8-8x 81/2 (6)

ROD, THREADED, 1-1/8-8x 8 1/2 (8)ROD, THREADED,1-118-8x 81/2 (4)

Ht. # 6F30 Ht. # 8H87 Ht. 3022318 Ht. 3022318 UTC# 2898925 UTC# 2944076 UTC# 2944415 UTC# 2950476 N/A N/A N/AIIIIN/A FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 21't Rd. Marseilles, 161341 Address Date03/01/2014 Sheet1of1 UnitONE W.O. #1609723 Repair Organization, P.O. No., Job No., etc.

Work Performed byMechanical Maintenance NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address Identification of System (RD)

Control Rod Drive (a)Applicable Construction Code Sect. 1111971 Edition None Add, 1361-1.1361-2Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity-2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A Name of Manufacturer National Other Corrected, ASME Code Name of Component Board Removed, or Stamped(Yes Manufacturer Serial No.

cation Identification No.Built Installed or No)CRD Assembly G.E 6124 N/A 06-47*Removed N/A UTC#CRD Assembly G.E A2649 N/A 0002957583 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 06-47 Removed N/A CRD Flange Cap UTC#Screw (8)G.E Ht.# 7N57 N/A 0002925398 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-D0647 Tests Conducted: Hydrostatic qPneumatic qNormal Operating PressureExempt q Other q Pressure 1033 psiTest Temp. 168.7 ° F Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed.. S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013.88-396 & M-93-0595. ***

Replacement cap screw Code of Construction is ASME Sect. III, Cl. 1 1986 Ed.,No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE e certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code, Section Xi.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A 3.4.5.9.Signe CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period L1 R14 to L1 R15 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

CommissionsNB 13411 A N I CIL2146 IC (Inspector's Signature)

Date:2 ^703- 3L llQ FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI1.Owner Exelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 AddressPlantLaSalle County Nuclear Station Name 2601 N. 21st Rd. Marseilles, II. 61341 Address Date 4/1/2014 Sheet1of1 Unit01 W.O. # 1630909 Repair Organization, P.O. No., Job No.,etc.

formed byMechanical Maintenance Name Mechanical Maintenance Address Identification of System RT (a)Applicable Construction Code B31.7 19 69 Edition-Addenda,Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Com p o ants Type Code Symbol N/A Authorization No.N/A Expiration DateN/A Name of Component Name of Manufacturer Manufacturer Serial No.National Board No.Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped(Yes or No)PSA-3 Snubber PSA 40259 N/A**Removed N/A PSA-3 Snubber Basic PSA 45569 N/A UTC# 2953364 2013 Installed N/A Clevis Pin PSA*N/A**Removed N/A Clevis Pin Lisega Ht. # 649**

N/A UTC#2022410**

1991 Installed N/A Description of Work: Replacement of degraded yet functionally acceptable PSA-3 snubber. *= C of C on file at LaSalle Station

.**=Eval L-91-06 Tests Conducted: Hydrostatic E]Pneumatic 1771Normal Operating Pressure[]Exempt E]OtherPressurepsiTest Temp.°F Remarks: Testing LTS

-500-14 and VT-3, CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this replacementconforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code Stampnone Certificate of Authorization Number N/A Expiration Date N/A Signed1G^'ISI Engineer Date/' 141 Owner or Owner's Desie, Title CERTIFICATE OF INSERVICE INSPECTION 1, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the periodL1 R14toL1 R15, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

/^3srf .'CommissionsNB 13411 A N I C1L2146 IC (Inspector's Signature)

Date 0,q- Da-mid 3.Work Per 4.5.6 7.8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI1.Owner, Exelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address2.PlantLaSalle County Nuclear Station Name 2601 N. 215t Rd. Marseilles, 11. 61341 Address Date 4/1/2014 Sheet1of1 Unit01 W.O. # 1630913 Repair Organization, P.O. No., Job No.,etc.

formed byMechanical Maintenance Name Mechanical Maintenance Address Identification of System (a)Applicable Construction Code 831

.7 19 69 Edition-Addenda,, Code Case (b)Applicable Edition of Section XI Used for Repair/Replacement Activity-2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A Authorization No.N/A Expiration DateN/A Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board cation Identification Year Removed, or Stamped(Yes No.Built Installed or No)Snubber type 3072 Lisega 61316/91 N/A**Removed N/A UTC#Snubber type 3072 Lise a 61232-02 N/A 2869409**2011 Installed N/A Snubber Pin Lisega*N/A**Removed N/A Snubber Pin Basic PSA SN 3882 N/A UTC# 2952371 2006 Installed N/A Spherical Bearing Lisega*N/A**Removed N/A Spherical Bearing Lisega HT# 146307 N/A UTC# 2736289 2006 Installed N/A Description of Work: Replacement of degraded yet functionally acceptable Lisega 3072 snubber . *_

C of C on file at LaSalle Station.

• • =Eval 55196 Tests Conducted:

Hydrostatic qPneumatic 1771Normal Operating Pressure[]Exempt 1771 OtherPressurepsiTest Temp.F Remarks: Testing LTS-500-14 and VT-3 , CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this replacementconforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code Stampnone Certificate of Auhorization Number N/A Expiration Date N/A Signed!" ,-ISI Engineer DateL// /,0, {

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the periodL1 R14toL1 R15.and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arisi g from the connected with this inspection.

3.Work Per 4.5.6 7.8.9.Owner or Owner's Design , Title (Inspector's Signature)

/?t/- 0 2-ZO/V CommissionsNB 13411 N I,C11-2146 IC Date FORM NIS-2 OWNER'S REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 215` Rd.

Marseilles, 11.61341 Address Date 4/1/2014 Sheet1of1 Unit01 W.O. # 1630914 Repair Organization, P.O. No., Job No.,etc.

rformed byMechanical Maintenance Name Mechanical Maintenance Address Identification of System RR (a)Applicable Construction Code 831.7 19 69 Edition

_Addenda,y Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A Authorization No.N/A Expiration DateN/A Name of Component Name of Manufacturer Manufacturer Serial No.National Board No.Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped(Yes or No)Snubber type 3062RE2 Lise g a 61314/81 N/A**Removed N/A Snubber type 3062RE2 Lise g a 31200460/001 N/A UTC#2930785 2012 Installed N/A Description of Work: Replacement of degraded yet functionally acceptable Lisega 3062RE2 snubber .

• =C of C on file at LaSalle Station.

Tests Conducted: Hydrostatic E]Pneumatic E]Normal Operating Pressure q

OtherPressurepsiTest Temp.°F Remarks: Testing LTS

-500-14 and VT-3, CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this replacementconforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code Stampnone Certificate of Authorization Number N/A Expiration Date N/A 3.Work Pe 4.5.8.9.Owner or Owner's DesigndTitle Engineer Dater/Signe CERTIFICATE OF INSERVICE INSPECTION 1, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspectedthe components described in this Owner's Report during the periodL1 R14toL1 R15, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising flom the connected with this inspection.CommissionsNB 13411 A N I CIL2146 IC (Inspector's Signature)

Dateo2t^/^

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address2.PlantLaSalle County Nuclear Station Name 2601 N. 21St Rd. Marseilles, If. 61341 Address Date4 1 1/2014 Sheet1of1 Unit01 W.O. # 1630920 Repair Organization, P.O. No., Job No.,etc.

3.4.5.Work Performed byMechanical Maintenance Name Mechanical Maintenance Address Identification of SystemMS (a)Applicable Construction Code 831.7 19 69 Edition Addenda, Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Type Code Symbol N/A Authorization No.N/A Expiration DateN/A Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.Other cation Identification Built Corrected, Removed, or Installed ASME Code Stamped(Yes or No)PSA-35 6" stroke PSA 2529 N/A**Removed N/A PSA-35 6" stroke Basic PSA 5111 N/A UTC#2694886 2012 Installed ,,, y 4-1 Y Description of Work: Replacement of degraded yet functionally acceptable PSA-3 snubber. *= C of C on file at LaSalle Station.

Tests Conducted: Hydrostatic qPneumatic E]Normal Operating Pressure qExempt El OtherPressurepsiTest Temp.°F Remarks: LTS-500-14 and VT-3 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this replacementconforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code Stampnone Certificate of Authorization Number N/A Expiration Date N/A Signed; :^7/X / f=t^ -Date411, lee t, I/

Owner or Owner's esignee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the periodL1R14toLi R15, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

ti --- -CommissionsNB 13411 A N I CIL2146 IC (Inspector's Signature)

Date ttc/D/. oQd/c/

7.8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 215t Rd. Marseilles, If. 61341 Address Date03/03/2014 Sheet1of1 UnitONE W.O. #1638641 Repair Organization, P.O. No., Job No., etc.3.Work Performed byMechanical MaintenanceType Code Symbol N/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address4.Identification of System (RD) Control Rod Drive5.(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1, 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None6.Identification of Components Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board Identification Year Removed, or Stamped(Yes No.Built Installed or No)CRD Assembly G.E 8301 N/A 46-55*Removed N/A UTC#CRD Assembly G.E 7218 N/A 0002957576 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 46-55*Removed N/A CRD Flange Cap UTC#Screw (7)G.E Ht 7N57 N/A 0002925398 2014***Installed N/A CRD Flange Cap UTC#Screw (1)G.E Ht. 5C36 N/A 0002876277 2011***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-4655 Tests Conducted: Hydrostatic E]Pneumatic qNormal Operating Pressure Exempt El Other El Pressure 1033psiTest Temp. 168.7 ° F Remarks *= Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. 111, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595. ***

Replacement cap screw Code of Construction is ASME Sect. 111, Cl. 1 1986 Ed. No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificateof Authorization Number N/A Expiration Date N/A SignedDrf5cv.ISI Engineer Date Owner or Owner's Desig, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period L1 R14 to Li R15 .

and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section Xi.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

CommissionsNB 13411 A N I.CIL2146 IC (Inspector's Signature)

Date 8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 2155 Rd. Marseilles, 11. 61341 Address 4Date 03/03/2014 Sheet1of1 UnitONE W.O. #1638643 Repair Organization, P.O. No., Job No., etc.

3.Work Performed byMechanical MaintenanceType Code Symbol N/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address.5Identification of System (RD) Control Rod Drive

.(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1, 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None 6.Identification of Components Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board Identification Year Removed, or Stamped(Yes No.Built Installed or No)CRD Assembl y G.E 7466 N/A 54-27*Removed N/A UTC#CRD Assembly G.E 6864 N/A 0002934611 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 54-27*Removed N/A CRD Flange Cap UTC#Screw (8)G.E HL 7Z72 N/A 0002933755 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-5427 Tests Conducted: Hydrostatic qPneumatic qNormal Operating PressureExempt q Other q Pressure 1033 psiTest Temp.168.7 ° F Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. 111, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

Replacement cap screw Code of Construction is ASME Sect. III, Cl. 1 1986 Ed No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the requirements of the ASME Code,Section XI.

repair or replacement Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A 4 SignecVISI En g ineer Date Owner or Owner's Desie, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period Li R14 to L1 R15 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the c onnec ted with this inspection.

CommissionsNB 13411 A N I CIL2146 IC (Inspector's Signature)

Date 0 ^ - 0,-( - aZ..L ' S(8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address2.Plant-LaSalle County Nuclear Station Name 2601 N. 215` Rd. Marseilles, 11. 61341 Address Date03/03/2014 Sheet1of1 UnitONE W.O. #1638644 Repair Organization, P.O. No., Job No., etc.

3.Work Performed byMechanical MaintenanceType Code Symbol N/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address 5Identification of System (RD) Control Rod Drive 6(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1, 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None.Identification of Components Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board Identification Year Removed, or Stamped(Yes No.Built Installed or No)CRD Assembly G.E A984 N/A 10-51*Removed N/A UTC#CRD Assembly G.E 8317 N/A 0002934618 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 10-51*Removed N/A CRD Flange Cap UTC#Screw (8)G.E HL 7Z72 N/A 0002933755 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drivel C1 1-1051 Tests Conducted: Hydrostatic 171Pneumatic E]Normal Operating PressureExempt q Other [] Pressure 1033psiTest Temp. 168.7 ° F Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

Replacement cap screw Code of Construction is ASME Sect. III Cl. 1 1986 Ed.,No Add. Reconciled to the original Code of Construction per Mfg. Eva]. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the requirements of the ASME Code,Section XI.

repair or replacement Type of Code StampNone Certifica te of Authorization Number N/A Expiration Date N/A Signed.ISI Engineer Date O3 C^207/4_Owner or Owner's Desk ee, T itle CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period L1 R14 to L1 R15 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

'7i^/!^ ----Commissions NB 13411 A N 1 CIL2146 IC (Inspector's Signature)

Date C 3 - c-)'/-(Y 4..8.9.

1.Owner FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XIExelon Generation Company (EGC) LLC (Name)Date 03/03/2014 200 Exelon Way, Kennett Square, PA., 19348 Address 2.Plant LaSalle County Nuclear Station Name 2601 N. 21s` Rd. Marseilles, II. 61341 Address Sheet1of1 UnitONE W.O. #1638645 Repair Organization, P.O. No., Job No., etc.

3.Work Per Performed byMechanical Maintenance NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address Identification of System (RD) Control Rod Drive (a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1, 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A National Corrected, ASME Code Name of Component Name of Manufacturer Board Other Year Removed, or Stamped(Yes Manufacturer Serial No.

No.Identification Built Installed or No)CRD Assembly G.E 8726 N/A 18-55*Removed N/A UTC#CRD Assembly G.E 7725 N/A 0002934622 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 18-55*Removed N/A CRD Flange Cap UTC#Screw (8)G.E Ht.# 3R70 N/A 0002946399 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drivel Cl 1-1855 Tests Conducted: Hydrostatic E]Pneumatic E]Normal Operating PressureExempt q Other [] Pressure 1033psiTest Temp. 168.7 ° F Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595. ***

Replacement cap screw Code of Construction is ASME Sect. III, Cl. 1 1986 Ed-No Add. Reconciled to the original Code of Construction per Mfg.Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A SignedISI Engineer Date Lam. © /z Owner or Owner's Desrgnee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period L1 R14 to L1 R15 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

+_ -^ 27--^-CommissionsNB 13411 A,N,I,CIL2146 IC (Inspector's Signature)

Date 4.5.6.7.8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1OwnerExelon Generation Company (EGC) LLCDate03/03/2014 (Name)200 Exelon Way, Kennett Square, PA., 19348Sheet1of1 Address 2.PlantLaSalle County Nuclear StationUnitONE Name 2601 N. 215t Rd. Marseilles, 11. 61341 Address 3.Work Performed byMechanical Maintenance Name Mechanical Maintenance Address 5Identification of System (RD) Control Rod Drive

.6(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361-1, 1361

-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition 2003 Add.(c)Applicable Section XI Code Case(s)

None.Identification of Components Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board Identification Year Removed, or Stamped(Yes No.Built Installed or No)CRD Assembly G.E 7434 N/A 34-55*Removed N/A UTC#CRD Assembly G.E A8521 N A 0002957588 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 34-55*Removed N/A CRD Flange Cap UTC#Screw (8)G.E Ht.3R70 N/A 0002946399 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-3455 Tests Conducted: Hydrostatic 0Pneumatic E]Normal Operating PressureExempt q Other [] Pressure 1033psiTest Temp. 168.7 ' F Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013.88-396 & M-93-0595.

Replacement cap screw Code of Construction is ASME Sect. III Cl. 1 1986 Ed.,No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the requirements of the ASME Code,Section XI.

repair or replacement Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A Signedc^^.was IS[ Engineer Date Owner or Owner's Desig,Title CERTIFICATE OF INSERVICE INSPECTION 1, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period Li R14 to Li R15 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arisin rom the connected with this inspection.

CommissionsNB 13411 A N I CIL2146 IC (Inspector's Signature)

Date3- cD (f. U2.(} / c 4 W.O. #1638646 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol N/A Authorization No.N/A Expiration DateN/A 4.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI1.OwnerExelon Generation Company (EGG) LLCDate03/03/2014 (Name)200 Exelon Way, Kennett Square, PA., 19348Sheet1of1 Address2.PlantLaSalle County Nuclear StationUnitONE Name 2601 N. 21" Rd. Marseilles, II.61341 Address Repair Organization, P.O. No., Job No., etc.

4W.O. #1638647 3.Work Performed byMechanical MaintenanceType Code Symbol N/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address.5Identification of System (RD) Control Rod Drive

.(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361-1, 1361

-2 Code Case (b)Applicable Edition of Section X1 Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None 6.Identification of Components Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board Identification Year Removed, or Stamped(Yes No.Built Installed or No)CRD Assembly G.E A8529 N/A 46-51*Removed N/A UTC#CRD Assembly G.E A8322 N/A 0002957587 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 46-51*Removed N/A CRD Flange Cap UTC#Screw (1)G.E Ht 3C50 N/A 0002836698 2014***Installed N/A CRD Flange Cap UTC#Screw (7)G.E Ht 4K85 N A 0002865878 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-4651 Tests Conducted: Hydrostatic qPneumatic qNormal Operating PressureExempt Other E] Pressure 1033psiTest Temp. 168.7 ° F Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

• • • Replacement cap screw Code of Construction is ASME Sect. III Cl. 1 1986 Ed.,No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 q CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A Signed_^SI Engineer Date L 3/ 2Co/Y O wner or Owner's Designitle CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period L1 R14 to L1 R15 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

_________________________________________

Commissions NB 13411 A N I CIL2146 IC (Inspector's Signature)

Date8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 21St Rd. Marseilles, Ii. 61341 Address 3.Work Per 4.5.6.National Corrected, ASME Code Name of Component Name of Manufacturer Board Other Removed, or Stamped(Yes Manufacturer Serial No.

No.cation Identification Built Installed or No)CRDAssembl G.E 8544 N/A 54-43*Removed N/A UTC#CRD Assembly G.E A1000 N/A 0002934610 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 54-43*Removed N/A CRD Flange Cap UTC#Screw (8)G.E HL# 7N57 N/A 0002925398 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-5443 Tests Conducted: Hydrostatic

[IPneumatic E]Normal Operating Pressure N Exempt E]Other E] Pressure 1033psiTest Temp. 168.7 ° F Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595. ***

Replacement cap screw Code of Construction is ASME Sect. III, Cl. 1 1986 Ed-No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A SignedISI En ineer Date Q3 /20/'/Owner or Owner's Desig ee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period L1 R14 to Li R15 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report.Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

CommissionsNB 13411 A,N,I,GIL2146 IC (Inspector's Signature)

Date Date 03/03/2014 Sheet1of1 UnitONE W.O. #1638648 Repair Organization, P.O. No., Job No., etc.

Performed byMechanical Maintenance NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address Identification of System (RD) Control Rod Drive (a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361-1, 1361

-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A 7.8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1OwnerExelon Generation Company (EGC) LLCDate03/01/2014 (Name)200 Exelon Way, Kennett Square, PA., 19348Sheet1of1 Address 2.PlantLaSalle County Nuclear StationUnitONE Name 2601 N. 21St Rd. Marseilles, 11.

61341W.O. #1638651 AddressRepair Organization, P.O. No., Job No., etc.

.Identification of System (RD) Control Rod Drive 5.(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1, 1361-2 Code Case Work Performed byMechanical MaintenanceType Code Symbol N/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address (b)Applicable Edition of Section XI Used for Repair/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None 6.Identification of Com p onents Name of Manufacturer National Other Corrected, ASME Code Name of Component Board Removed, or Stamped(Yes Manufacturer Serial No.

cation Identification No.Built installed or No)CRDAssembl G.E 7690 N/A 26-59*Removed N/A UTC#CRD Assembly G.E 9283 N/A 0002957580 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 26-59*Removed N/A CRD Flange Cap UTC#Screw (8)G.E Ht.# OB17 N/A 0002817776 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-D2659 Tests Conducted: Hydrostatic qPneumatic E]Normal Operating Pressure Exempt E]Other [I Pressure 1033psiTest Temp. 168.7 ° F .

Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595. *'*

Replacement can screw Code of Construction is ASME Sect. III, Cl. 1 1986 Ed-No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A Signe,^^ T f^ISI Engineer Date Q Ile0 iy Owner or Owner's Desi q e, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period L1 R14 to L1 R15 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

CommissionsNB 13411 A N 1 CIL2146 IC (Inspector's Signature)

Date Q,'3 - CD-3 -1/ -(4.7.8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI Owner Exelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 215` Rd. Marseilles, II. 61341 Address Date 03/01/2014 Sheet1of1 UnitONE W.O. #1638652 Repair Organization, P.O. No., Job No., etc.

Work Performed byMechanical Maintenance NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address Identification of System (RD) Control Rod Drive (a)Applicable Construction Code Sect. 111 1971 Edition None Addendum.,1361-1, 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A Name of Manufacturer National Other Corrected, ASME Code Name of Component Board Year Removed, or Stamped(Yes Manufacturer Serial No.

No.Identification Built installed or No)CRD Assembly G.E 8501 N/A 42-51*Removed N/A UTC#CRD Assembly G.E A1009 N/A 0002957582 2014**Installed N/A CRD Flange Cap Screw 8 G.E*N/A 42-51*Removed N/A CRD Flange Cap UTC#Screw (5)G.E Ht.# H490 N/A 0002834790 2014***Installed N/A CRD Flange Cap UTC#Screw (3)GE Ht# 1G20 N I A 0002834791 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-D4251 Tests Conducted: Hydrostatic 171Pneumatic E]Normal Operating Pressure Exempt q Other El Pressure 1033psiTest Temp. 168.7

• F 9.Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595. ***

Replacement cap screw Code of Construction is ASME Sect. III, CI. 1 1986 Ed.,No Add. Reconciled to the original Code of Construction per Mfg. Eva]. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A//SignedISI Engineer DateC9 Aq 1-Z'Owner or Owner's Design, Title CERTIFICATE OF INSERVICE INSPECTION 1, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period 1 R14 to L1 R15 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

CommissionsNB 13411 A N I CIL2146 IC (Inspector's Signature)

Date 03, 0 3i - 7Q) /r-(3.4.5.6.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLCDate03/01/2014 (Name)200 Exelon Way, Kennett Square, PA., 19348Sheet1of1 Address 2.Plant L aSalle County Nuclear StationUnitONE Name 2601 N. 215` Rd. Marseilles, II. 61341 Address 3.Work Performed byMechanical Maintenance Name Mechanical Maintenance Address 5Identification of System (RD) Control Rod Drive 6(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1. 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None.Identification of Components Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board Identification Year Removed, or Stamped(Yes No.Built Installed or No)CRD Assembly G.E 1828 N/A 38-27*Removed N/A UTC#CRD Assembly G.E A1022 N/A 0002934620 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 38-27 Removed N/A CRD Flange Cap UTC#Screw (8)G.E Ht.# 7N57 N/A 0002925398 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-D3827 Tests Conducted: Hydrostatic qPneumatic ElNormal Operating Pressure Exempt E]Other E] Pressure 1033 psiTest Temp. 168.7 ° F Remarks *= Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

• • • Replacement cap screw Code of Construction is ASME Sect. III CIA 1986 Ed.,No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the requirements of the ASME Code,Section XI.

repair or replacement Certificate ofof^Authorization Number N/A Expiration Date NIA 01 Type of Code StampNone Signed (tea--w i g. ., ISI Engineer Date______ __Owner or Owner's Desi n , Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period Li R14 to Li R15 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connectgd,with this inspection.

CommissionsNB 13411 A N 1 CIL2146 IC (Inspectors Signature)

Date 03.0 3 2 i^, /

W.O. #1638654 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol N/A Authorization No.N/A Expiration DateN/A 4..8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLCDate03/03/2014 (Name)200 Exelon Way, Kennett Square, PA., 19348Sheet1of1 Address 2.UnitONE Name 2601 N. 21st Rd.

Marseilles, II. 61341 Address 3.Work Performed byMechanical MaintenanceType Code Symbol N/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address 5Identification of System (RD) Control Rod Drive 6(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1, 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None.Identification of Components Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board cation Identification Year Removed, or Stamped(Yes No.Built Installed or No)CRD Assembly G.E A8942 N/A 22-15*Removed N/A UTC#CRD Assembly G.E A6563 N/A 0002934628 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 22-15*Removed N/A CRD Flange Cap UTC#Screw (8)G.E Ht. 31170 N/A 0002946399 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-2215 Tests Conducted: Hydrostatic E]Pneumatic E]Normal Operating PressureExempt q Other E] Pressure 1033psiTest Temp.

168.7

• F Remarks *= Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

Replacement cap screw Code of Construction is ASME Sect. 111, Cl. 1 1986 Ed.,No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A Signe(/^; fISI Engineer Dater]wnar nr rlwnar'a nociTitin CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period Li R14 to Li R15 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

CommissionsNB 13411 A.N I CIL2146 IC (Inspector's Signature)

Date W.O. #1638655 Repair Organization, P.O. No., Job No., etc.

4..8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1OwnerExelon Generation Company (EGC) LLCDate03/03/2014 (Name)200 Exelon Way, Kennett Square, PA., 19348Sheet1of1 Address 2.Plant LaSalle County Nuclear StationUnitONE Name 2601 N. 21" Rd. Marseilles, II. 61341 Address 3.Work Performed byMechanical Maintenance Name Mechanical Maintenance Address 5Identification of System (RD) Control Rod Drive 6(a)Applicable Construction Code Sect. 1111971 Edition None Addendum., 1361-1. 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity-2001 Edition 2003 Add.(c)Applicable Section XI Code Case(s)

None.Identification of Components Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board Identification Year Removed, or Stamped(Yes No.Built Installed or No)CRD Assembly G.E A994 N/A 30-47 Removed N/A UTC#CRD Assembly G.E 7523A N/A 0002957577 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 30-47 Removed N/A CRD Flange Cap UTC#Screw (8)G.E Ht 7N57 N/A 0002925398 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-3047 Tests Conducted: Hydrostatic qPneumatic E]Normal Operating PressureExempt Other E] Pressure 1033 psiTest Temp. 168.7 ' F Remarks'= Per N-5 Code Report on file at LaSalle Sta."'= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

Replacement cap screw Code of Construction is ASME Sect. III Cl. 1 1986 Ed. No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 q CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the W.O. #1638656 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol N/A Authorization No.N/A Expiration DateN/A 4..8.9.requirements of the ASME Code,Section XI.

repair or replacement Certificate of Authorizati on Number N/A Expiration Date N/A Signed C-.^ISI Engineer Date Type of Code StampNone Owner or Owner' s Designe , itle CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period L1R14 to L1R16 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.(Inspector's Signature)

Date 03 . p c(.

Z...c^ < C f

--CommissionsNB 13411 A.N.I CIL2146 IC FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI1.OwnerExelon Generation Company (EGC) LLCDate03/01/2014 (Name)200 Exelon Way, Kennett Square, PA., 19348Sheet1of1 Address2.Plant LaSalle County Nuclear StationUnitONE Name 2601 N. 21St Rd. Marseilles, II. 61341W.O. #1638657 AddressRepair Organization, P.O. No., Job No., etc.(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1, 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components National Corrected, ASME Code Name of Component Name of Manufacturer Board Other Year Removed, or Stamped(Yes Manufacturer Serial No.

No.cation identification Built Installed or No)CRD Assembly G.E 7890A N/A 34-15 Removed N/A UTC#CRD Assembly G.E A1029 N/A 0002934621 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 06-47*Removed N/A CRD Flange Cap UTC#Screw (8)G.E Ht.# 0817 N/A 0002817776 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-D3415 Tests Conducted: Hydrostatic qPneumatic qNormal Operating PressureExempt q Other q Pressure 1033 psiTest Temp. 168.7 ° F Remarks *= Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

Replacement cap screw Code of Construction is ASME Sect. III, Cl. 1 1986 Ed.,No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date NIA SignedISI Engineer Date Owner or Owner's Des'e.Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period Li R14 to L1 RI5 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising f om the onnected with this inspection.

(__.^CommissionsNB 13411 A N I CIL2146 IC (Inspector's Signature)

Datec^--c%1^/3.Work Performed byMechanical Maintenance 4.5.6.Name Mechanical Maintenance Address Identification of System (RD) Control Rod Drive Type Code Symbol N/A Authorization No.N/A Expiration DateN/A 7.8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI1.OwnerExelon Generation Company (EGC) LLCDate03/03/2014 (Name)200 Exelon Way, Kennett Square, PA., 19348Sheet1of1 AddressPlant LaSalle County Nuclear StationUnitONE Name 2601 N. 210` Rd. Marseilles, 11. 61341W.O. #1638658 AddressRepair Organization, P.O. No., Job No., etc.

Components 3.Work Performed byMechanical MaintenanceType Code Symbol N/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A-Address Identification of System (RD) Control Rod Drive 4.(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1, 1361-2 Code Case 5.(b)Applicable Edition of Section XI Used for Repair/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None6.Identification of National Corrected, ASME Code Name of Component Name of Manufacturer Board Other Year Removed, or Stamped(Yes Manufacturer Serial No.

No.Identification Built Installed or No)CRD Assembly G.E 8721 N/A 54-19*Removed N/A UTC#CRD Assembly G.E 9442 N/A 0002934616 2014**Installed N/A CRD Flange Cap Screw (8)G.E N/A 54-19 Removed N/A CRD Flange Cap UTC#Screw (1)G.E Ht X8169 N/A 0002817777 2014***Installed N/A CRD Flange Cap UTC#Screw (1)G.E Ht.OB17 N/A 0002817776 2014***Installed N/A CRD Flange Cap UTC#Screw 6 G.E Ht 7N57 N/A 0002925398 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-5419 Tests Conducted: Hydrostatic []Pneumatic qNormal Operating Pressure Other [] Pressure 103 33 psiTest Temp. 168.7 0 F Remarks* = Per N-5 Code Report on file at LaSalle Sta.' "= Replacement CRD Code of Construction is ASME Sect. III 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

Replacement cap screw Code of Construction is ASME Sect. III, Cl. 1 1986 Ed-No Add. Reconciled to the original Code of Construction Per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code, Section Xl.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A Signed(c 4r/r , ISI Engineer Date 03/03 6 14 Owner or Owner's DesTitle CERTIFICATE OF INSERVICE INSPECTION 1, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period L1 R14 to L1 R15 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section A.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

8.9.Exempt C](Inspector's Signature)

Date 03 -Oc/ _ a.tl / C1 CommissionsNB 13411 A N I CIL2146 IC Signedt Owner or Owner's Design lTitle ISI Engineer Date_C 3^G//7 /FORM NIS-2 OWNER'S REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.Plant LaSalle County Nuclear Station Name 2601 N. 21" Rd. Marseilles, II.61341 Address Date 03/01/2014 Sheet1of1 UnitONE W.O. #1638659 Repair Organization, P.O. No., Job No., etc.

Name Mechanical Maintenance Address Identification of System (RD) Control Rod Drive (a)Applicable Construction Code Sect, 1111971 Edition None Addendum.,1361-1, 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Mechanical Maintenance Type Code Symbol N/A Authorization No.N/A Expiration DateN/A National Corrected, ASME Code Name of Component Name of Manufacturer Board Other Year Removed, or Stamped(Yes Manufacturer Serial No.

No.cation Identification Built Installed or No)CRD Assembly G.E 8518 N/A 14-31*Removed N/A UTC#CRD Assembly G.E 9391 N/A 0002957581 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 14-31*Removed N/A CRD Flange Cap UTC#Screw (6)G.E Ht# 3R70 N/A 0002946399 2014***Installed N/A CRD Flange Cap UTC#Screw (1)G.E Ht.# C192 N/A 0002834789 2014***Installed N/A CRD Flange Cap UTC#Screw (1)G.E Ht.# 7N57 N/A 0002925398 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-D1431 Tests Conducted: Hydrostatic E]Pneumatic 0Normal Operating Pressure 19 Exempt q Other 171 Pressure 1033psiTest Temp. 168.7 ° F Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. 111, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

Replacement cap screw Code of Construction is ASME Sect. III, Cl. 1 1986 Ed.,No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period Li R14 to L1 R15 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

CommissionsNB 13411 A N I CIL2146 IC Date 3.Work Pe rformed by 4.5.6.8.9.(Inspector's Signature) t93 (a7 FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI1.OwnerExelon Generation Company (EGC) LLCDate03/03/2014 (Name)200 Exelon Way, Kennett Square, PA., 19348Sheet1of1 Address2.Plant-LaSalle County Nuclear StationUnitONE Name 2601 N. 215` Rd. Marseilles, If. 61341 Address Repair Organization, P.O. No., Job No., etc.

4W.O. #1638660 3.Work Performed byMechanical MaintenanceType Code Symbol N/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address.5Identification of System (RD) Control Rod Drive

.(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1, 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity-2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None 6.Identification of Components Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board Identification Year Removed, or Stamped(Yes No.Built Installed or No)CRDAssembly G.E 7756 N/A 46-31*Removed N/A UTC#CRD Assembly G.E 8356 N/A 0002934614 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 46-31 Removed N/A CRD Flange Cap UTC#Screw (8)G.E Ht 7Z72 N/A 0002933755 2014***Installed N/A LI Description of WorkClass 1 Replacement of Control Rod Drivel C1 1 -4631 Tests Conducted: Hydrostatic []Pneumatic F1Normal Operating PressureExempt q Other 171 Pressure 1033psiTest Temp. 168.7 ° F Remarks* = Per N-5 Code Report on the at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. ill. 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

• • • Replacement cap screw Code of Construction is ASME Sect. III CI 1 1986 Ed No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the requirements of the ASME Code,Section XI.

repair or replacement 8.9.Type of Code StampNone Certificate of Authorization Number Signed(c Owner or Owner's Desic*ii e, Title Expiration Date WA neer Date C614 N/A CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period L1 R14 to L1 R15 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arisin g from the connected with this inspection.

<-^/fit 227 1' 2 -Commissions NB 13411 A N I CIt2146 IC (Inspector's Signature)

Date O3 o S- d J 7 FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1OwnerExelon Generation Company (EGC) LLCDate03/03/2014 (Name)200 Exelon Way, Kennett Square, PA., 19348Sheet1of1 Address 2.Plant L aSalle County Nuclear StationUnitONE Name 2601 N. 216t Rd. Marseilles, 11. 61341 Address 3.Work Performed byMechanical Maintenance Name Mechanical Maintenance Address 5Identification of System (RD) Control Rod Drive 6(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1, 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None.Identification of Com p onents Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board Identification Year Removed, or Stamped(Yes No.Built installed or No)CRD Assembly G.E 8352 N/A 34-59 Removed N/A-UTC#CRD Assembly G.E 8255 N/A 0002957579 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 34-59*Removed N/A CRD Flange Cap UTC#Screw (8)G.E HL 7Z72 N/A 0002933755 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drivel C1 1 -3459 Tests Conducted: Hydrostatic []Pneumatic qNormal Operating Pressure Exempt El Other E] Pressure 1033psiTest Temp. 168.7 ° F Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **= Replacement CRD Code of Construction is ASME Sect. III. 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

• • • Replacement cap screw Code of Construction is ASME Sect. III Cl. 1 1986 Ed No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the requirements of the ASME Code,Section XI.

repair or replacement Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A Signed. .r _ `r p o -ISI Engineer Date U3l D 3 /20 / 1 Owner or Owner's Desq ee, Title' 1 -Commissions NB 13411 A N 1 CIL2146 IC CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period Li R14 to Li R15 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connect ed with this inspection.(Inspector's Signature)

Date W.O. #1638661 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol N/A Authorization No.N/A Expiration DateN/A 4..8.9.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.Plant LaSalle County Nuclear Station Name 2601 N. 21sT Rd. Marseilles, II. 61341 Address Date03/03/2014 Sheet1of1 UnitONE W.O. #1638662 Repair Organization, P.O. No., Job No., etc.3.Work Performed byMechanical MaintenanceType Code Symbol N/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address4.Identification of System (RD) Control Rod Drive5.(a)Applicable Construction Code Sect. III 1971 Edition None Addendum.,1361-1, 1361

-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None6.Identification of Components Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board Identification Year Removed, or Stamped(Yes No.Built installed or No)CRD Assembly G.E 7556A N/A 54-47*Removed N/A UTC#CRD Assembly G.E 8246 N I A 0002934608 2014**Installed N/A CRD Flange Cap Screw (8)G.E N/A 54-47*Removed N/A CRD Flange Cap UTC#Screw (8)G.E Ht 7Z72 N I A 0002933755 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-5447 Tests Conducted: Hydrostatic qPneumatic qNormal Operating Pressure Exempt q Other q Pressure 1033 psiTest Temp.

168.7 0 F Remarks *= Per N-5 Code Report on file at LaSalle Sta.' "= Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed.. S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

Replacement cap screw Code of Construction is ASME Sect. III Cl. 1 1986 Ed No Add. Reconciled to the original Code of Construction per Mfg. Eval. M91-007-0320-01 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the requirements of the ASME Code,Section XI.

repair or replacement Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A 8.9.,s ISI Engineer Date o 9/o 3/7031!a, Title Signe ner or Owner's Desi aR CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspected the components described in this Owner's Report during the period Li R14 to L1 R15 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

CommissionsNB 13411 A N i CIL2146 IC (Inspector's Signature)

Date 03 .0Y-ofL 1'-/

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 215` Rd. Marseilles, [I. 61341 Address Date 03/03/2014 Sheet1of1 UnitONE W.O. #1638663 Repair Organization, P.O. No., Job No., etc.

3.Work Performed byMechanical MaintenanceType Code Symbol N/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateNIA Address 5Identification of System (RD) Control Rod Drive

.6(a)Applicable Construction Code Sect. 1111971 Edition None Addendum.,1361

-1, 1361-2 Code Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None.Identification of Com p onents Name of Manufacturer National Other Corrected, ASME Code Name of Component Manufacturer Serial No.

Board Identification Year Removed, or Stamped(Yes No.Built Installed or No)CRD Assembly G.E 8512 N/A 26-43*Removed N/A-UTC#CRD Assembly G.E 8212 N/A 0002957578 2014**Installed N/A CRD Flange Cap Screw (8)G.E*N/A 26-43*Removed N/A CRD Flange Cap UTC#Screw (8)G.E Ht.# 7Z72 N/A 0002933755 2014***Installed N/A Description of WorkClass 1 Replacement of Control Rod Drive 1C11-D2643 Tests Conducted: Hydrostatic E]Pneumatic E]Normal Operating PressureExempt Other [] Pressure 1033psiTest Temp. 168.7 ° F Remarks* = Per N-5 Code Report on file at LaSalle Sta.' **=

Replacement CRD Code of Construction is ASME Sect. III, 1971 Ed., S73 & W75 Add. Reconciled to the original per PTE's PTE-88-013,88-396 & M-93-0595.

Replacement cap screw Code of Construction is ASME Sect. III CI 1 1986 Ed No Add. Reconciled to the original Code of Construction per Mfg.Eval. M91-007-0320-01 q CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the requirements of the ASME Code,Section XI.

repair or replacement Type of Code StampNone Certificate of Authorization Number N/A Expiration Date WA Signed.^..2cISI Engineer Date d 342,0 Owner or Owner's Desi e, Title CERTIFICATE OF INSERVICE INSPECTION i, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the period 1-11414 to L1R15 . and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from the connected with this inspection.

4.8.9.(Inspector's Signature)

Date 02 -63 ` 11-A-) / q CommissionsNB 13411 A N I CIL2146 IC FORM NIS-2 OWNER'S REPORT FOR REPAIRIREPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI1.OwnerExelon Generation Company (EGC) LLCDate09/13/2012 (Name)200 Exelon Way, Kenneth Square, PA., 19348Sheet1of1 Address2.PlantLaSalle County Nuclear StationUnit01 Name 2601 N. 21" Rd. Marseilles, 11 61341W.O. #01492443 Address Repair Organization, P.O. No., Job No., etc.3.Work Performed byMechanical MaintenanceType Code Symbol StampN/A (Name)Authorization No.N/A Mechanical MaintenanceExpiration DateN/A (Address)(b)Applicable Edition of Section XI Used for Repair/Replacement Activity-2001 Ed., 2003 Ad.(c)Applicable Section XI Code Case(s)none6.Identification of Components4.Identification of System HP (High Pressure Core Spray)5.(a)Applicable Construction Code 71 Edition S73 Addenda, Code Casesnone Nat'l Bd.No.N/A*N/A*WA`Year Built 2012 2012 2012 Name of Component Water Leg Pum Gland Seal 3/8-16 Threaded Rod 3/8 Hex Jam Nut Name of Mfr.Crane Energy Steel Nova Nova Mfrs.Ser. No.NDC-001216 Heat#4FD3 Heat#729857 Heat#730340 Other Identification 1E22-C003 Cat ID# 1455932-1 Cat ID#37063-1 Cat ID#1457214-1 Corrected Removed, or installed Removed installed Installed Installed ASME Code Stamped Yes or No Yes NO NO NO p Description of Work : Class 2 Replacement,* =per N-5 or NIS-2 Code Data Report on file at LaSalle Station Tests Conducted:

Hydrostatic I_i Pneumatic I__I Normal Operating Pressure i I Exempt I_I Other 1=1 Pressure N/A psigTest Temp. N/A Deg. F Remarks. Gland Seal UTC

1. 2910173 received under RIN# 171533 parts eval

1. 76414 - Threaded Rod UTC# 2912742 Pump S/N NDC-001216 was rebuilt and returned to stores for future use, a pressure test and VT

-2 examination will be performed after installation (Applicable Manufacturer's Data Report to be Attached )

CERTIFICATION OF COMPLIANCE I certify that the statements made In the report are correct and that this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stampnone 7.8.9.Expiration DateN/A WA Coordinator DateSeptember 13. 2012 Signed Mark Bosnich /

Certificate of Authorization No.

Owner or Owner's Design e, Tit CERTIFICATE OF INSERVICE INSPECTION1, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by The Hartford Steam Boiler Insp. & Ins. Co. of Connecticut have inspected the components described in this Owner's Report during the period b/ R/`1to b//./S" and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty , expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

CeK-te^Commissions13411 A N I IL. 21461 C inspector's SignatureNational Board, State, Province, and Endorsements Date FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.OwnerExelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address2.PlantLaSalle County Nuclear Station Name 2601 N. 21't Rd. Marseilles, 11. 61341 Address Date 3/31/2014 Sheet1of1 Unit01 W.O. # 1630935 Repair Organization, P.O. No., Job No.,etc.

formed byMechanical Maintenance Name Mechanical Maintenance Address Identification of System9 V4 (a)Applicable Construction Code B31.1 19 73Edition N/A Addenda,N/ACode Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A Authorization No.N/A Expiration DateN/A Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.Other cation Identification Built Corrected, Removed, or Installed ASME Code Stamped(Yes or No)PSA-3 5" stroke PSA 534 N/A**Removed N/A PSA-3 5" stroke Basic PSA 45330 N/A UTC#2921011 2012 Installed N/A Description of Work: Replacement of degraded yet functionally acceptable PSA-3 snubber. *= C of C on file at LaSalle Station.

Tests Conducted: Hydrostatic E]Pneumatic E]Normal Operating PressureExempt E]OtherPressurepsiTest Temp.°F 9.Remarks: LTS-500-14 and VT-3 CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this replacementconforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code Stampnone Certificate of Authorization Number N/A Expiration Date N/A Signed^^wDate 3l3!Zd/Z Owner or Owner' esignee, Title CERTIFICATE OF INSERVICE INSPECTION 1, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford. Connecticut have inspected the components described in this Owner's Report during the periodL1 R14toL1 R15, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arisi ng from the connected with this inspection.

Z: G.__777 v/`Commissions NB 13411 A N 1 CIL2146 IC (Inspector's Signature)

Date Oel-Of-2,)/-/3.Work Per 4.5.6.7.8.

FORM NIS-2 OWNER'S REPORT FOR REPAIR

/REPLACEMENT ACTIVITY As Required by the Provisions of ASME Code Section XI 1.Owner Exelon Generation Company (EGC) LLC (Name)200 Exelon Way, Kennett Square, PA., 19348 Address 2.PlantLaSalle County Nuclear Station Name 2601 N. 21St Rd.

Marseilles, U. 61341 Address Work Performed byMechanical Maintenance Name Mechanical Maintenance Address Identification of SystemHPCS (a)Applicable Construction Code-Sect.

1111974 Edition None Addenda, N/ACode Case (b)Applicable Edition of Section XI Used for Repair

/Replacement Activity- 2001 Edition, 2003 Add.(c)Applicable Section XI Code Case(s)

None Identification of Components Type Code Symbol N/A Authorization No.N/A Expiration DateN/A National Corrected, ASME Code Name of Component Name of Manufacturer Board Other Removed, or Stamped(Yes Manufacturer Serial No.

No.identification Year Built Installed or No)6" Pipe Ell Sch. 120 Morrison*N/A 1HP09A-6"*Removed Yes 6" Pipe Ell Sch. 120 ATC Nuclear 1640B N/A UTC 2956486 2000**Installed No 6" Pipe Sch. 120 Morrison*N/A 1HP09A-6"*Removed Yes 6" Pipe Sch. 120 Consolidated Ht. XW0327 N/A UTC 2851046 2010***Installed No 6" U-bolt Morrison*N/A HP09-1031X

• Removed No 6" U-bolt Anvil Ht. B-572 N/A UTC 2862544 2010****Installed No Description of Work Class 2 replacement,* =Per N-5 Code Data Report on file at LaSalle Sta.

Tests Conducted: Hydrostatic

[IPneumatic ElNormal Operating PressureExempt F1 Other q Pressure 1330 psiTest Temp.ambient ° F Remarks**=Code of Construction: Sect. 11189 Ed., No Add., Class 1 *** = Code of Construction Sect. III.

74 Ed., S75 Add. CL 2.****= Code of Construction Sect.111 74Ed., S74 Add., CL2. *****= Code of Construction Sect. III 2004 Ed., No Add., CL1.

CERTIFICATE OF COMPLIANCE We certify the statements made in the report are correct and this Replacementconforms to the Repair or replacement requirements of the ASME Code,Section XI.

Type of Code StampNone Certificate of Authorization Number N/A Expiration Date N/A Date Sheet, 4/8/2014 1of2 Unit01 W.O. #1635336 Repair Organization, P.O. No., Job No.,etc.

3.4.5.6.7.8.9.ISI Engineer Date4/8/2014 Owner or Owner's Desi a Title Signed CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB Global Standards of Hartford, Connecticut have inspectedthe components described in this Owner's Report during the periodto, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owner's Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising,from the connected with this inspection.

i.-_---CommissionsNB 13411 A N i CIL2146 IC (Inspector's Signature)

Date tC/ 9 2-<JV" FORM NIS-2 SUPPLEMENTAL SHEET 1.Owner:Exelon Generation Company (EGC) LLCSheet2of2 200 Exelon Way, Kenneth Square,Date4/8/2014 PA., 19348Unit 1 2.Plant:LaSalle County Station 2601 N. 21St. Rd.

Marseilles, Illinois 61341 3.Work Performed by: Mechanical Maint.Type Code Symbol StampN/A NameAuthorization No.N/A Mechanical MaintenanceExpiration DateN/A Address 4.Identification of System HPCS Class 2 5a.Applicable Construction Code Sect. 111 74EditionNo Addenda 5b.Applicable Edition of Section XI utilized 2 0 01 Edition 2003 Addenda 6.Identification of Components Repaired or Replaced and Replacement Components.

YearRepaired,ASME BuiltReplacedCode orStamped Replacement(Yes or No)W.O. # 1635336 P. O. No., WR No., etc.

Name of Component Name of Manufacturer ReplacedI N/A