ML062550112
| ML062550112 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 08/31/2006 |
| From: | Jamil D Duke Energy Corp |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML062550112 (24) | |
Text
PDuke OkEnergye D.M. JAMIL Vice President Catawba Nuclear Station 4800 Concord Rd. / CN01 VP York, SC 29745-9635 803 831 4251 803 831 3221 fax August 31, 2006 U.S. Nuclear Regulatory Commission Attention:
Document Control Desk Washington, D.C. 20555
Subject:
Duke Power Company LLC d/b/a Duke Energy Carolinas, LLC (Duke)
Catawba Nuclear Station, Unit 2 Docket Number 50-414 Steam Generator Outage Summary 180-Day Report for End of Cycle 14 Refueling Outage Pursuant to Technical Specification 5.6.8, please find attached the subject report which provides the results of the steam generator inspection effort associated with the subject outage.
There are no regulatory commitments contained in this letter or its attachment.
If you have any questions concerning this material, please call L.J. Rudy at (803) 831-3084.
Very truly yours, r-Q-
D. M. Jami LJR/s Attachment www. duke-energy. corn
Document Control Desk Page 2 August 31, 2006 xc (with attachment):
W.D. Travers, Regional Administrator U.S. Nuclear Regulatory Commission, Region II Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, GA 30303 Senior Resident Inspector U.S. Nuclear Regulatory Commission Catawba Nuclear Station J.F. Stang, Jr., Senior Project Manager (addressee only)
U.S. Nuclear Regulatory Commission Mail Stop 8-H4A Washington, D.C. 20555-0001
Page 1 of 22 Attachment Steam Generator Tube Inspection Report Catawba Unit 2 2006 Outage EOC 14 Technical Specification 5.6.8
Page 2 of 22 Steam Generator Tube Inspection Report Catawba Unit 2 2006 Outage EOC 14 Technical Specification 5.6.8 Prepared By:
Reviewed By:
Approved By:
AJ;6
.Date:
Date: 2 Date:
'o
Page 3 of 22 Number Steam Generator Tubes Inspected Catawba Unit 2 EOC14 Tech Spec 5.6.8a (Scope of Inspection):
The following describes the scope of the Inspection performed at Catawba Unit 2 for EOC-14 in March 2006:
A bobbin coil eddy current inspection was performed at Catawba Unit 2 EOC-14 in March 2006. The tubes selected for the bobbin inspection included tubes with previous indications, tubes on the periphery of the bundle two rows deep, tubes surrounding plugged tubes and a minimum sample of 20 % of remaining tubes including all tubes not inspected with bobbin since EOC -10. During the outage additional tubes were added to the inspection plan to bound possible loose parts identified by eddy current and visual inspection. The total tubes inspected by bobbin per steam generator can be found in Table 1.
The tubesheet region was inspected with the array probe. The tubes selected for the inspection included a 20 %
random sample, all periphery tubes, all of the historical overexpansions and 20 % of the newly identified overexpansions. Relative to the latter, there was a new criterion developed to more consistently identify overexpansions. The tubesheet inspection was performed from two inches above the top of tubesheet through the tube end. The total number of tubes inspected by the array probe in the tubesheet region per steam generator can be found in Table 1.
Small radius u bends were also inspected by the array. The tubes selected include a 20 % sample of rows one, two and ten. The tubes selected by the bobbin plan in row 3 and 4 were also inspected with the array. Row ten is the first row that was not stressed relieved after bending and was sampled for monitoring purposes. The total number of tubes inspected by the array in the u-bends per steam generator can be found in Table 1.
Bobbin coil indications of special interest were also inspected by the array probe. The indication selected for array special interest were degradation identified during the inspection (I-codes, PLP, and permeability variations), 50% of previously identified dents greater than two volts, new dents and new wvear. The number of tubes inspected for special interest per steam generator can be found in Table 1.
Preheater expansions were also inspected by the array probe. The tubes selected for the inspection include 20 % of the tubes expanded at the 17C and 18C tube support plate. The total number of tubes inspected by the array in this region per steam generator can be found in Table 1.
Tubes were inspected at baffle 18 C by the array probe. This region acts as a loose parts collector since it is at the bottom of the preheater. The total number of tubes inspected by the array probe in this region per steam generator can be found in Table 1.
Rolled plugs were inspected with a rotating coil probe on the hot leg. Twenty percent of the rolled plugs installed on the hot leg were inspected. The total number of tubes with rolled plug examinations per steam generator can be found in Table 1.
All plugs wvere inspected visually on both the hot and cold leg sides. The total number of plugged tubes visually inspected per steam generator can be found in Table 1.
There are 4578 tubes in each steam generator.
Page 4 of 22 Table 1 Tubes Inspected by Steam Generator By Inspection Plan Scope SG A SG B SG C SG D Bobbin 2508 2499 2376 2601 Tubesheet (array) 1508 1159 1091 1265 Small radius u 186 204 177 197 bends (array)__________________
Preheater 28 28 28 28 expansions at 17 C and 18C (array)_________
18 Cbaffle region 97 134 190 130 (array)_______
Special Interest of 560 359 362 521 bobbin (array)_________
Plug (rpc) 11 7
7 8
Plug (visual) 68 90 53 85 Tech Spec 5.6.8b (Active Degradation):
Service induced degradation identified in the Unit 2 Steam Generators includes wear at support structures, volumetric wear from foreign objects, and SCC in the tubesheet region. All SCC identified during EOC14 inspection was below the H* dimension of 17" and were not plugged as allowed with alternate repair criteria approved by Tech Spec amendment #224.
Tech Spec 5.6.8.c (NDE Techniques):
NDE techniques listed below are taken from the CNS 2E0C14 Degradation Assessment and represent techniques qualified for the CNS examination. The bobbin (B) rotating pancake (Pan) and array (XP) were the only probes utilized during the inspection.
Mechanism Location Probe ETSS Wear B
96004.2 rev 9 XP Site Qualified MBM's B
96001.1 Rev 10 Mechanism Location Probe ETSS OD IGA Freespan &
B 96007.1 rev 10 Non Dented TSP
@ Dents(See ODSCC)
Page 5 of 22 PWSCC Low Row U-bend XP 23513.2 rev 2 23513.3 rev 2 Expansion Transition 20500.1 rev 3 Xl' 20500.2 rev 3 20501.1 rev 3 20501.2 rev 3 Dents 20502.1 rev 3
(<2.00 volts @ support XP structures) 20502.2 rev 3 Mechanism Location Probe ETSS ODSCC
- 1. Roll Transition B
96008.1 rev 13 (Includes Plugs)
PAN 21401.1 rev 3
- 2.
TSP 21402.1 rev 3
- 3.
Tube Sheet
- 1. Roll Transition 20400.1 rev 4
- 2.
- 3.
Tube Sheet 20400.2 rev 4 Xl' 20402.1 rev 4
_____________________ ______________________20402.2 rev 4 Freespan B
96007.1 rev 10 XIP 20403.1 rev 4 Xl' 20403.2 rev 4 Pitting Presence of copper B
96005.1 rev 8 Probe Application B (Bobbin)
Used to provide volumetric examination to meet ASME Code requirements PAN (Rotating Pancake)
Used to provide:
(0. 115" or 0.080")
supplemental information for indications reported with a bobbin probe
+Pt (Rotating Plus Point) or qualified exams at specific areas of the tubing where bobbin is not considered a qualified technique for detection, i.e. roll transitions, low row u-bends, etc XP (Array X-Probe)
Non-surface riding probe consisting of an array of coils arranged
__________________________3600 around the probe body. Used to replace rotating coil exams.
Tech Spec 5.6.8.d (Location of Service Induced Indications)
A listing of all service induced indications reported during the unit 2 EOC14 tube inspection is included as attachments A -D.
Page 6 of 22 Tech Spec 5.6.8 (Number of Tubes Plugged)
Steam Generator 2A Tubes Plueeed EOC14 = I Total Tubes Plueeed = 69
% Plu~i2ed= 1.5 Tube Row Tube Column Repair Method Reason for plugging 17 82 Cold leg stabilized &
Preventative measure for an over-roll mch luged condition at top of tubesheet.
Steam Generator 2B Tubes Plugged EOC14 = 9 Total Tubes Plugged = 99
%Plugged= 2.16 Tube Row Tube Column Repair Method Reason for plugging 15 27 Mech plugged & Hot leg Loose Part, I1st TSP stabilized______________________
15 29 Mech plugged & Hot leg Loose Part, 1st TSP stabilized______________________
16 27 Mech plugged & Hot leg Loose Part, 1 st TSP stabilized 16 28 Mech plugged & Hot leg Loose Part, 1 st TSP stabilized 16 30 Mech plugged & Hot leg Loose Part, 1 st TSP
_____________stabilized 16 31 Mech plugged & Hot leg Loose Part, 1 st TSP
_____________stabilized 17 27 Mech plugged & Hot leg Loose Part, 1 st TSP stabilized 18 28 Mech plugged & Hot leg Loose Part, 1 st TSP
_____________stabilized 30 12 Mech plugged & Cold Cold Leg tube not expanded.
___________Leg tube Hard Rolled Steam Generator 2C Tub s Plugged EOC14 = 2 Total Tubes Plugged = 55
%plugged= 1.2 Tube Row Tube Column Repair Method Reason for plugging 7
109 Mech plugged & hot leg Loose Part, 4th TSP
____________ I______________stabilized__________________________
11 93 Mech plugged & Cold leg Preventative measure for an over-roll
_____________________stabilized condition at top of tubesheet
-Steam Generator 2D Tubes Plugged EOC14 = 2 Total Tubes Plugged = 87
%Plugged= 1.9 Tube Row Tube Column Repair Method Reason for plugging 1
57 Mech plugged & hot leg Preventative measure for tube expansion
__________stabilized geometry at top of tubesheet.
41 60 Mech plugged & Cold leg Preventative measure for an over-roll
_____________________stabilized condition at top of tubesheet
Page 7 of 22 Tech Spec 5.6.8.g (Results of Condition Monitoring, including tube pulls and In-situ test):
The evaluation was performed according to NEI 97-06 using the EPRI Tube Integrity Assessment Guidelines. The only observed tubing degradation at EOC 14 not exempted by alternate repair criteria was wear. All CM requirements were met. OA issues include a small population of tubes which were last inspected at EOC I11 and will not be inspected again until BOC 15 and growth of the wear scars left in service at BOC 14. Conservatively projected worst case depths meet the limiting 1.4 FLB structural integrity requirement of 3969 psi with at least 0.95 probability with 50% confidence. Since burst or leakage will not occur at 1.4 FLB, leakage integrity at an accident differential pressure of 2560 psi is also demonstrated.
No tube pulls or in-situ testing were performed during unit 2 EOC14.
Page 8 of 22 Landmark Sketch to assist in locating eddy current information reported in attachments A-D.
AV 1 AV4 0811 07H1 0611 0511 0411 0311 02H1 0111 iSH TEH D5 STEAM GENERATOR SPECIFICATIONS1 TUBE INFORMATION:
NO. OF TUBES =4578 MATERIAL = Inconel 600 NOMINAL DIA. = 0.750" NOMINAL WALL = 0.043" ROW 1 RADIUS = 2.250" STRAIGHT LENGTH = 305.0" TUBE PITCH = 1.0625" TUBE SUPPORT INF ORMATION:
TYPES = Drilled / Quatrafoil MATERIAL-=405 Stainless Steel THICKNESS = 0.75'7 1.12" AVB INFORMATION:
MATERIAL = Chrome Plated Inconel THICKNESS = 0.296" 10C liC 12C 13C 14C 15C 16C 17C 18C 19C
¶SC We NOTE: Dimensions are to the cente rline of the tube support structut s Tube Sheet Layout:
Page 9 of 22 ab r i r ( r a
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Column 114 Row 1 Column I Attachments:
A SG 2A Eddy Current Indications and Anomalies B
SG 2B Eddy Current Indications and Anomalies C
SG 2C Eddy Current Indications and Anomalies D
SG 2D Eddy Current Indications and Anomalies
Page 10 of 22 Attachment A SG 2A Eddy Current Indications and Anomalies Indication Codes SG-A Catawba Unit 2 D5 EOC14 Ind Type Description SAl Indication Single Axial Indication TWID Through Wall WAR Wear Note: The reported tube indications are for those that were determined to be active in that they are service related. All original baseline indications are not reported here.
Page I11 of 22 Active degradation for Steam Generator A SG ROW COL VOLTS DEG CHN IND
%/TW LOCATION UTIL 1 UTIL 2 A 7 23 1.59 65 10 SlTEH
+0.00 30 13 1.45 0
P4 TWD 19 AV3 0.09 WAR 30 23 0.89 0
P4 TWD 12 AV2 0.15 WAR 31 102 0.78 0
P4 TWD 10 AV4 -0.05 WAR 0.62 0
P4 TWD 11 AV2 -0.05 WAR 31 103 2.07 0
P4 TWD 24 AV2 -0.09 WAR 32 15 0.82 0
P4 TWO 13 AV2 0.03 WAR 33 14 0.41 0
P4 TWD 6
AV4 0.09 WAR 33 93 1.03 0
P4 TWD 16 AV2 0.05 WAR 33 99 0.53 0
P4 TWD 10 AV2 -0.08 WAR 33 100 1.33 0
P4 TWO 18 AV3 0.00 WAR 34 99 0.81 0
P4 TWO 13 AV4 0.00 WAR 0.62 0
P4 TWO 10 AV3 0.00 WAR 35 16 1.65 0
P4 TWO 21 AV3 0.15 WAR 1.19 0
P4 TWO 17 AV2 0.15 WAR 35 28 1.85 0
P4 TWD 23 AV3 0.00 WAR 37 17 1.19 0
P4 TWO 17 AV3 0.12 WAR 0.69 0
P4 TWO 11 AV2 0.09 WAR 37 27 1.01 0
P4 TWO 17 AV2 -0.03 WAR 37 39 0.63 0
P4 TWO 8
AV2 0.19 WAR 37 77 1.18 0
P4 TWO 17 AV4 0.00 WAR 1.41 0
P4 TWO 19 AV3 0.07 WAR 1.54 0
P4 TWO 20 AV2 0.19 WAR 38 17 1.18 0
P4 TWO 17 AV4 0.09 WAR 1.37 0
P4 TWO 18 AV3 0.17 WAR 1.15 0
P4 TWO 16 AM 0.03 WAR 38 21 1.31 0
P4 TWO 18 AV2 0.00 WAR 38 22 0.85 0
P4 TWO 13 AV3 -0.09 WAR 0.94 0
P4 TWO 14 AV2 -0.18 WAR 38 23 0.7 0
P4 TWD 11 AV2 0.08 WAR 38 25 0.9 0
P4 TWO 14 AV3 0.00 WAR 38 89 0.84 0
P4 TWO 14 AV3 -0.08 WAR 0.94 0
P4 TWO 15 AV2 0.08 WAR 38 91 0.87 0
P4 TWO 14 AV4 0.00 WAR 0.92 0
P4 TWD 15 AV2 0.00 WAR 0.41 0
P4 TWD 9
AV4 -0.05 WAR 0.9 0
P4 TWO 16 AV2 0.00 WAR 38 93 1.16 0
P4 TWO 17 AV2 -0.05 WAR 38 96 0.55 0
P4 TWO 10 AV4 -0.19 WAR 1.15 0
P4 TWO 17 AV3 0.00 WAR 2.8 0
P4 TWD 28 AV2 -0.24 WAR 38 97 1.18 0
P4 TWD 17 AV4 0.00 WAR 1.73 0
P4 TWO 22 AV3 -0.16 WAR 4.15 0
P4 TWO 35 AV2 0.00 WAR 38 98 0.73 0
P4 TWO 12 AV4 -0.08 WAR 0.99 0
P4 TWO 15 AV3 -0.05 WAR 1.19 0
P4 TWO 17 AV2 -0.16 WAR 39 21 0.71 0
P4 TWO 10 AV2 -0.03 WAR
Page 12 of 22 SG ROW COL VOLTS DEG CHN IND
%/TW LOCATION UTIL 1 UTIL 2 A
40 18 3.08 0
40 94 0.72 0
2.11 0
40 95 1.33 0
1.76 0
41 30 0.63 0
41 44 0.74 0
1.34 0
1.48 0
41 81 0.79 0
1.47 0
2.15 0
41 83 1.09 0
1.67 0
1.47 0
41 85 1.94 0
41 90 0.96 0
41 92 0.63 0
1.65 0
41 93 0.66 0
0.99 0
41 94 0.82 0
2.99 0
1.67 0
42 81 0.36 0
0.82 0
42 85 1.06 0
2.36 0
42 91 1.02 0
43 23 0.94 0
0.73 0
43 91 1.44 0
1.07 0
1.12 0
0.63 0
1.32 0
0.94 0
0.99 0
0.48 0
44 23 1.4 0
5.26 0
2.06 0
1.34 0
44 25 1.15 0
1.18 0
44 31 0.64 0
44 90 0.63 0
44 92 0.65 0
1.1 0
P4 TWD 30 AV3 0.00 WAR P4 TWD 12 AV4 0.00 WAR P4 TWD 25 AV2 -0.03 WAR P4 TWD 18 AV4 -0.03 WAR P4 TWO 22 AV2 0.00 WAR P4 TWO 10 AV2 0.03 WAR P4 TWO 11 AV3 0.00 WAR P4 TWD 17 AV2 0.06 WAR P4 TWD 18 AVi 0.00 WAR P4 TWO 13 AV4 0.00 WAR P4 TWO 20 AV3 0.00 WAR P4 TWO 25 AV2 0.00 WAR P4 TWD 16 AV4 0.00 WAR P4 TWO 21 AV3 0.00 WAR P4 TWD 20 AV2 0.00 WAR P4 TWO 23 AV3 0.00 WAR P4 TWO 15 AV3 0.00 WAR P4 TWO 10 AV4 -0.10 WAR P4 TWO 21 AV3 0.00 WAR P4 TWO 12 AV4 -0.05 WAR P4 TWO 15 AV3 0.00 WAR P4 TWO 13 AV4 -0.05 WAR P4 TWO 30 AV3 0.03 WAR P4 TWD 21 AV2 0.05 WAR P4 TWO 10 AV4 0.12 WAR P4 TWO 16 AV2 -0.25 WAR P4 TWO 19 AV3 0.00 WAR P4 TWO 28 AV2 0.00 WAR P4 TWO 16 AV3 0.00 WAR P4 TWO 15 AV2 0.12 WAR P4 TWO 10 AVi 0.00 WAR P4 TWO 19 AV4 0.00 WAR P4 TWO 16 AV3 0.00 WAR P4 TWO 17 AV2 0.00 WAR P4 TWO 11 AVi 0.00 WAR P4 TWO 20 AV4 -0.05 WAR P4 TWO 16 AV3 -0.03 WAR P4 TWO 17 AV2 0.08 WAR P4 TWO 10 AVi 0.05 WAR P4 TWO 19 AV4 0.13 WAR P4 TWO 38 AV3 0.00 WAR P4 TWO 24 AV2 -0.03 WAR P4 TWO 17 AM 0.14 WAR P4 TWD 17 AV3 0.09 WAR P4 TWO 17 AV2 0.09 WAR P4 TWO 8
AV2 0.12 WAR P4 TWO 10 AV3 0.00 WAR P4 TWO 11 AV4 0.00 WAR P4 TWO 16 AV3 0.00 WAR
Page 13 of 22 SG ROW COL VOLTS DEG A
45 26 2.34 0
0.9 0
45 90 1.19 0
45 91 1.9 0
1.11 0
1.15 0
47 27 2.7 0
1.05 0
48 85 0.96 0
0.7 0
48 86 0.53 0
0.51 0
49 35 0.68 0
49 70 0.67 0
CHN IND
%/TW LOCATION UTIL 1 UTIL 2 P4 TWD 26 AV3 0.12 WAR P4 TWD 13 AV2 0.00 WAR P4 TWO 17 AV3 0.00 WAR P4 TWD 23 AV4 0.00 WAR P4 TWD 16 AV3 -0.05 WAR P4 TWD 17 AV2 -0.03 WAR P4 TWO 29 AV3 -0.04 WAR P4 TWO 18 AV2 -0.03 WAR P4 TWO 15 AV4 0.00 WAR P4 TWO 12 AV3 0.00 WAR P4 TWO 13 AV4 0.00 WAR P4 TWO 12 AV3 0.00 WAR P4 TWO 10 M~
0.07 WAR P4 TWO 12 M~
0.00 WAR
Page 14 of 22 Attachment B SG 2B Eddy Current Indications and Anomalies Indication Codes SG -B Catawba Unit 2 D5 EQC14 Ind Type Description CHG Change in Indication MAI Indication Multiple Axial Indication NEX Anomaly No Expansion NQI Indication Non-Quantifiable Indication OR Data Quality SAl Indication Single Axial Indication SCI Indication Single Circumferential Indication SVI Indication Single Volumetric Indication TWO Through Wall WAR Wear These codes are used in the following eddy current report for steam generator 2B.
Note: The reported tube indications are for those that were determined to be active in that they are service related. All original baseline indications are not reported here.
Page 15 of 22 Active degradation for Steam Generator B SG ROW COIL VOLTS DEG CHN IND
%/TW LOCATION B
1 21 10.82 15 94 SC!
TEH
+0.03 1
42 7.68 28 70 MAI TEH
+0.09 1
91 5.76 58 182 SAl TEH
+0.09 2
32 1.67 24 158 MAI TEH
+0.12 2
70 3.11 31 166 SAl TEH
+0.30 2
82 3.44 17 26 SAl TEH
+0.03 2
83 2.57 18 38 SAI TEH
+0.03 3
21 9.81 24 162 SAl TEH
+0.06 3
29 6.35 39 162 SAl TEH
+0.35 3
55 4.56 129 170 SAl TEH
+0.04 4
34 3.38 21 150 SAl TEH
+0.27 5
31 2.45 17 38 SAl TEH
+0.04 5
82 6.74 15 122 SAI TEH
+0.07 6
81 1.41 42 26 SAI TEH
+0.24 6
82 2.01 62 170 SAl TEH
+0.07 9
76 8.22 9
38 SAl TEH
+0.09 TO+0.23 10 81 3.29 28 162 SAl TEH
+0.06 11 82 1.06 18 146 SAl TEH
+0.10 12 82 1.06 25 122 SAI TEH
+0.06 12 92 3.46 35 182 SAl TEH
+0.06 14 81 1.21 18 58 SAl TEH
+0.24 15 27 0.28 98 54 SVI 01H
+0.64 15 29 0.88 145 134 SVI 01 H
+0.51 15 56 1.22 0
P4 TWID 19 AV4 0.24 16 27 1
107 58 SVI 01H
+0.59 0.41 132 10 SVI 01H
+0.47 0.79 115 P1 NQI 01H 0.59 16 28 0.47 122 P1 N0I 01H 0.40 0.82 88 118 SVI 01H
+0.52 16 30 0.33 110 P1 NQI 01H 0.49 0.85 132 6
SVI 01H
+0.54 16 31 0.28 86 158 SVI 01H
+0.64 20 32 3.9 16 158 SAl TEH
+0.05 24 63 3.29 15 70 SAl TEH
+0.10 25 31 1.57 40 26 SAl TEH
+0.06 27 60 1.71 0
P4 TWOD 22 AV2 0.24 30 12 3.11 32 193 NEX TEC 1.OOTO 21.20 30 21 0.68 61 10 SAl TEH
+0.06 30 104 0.75 0
P4 TWOD 13 AV3 0.12 0.64 0
P4 TWOD 11 AVi
-0.03 32 103 1.01 0
P4 TWID 17 AV4 0.08 0.85 0
P4 TWOD 15 AV3 0.11 0.92 0
P4 TWID 16 AV2 0.19 36 98 0.74 0
P4 TWOD 13 AV4 0.00 36 99 0.5 0
P4 TWOD 11 AV4 0.06 37 99 0.94 0
P4 TWOD 16 AV4 0.15 38 75 0.82 0
P4 TWOD 15 AV2 0.00 39 59 0.3 0
P4 TWOD 7
AV4 0.00 44 91 1.17 0
P4 TWOD 19 AV2 0.00 UTIL 1 UTIL 2 WAR CHG WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR OR
%TW B
4-5 24T 0.52 0
P4 TWD 11 47 27 1.02 0
P4 TWD 16 1.47 0
P4 TWD 20 0.47 0
P4 TWD 10 LOCATION AV4 -0.03 AV4 0.00 AV3 0.03 AV2 -0.06 AV4 0.00 AV2 0.00 Page 16 of 22 IJTIL 1 UTIL 2 WAR WAR WAR WAR WAR WAR 47 88 0.81 0
0.86 0
P4 TWD 14 P4 TWD 15
Page 17 of 22 Attachment C SG 2C Eddy Current Indications and Anomalies Indication Codes SG -C Catawba Unit 2 D5 EOC14 Ind Type Description CHG Change in Indication NQI Indication Non-Quantifiable Indication SAl Indication Single Axial Indication SVI Indication Single Volumetric Indication TWD Through Wall VOL Volumetric
'WAR Wear These codes are used in the following eddy current report for steam generator 2C.
Note: The reported tube indications are for those that were determined to be active in that they are service related. All original baseline indications are not reported here.
Page 18 of 22 Active degradation for Steam Generator C SG ROW COL VOLTS DEG CHN IND
%/TW LOCATION UTIL 1 UTIL 2 C
1 19 2.58 26 3
51 6.2 167 7
109 0.82 84 1.23 127 27 9
2.62 0
28 10 1.01 0
28 11 0.8 0
28 105 1.23 0
29 10 0.8 0
0.75 0
29 12 0.84 0
1.13 0
29 14 0.81 0
30 15 1.4 0
31 11 0.62 0
31 12 1.65 0
33 12 1.37 0
1 0
33 14 1.02 0
1.72 0
33 55 1.77 0
33 100 0.77 0
33 102 0.7 0
36 25 0.42 0
36 37 0.41 0
36 98 1.08 0
38 17 0.59 0
1.47 0
0.65 0
38 23 0.53 0
0.58 0
38 34 0.8 0
38 97 1.16 0
38 99 3.33 0
1.13 0
39 17 0.52 0
39 18 1.19 0
39 27 0.96 0
0.76 0
39 94 1.23 0
39 97 0.97 0
0.51 0
0.74 0
40 20 1.67 0
40 22 0.61 0
40 27 0.95 0
41 20 0.51 0
0.63 0
0.65 0
58 SAI TEH
+0.25 146 SAl TEH
+0.09 186 SVI 04H
-0.75 195 NO[
04H -0.89 CHG P4 TWO 26 AV2 -0.03 WAR P4 TWD 15 AV2 0.00 WAR P4 TWD 12 AV2 -0.08 WAR P4 TWD 18 AV3 0.00 WAR P4 TWO 13 AV3 -0.05 WAR P4 TWO 12 AV2 -0.15 WAR P4 TWD 13 AV3 0.08 WAR P4 TWD 16 AV2 0.03 WAR P4 TWO 13 AV3 -0.08 WAR P4 TWO 18 AV4 0.15 WAR P4 TWD 9
AM 0.03 WAR P4 TWD 21 AV3 0.14 WAR P4 TWD 19 AV2 -0.13 WAR P4 TWD 16 AVI 0.00 WAR P4 TWO 15 AV3 -0.08 WAR P4 TWO 22 AV2 -0.13 WAR P4 TWO 23 AV3 0.00 WAR P4 TWO 13 AV2 0.14 WAR P4 TWO 12 AV2 0.13 WAR P4 TWD 8
AV2 0.03 WAR P4 TWD 9
AV2 0.06 WAR P4 TWO 16 AV2 0.11 WAR P4 TWO 9
AV4 -0.05 WAR P4 TWO 18 AV2 -0.08 WAR P4 TWD 10 M~
0.00 WAR P4 TWD 10 AV4 0.05 WAR P4 TWO 11 AV2 0.00 WAR P4 TWD 14 AV2 0.30 WAR P4 TWO 18 AV2 -0.05 WAR P4 TWO 31 AV4 0.21 WAR P4 TWD 17 AV3 0.02 WAR P4 TWD 9
AM 0.00 WAR P4 TWO 18 AV2 -0.03 WAR P4 TWO 15 AV3 -0.03 WAR P4 TWO 13 AV2 0.21 WAR P4 TWO 18 AV3 0.00 WAR P4 TWD 16 AV4 0.00 WAR P4 TWD 11 AV3 0.00 WAR P4 TWD 14 AV2 0.00 WAR P4 TWD 23 AV2 -0.05 WAR P4 TWO 12 AV2 -0.05 WAR P4 TWO 15 AV2 0.05 WAR P4 TWO 10 AV3 0.05 WAR P4 TWO 12 AV2 -0.03 WAR P4 TWO 12 AVi
-0.03 WAR
Page 19 of 22 SG ROW COL VOLTS DEG CHN IND
%/TW LOCATION UTIL 1 UTIL 2 C
43 93 0.48 0
P4 TWID 10 AV4 0.00 WAR 0.39 0
P4 TWD 9
AV3 0.00 WAR 0.83 0
P4 TWID 15 AV2 0.00 WAR 44 81 0.55 0
P4 TWD 12 AV4 0.00 WAR 2.75 0
P4 TWID 29 AV2 0.30 WAR 1.48 0
P4 TWD 21 AV3 0.27 WAR 48 48 0.62 77 P19 VOL M~
+0.00 WAR 0.88 143 P2 VOL AV4
+0.00 WAR 49 59 1.48 102 P30 TWID 21 13C
+0.00 WAR 2.55 117 P23 VOL 13C
+0.34 WAR 2.61 0
P2 NOI 130 0.28 WAR 49 76 1.99 0
P4 TWD 26 AVi 0.00 WAR
V Page 20 of 22 Attachment D SG 2D Eddy Current Indications and Anomalies Indication Codes SG-D Catawba Unit 2 D5 EOC14 Ind Type Description MAI Indication Multiple Axial Indication NQI Indication Non-Quantifiable Indication SCI Indication Single Circumferential Indication TWD Through Wall VOL Indication Volumetric WAR Wear These codes are used in the following eddy current report for steam generator 2D).
Note: The reported tube indications are for those that were determined to be active in that they are service related. All original baseline indications are not reported here.
Page 21 of 22 SG ROW COL VOLTS D
25 107 2.06 0.77 27 107 1.49 28 10 0.92 0.65 28 16 1.87 28 71 1.79 28 105 1.49 29 104 1.02 30 102 2.43 33 13 1.13 2.3 1.54 33 79 1.09 34 98 1.82 34 99 1.22 34 100 1.11 35 14 1.5 4.84 35 17 6.55 35 43 4.29 35 96 0.54 36 16 1.35 1.12 4.82 1.37 36 65 2.31 36 93 1.22 36 94 1.06 0.61 36 96 0.77 1.48 36 97 1.59 36 98 1.32 37 17 1.71 1.67 38 18 2.24 2.56 38 19 1.41 38 20 1.72 1.5 38 21 1.51 38 26 1.08 38 64 1.99 38 78 1.82 38 90 1.06 38 93 2.53 0.89 39 81 0.87 ive degradation for Steam Generator]I DEG CHN IND
%/TW 0 P4 TWO 18?
0 P4 TWD 8?
0 P4 TWD 141 0 P4 TWD 10?A 0 P4 TWD 8?P 0 P4 TWD 171 0 P4 TWD 18?
0 P4 TWO 14?
0 P4 TWO 10?
0 P4 TWD 21?1 0 P4 TWD 12?
0 P4 TWD 20?
0 P4 TWO 15?
0 P4 TWD 11?
0 P4 TWO 18/
0 P4 TWD 13?
0 P4 TWD 12?
0 P4 TWD 15?
0 P4 TWD 32?
43 98 SC1 1
135 98 SCI 1
0 P4 TWD 6?
0 P4 TWD 13?
0 P4 TWO 11?
0 P4 TWD 31?
0 P4 TWD 13/
0 P4 TWD 20/
0 P4 TWD 13?
0 P4 TWD 11?
0 P4 TWO 7?
0 P4 TWO 9?
0 P4 TWD 15?
0 P4 TWO 15/
0 P4 TWO 14?
0 P4 TWO 17/
0 P4 TWO 17/
0 P4 TWD 19/
0 P4 TWO 21/
0 P4 TWO 13/
0 P4 TWO 16/1 0 P4 TWO 14/
0 P4 TWO 141 0 P4 TWO 11 /
0 P4 TWO 17/
0 P4 TWO 17/
0 P4 TWO 12/
0 P4 TWO 21/
0 P4 TWD 101 0 P4 TWO 10?
LOCATION UTIL 1 UTIL 2 N2 V3C
~V2
~V4
~V3 V3C NV2
~V2
~V3
.V4
~V2 EH EH
.V2 W4 W2 LV3
~V2
~V2 kWi W2
\\V4
\\V2 V4 W2 V2 V4
\\V2 V2
\\V2
\\V2
\\V3 W2 W2 V3 V2 0.00 0.00 0.27 0.00 0.00
-0.47
-0.31 0.00 0.10 0.09 0.00 0.00 0.00
-0.03 0.00 0.09
-0.03 0.00 0.00
+0.31
+0.42 0.09 0.00
-0.06 0.00 0.00 0.33 0.03 0.00 0.00 0.00
-0.03 0.00 0.06 0.00
-0.03 0.00 0.14 0.09 0.00 0.00 0.00 0.38 0.00
-0.12
-0.12 0.00 0.06 0.21 WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR WAR
J Page 22 of 22 SG ROW COL VOLTS DEG CHN IND D
39 96 1.4 39 98 0.95 40 93 1.09 40 94 1.52 1.54 40 97 0.93 0.85 41 20 1.46 41 59 4.57 2.83 41 60 3.35 2.82 41 77 0.77 2.04 42 23 1.49 2.63 42 30 1.48 42 32 1.47 42 64 1.01 3.05 42 85 1.04 1.21 43 22 2.29 0.98 3.37 43 29 1.2 43 78 4.58 2.58 0.89 44 24 1.65 44 46 2.22 44 90 0.43 44 91 0.71 45 52 2.32 45 91 0.76 0.62 47 87 0.85 48 78 4.52 48 82 0.86 49 37 0.69 49 74 1.08 49 84 0.67 0 P4 TWD 0 P4 TWD 0 P4 TWD 0 P4 TWD 0 P4 TWD 0 P4 TWID 0 P4 TWID 0 P4 TWID 33 138 MAI 11 34 SCI 81 138 MAI 14 46 SCI 0 P4 TWID 0 P4 TWD 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 110 58 VOL 98 P2 NOt 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P2 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWID 0 P4 TWD 0 P4 TWD 0 P4 TWD 0 P4 TWID 0 P4 TWID
%TW LOCATION UTIL 1 UTIL 2 14 AV3 0.00 WAR 10OAVi 0.12 WAR 12 AV2 0.15 WAR 15 AV3 0.17 WAR 16 AV2 0.00 WAR 10 AV3 -0.06 WAR 10 AVi 0.06 WAR 15 AV4 0.00 WAR TEH
+0.37 TEH'
+0.77 TEH
+0.31 TEH
+0.55 9 AV3 -0.03 WAR 19 AV2 0.24 WAR 14 AV4 0.00 WAR 21 AV2 0.00 WAR 14 AV2 0.30 WAR 14 AV2 0.15 WAR 13C
-0.15 13C 0.06 WAR 11 AV3 -0.03 WAR 13 AV2 0.03 WAR 21 AV4 0.00 WAR 11 AV2 0.00 WAR 26 AV3 0.00 WAR 13 AV2 0.00 WAR 31 AV3 0.00 WAR 22 AV2 -0.06 WAR 9 AV1 0.18 WAR 15 AV3 -0.25 WAR 20 AV3 -0.21 WAR 5 AVi 0.00 WAR 8 AV4 0.21 WAR 18 150 -0.46 WAR 9 AV4 0.00 WAR 7 AV2 0.21 WAR 9 AV4 0.10 WAR 31 AV4 -0.31 WAR 9 AVi 0.00 WAR 10 AVI
-0.03 WAR 12 AV4 0.24 WAR 8 AV1 0.13 WAR