ML18010A858

Forwards Summary of ECCS Outage Times Covering 5-yr Period Commencing W/Issuance of Low Power OL on 861024 & Ending on 911023 to Address NUREG-0737,Item II.K.3.17, Rept on Outages of ECCS Sys

ML18010A858
Person / Time
Site:	Harris
Issue date:	10/22/1992
From:	Mccarthy D CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.K.3.17, TASK-TM NLS-92-288, NUDOCS 9210280283
Download: ML18010A858 (40)

Text

,~cczr.za.hr~a Orsra.~am rOW ozivro~, a.~now SvSIZrvr REGULBTZ ZNFORMBTZON DZSTRZBUTZON ZSTEM (RZDS)

ACCES~IOP /BR:9210280283 DOC.DATE: 92/10/22 NOTARIZED: NO FACIL:50-400 Shearon Harris Nuclear Power Plant, Unit 1, Carolina AUTH.NAME AUTHOR AFFILIATION MCCARTHY,D.C.

Carolina Power a Light Co.

RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

DOCKET 05000400

SUBJECT:

Forwards summary of ECCS outage times covering 5-yr period commencing w/issuance of low power OL on 861024

& ending on 911023 to address NUREG-0737,Item II.K.3.17, "Rept on Outages of ECCS Sys."

D DISTRIBUTION CODE:

A003D COPIES RECEIVED:LTR I

ENCL

(

SIZE:

t TITLE: OR/Licensing Submittal:

Suppl 1 to NUREG-0737(Generic Ltr 82-33)

NOTES:Application for permit renewal filed.

05000400 i RECIPIENT ID CODE/NAME PD2-1 LA LE,N INTERNAL: NRR/DLPQ/LHFB11 PE 01 EXTERNAL: NRC PDR COPIES LTTR ENCL 1

1 2

2 1

1 1

1 1

1 RECIPIENT ID CODE/NAME PD2-1 PD OC/LFMB RES/DSIR/EIB NSIC COPIES LTTR ENCL 1

1 1

0 1

1 1

1 NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK.

ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

S TOTAL NUMBER OF COPIES REQUIRED:

LTTR 10 ENCL 9

I

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@ME Carolina Power 8 Light Company OCT 32 1992 SERIAL:

NLS 288 United States Nuclear Regulatory Commission ATTENTION:

Document Control Desk Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT DOCKET NO. 50-400/LICENSE NO. NPF-63 NUREG-0737, Item II.K.3.17; REPORT ON OUTAGES OF ECCS SYSTEMS Gentlemen:

NUREG-0737, "Post TMI-Requirements,"

Item II.K.3.17 "Report on Outages of Emergency Core-Cooling Systems Licensee Report and Proposed Technical Specification Changes" dated October 31, 1980, requires licensees and applicants to submit an Emergency Core Cooling System (ECCS) outage history for a five year period.

The attached data represents a summary of the Shearon Harris Nuclear Power Plant (SHNPP)

ECCS outage times (component and system).

The data covers the five year period commencing with the issuance of the low power operating license on October 24, 1986 and ending October 23, 1991. It includes required maintenance and surveillance testing and was obtained from Equipment Inoperable Records and the Surveillance Test Scheduling System (STSS).

The data obtained from STSS for duration is estimated based on average performance time.

Attachment 1 provides the:

a) Outage dates and durations (in hours) b) Cause of each outage c)

ECC System or components involved d) Corrective actions, as applicable Attachment 2 is a glossary of terms and abbreviations used in Attachment l.

Safety system availability is tracked and reported monthly to the Institute of Nuclear Power Operations (INPO) in accordance with the guidance provided by INPO.

Improvements have been accomplished in recent years by scheduling testing and maintenance outages concurrently.

Carolina Power

& Light Company (CP&L) is committed to ensure the highest safety system availability and performance possible, given the necessary preventive maintenance, corrective maintenance, and required surveillance test:s.

Carolina Power

& Light Company has reviewed the availability of ECCS systems and components and concludes that no Technical Specification changes are warranted.

28062g

'7210280283 921022 PDR ADOCK 05000400 P

PDR

'-ayettevilte Street

~ P. O. 8ox 1551 o Raleigh, N. C. 27602

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$ W

Document Control Desi~

'~ ~VLS-92-288 / Page 2

This report fulfills CPGL's commitment as documented in the SHNPP Final Safety Analysis Report for NUREG-0737, Item II.K.3.17.

Questions regarding this matter may be referred to Mr. R.

W. Prunty at (919) 546-7318.

Yours very truly, D.

C. McCarthy Manager Nuclear Licensing Section SDC/sdc cc:

Mr. S.

D. Ebneter Mr. N. B. Le Mr. J.

E. Tedrow

~

~

I

Page 1

ATTACHMENT 1 DATE DURATION CAUSE SYSTEH/COHPONENT CORRECTIVE ACTION 10/24/86 10/24/86 10/27/86 10/27/86 10/27/86 11/07/86 11/07/86 11/11/86

'I1/11/86 11/11/86 11/13/86 11/13/86 11/18/86 11/19/86 12/01/86 12/10/86 12/21/86 12/25/86 12/25/86 01/04/87 01/04/87 01/08/87 01/20/87 01/21/87 01/22/87 01/23/87 01/25/87 02/09/87 02/10/87 02/20/87 02/21/87 02/21/87 03/09/87 03/22/87 03/23/87 03/29/87 03/29/87 04/06/87

'I ~ 50 OST-'1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1086 18-SB EDG OPERABILITY SEHIANNUALLY 1.50 OST-1823 1A-SA EDG OPERABILITY 18 MONTH 1.50 OST-1823 1A-SA EDG OPERABILITY 18 MONTH 1.50 OST-1085 1A-SA EDG OPERABILITY SEMIANNUALLY 1 ~ 50 OST-1085 1A-SA EDG OPERABILITY SEHIANHUALLY 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST.1824 1B-SB EDG OPERABILITY 18 HONTH 1.50 OST-1824 1B-SB EDG OPERABILITY 18 HONTH 1.50 OST-1086 1B-SB EDG OPERABILITY SEHIANNUALLY 1.50 OST-1823 1A-SA EDG OPERABILITY 18 HONTH 1.50 OST-1823 1A-SA EDG OPERABILITY 18 MONTH 0.97 A CSIP INOP FOR MAINTENAHCE 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1085 1A-SA EDG OPERABILITY SEMIANNUALLY 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1 ~ 50 OST-1073 18-SB EDG OPERABILITY HONTHLY INTERVAL 0.50 OST-'1008 RHR PUHP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RHR PUHP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RHR PUMP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RHR PUHP OPERABILITY QUARTERLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 5.92 PLACED IN MAIN'IENANCE TO SUPPORT S/U TESTING 8.58 AH-10A UNIT WAS INOPERABLE 0.92 8 CHILLER FAILED TO START 5.25 RWST USED FOR EPT-039T, LEVEL BELOW T ~ S. LIMIT 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 5.33 8 CHILLER INOP DUE TO LOW LUBE OIL WITH A CHILLER INOP 8.75 INOPERABLE TO INSPECT GE TYPE HFA RELAYS 1.50 OST-1086 1B-SB EDG OPERABILITY SEHIANHUALLY 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 1'0 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 0.50 OST-1008 RHR PUHP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RHR PUHP OPERABILITY QUAR'IERLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL EDG EDG EDG EDG EDG EDG EDG EDG EDG EDG EDG EDG ECCS EDG EDG EDG EDG ECCS

~ ECCS ECCS ECCS EDG EDG EDG ECCS ECCS ECCS EDG ECCS EDG EDG EDG EDG EDG EDG ECCS ECCS EDG B EDG 8

EDG A EDG A EDG A EDG A EDG A EDG B EDG B EDG 8

EDG A EDG A EDG A CSIP 8

EDG A EDG A EDG B EDG 8

RHR A RHR A RHR 8 RHR A EDG 8

EDG A EDG C CSIP/AH-10A 8 CSIP/ESCWC RWST A EDG 8 CSIP/ESCWC A EDG 8

EDG B EDG A EDG 8

EDG A EDG A RHR B RNR A EDG PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST

'PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST COMPLETE MAINTENANCE AND TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST COMPLETE SCHEDULED TEST COMPLETE SCHEDULED TEST COHPLETE SCHEDULED TEST COHPLETE SCHEDULED TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST COHPLETE S/U TESTING COHPLETE CORRECTIVE MAINTENANCE REFERENCE LER 87-006 FOR CORRECTIVE ACTION RESTORE LEVEL ABOVE TS LIMIT PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST REFERENCE LER 87-007 FOR CORRECTIVE ACTION COHPLETE INSPECTION AND TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST COMPLETE SCHEDULED TEST COHPLETE SCHEDULED TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST

& 2 POST-TEST

g ~

Page 2

ATTACHMENT 1 DATE DURATION CAUSE SYSTEM/COMPONENT CORRECTIVE ACTION 04/20/87 04/23/87 05/07/87 05/07/87 05/07/87 05/18/87 05/19/87 05/20/87 05/22/87 05/22/87 06/07/87 06/07/87 06/12/87 06/12/87 06/21/87 06/23/87 07/02/87 07/08/87 07/08/87 07/?3/87 07/23/87 08/06/87 08/06/87 08/06/87 08/08/87 08/09/87 08/09/87 08/23/87 09/08/87 09/10/87 09/11/87 09/11/87 09/20/87 09/22/87 09/22/87 09/23/87 10/09/87 10/09/87

'I.25 C CSIP INOP DUE TO HISPOSITIONED ALT. MINI FLOW VALVES 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 8.23 FAILURE OST-1085 DUE TO TIHE ARB FOR FREQ TO REACH REQUIRED BAND 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST 1085 1A-SA EDG OPERABILITY SEMIANNUALLY 4.83 CHANGE OIL IN PUHP 6 50 CHANGE LUBE OIL~ INSPECT ~ TIGHTEN FITTINGS ON OIL LINES 1 ~ 07 VALVED OOS TO ALLOW TESl'ING OF CSIP 8 0.08 BARRING DEVICE INSTALLED 1.50 OST-1073 18-SB EDG OPERABILITY MOHTHLY IHTERVAL 9.09 MISSED AIR ROLL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 0.50 OST-1008 RHR PUHP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RNR PUMP OPERABILITY QUARTERLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY HONTHLY INTERVAL 1 ~ 50 OST-1073 1B-SB EDG OPERABILITY MON'INLY INTERVAL 0.95 INADVERTANTLYDRAINED RWST LEVEL BELOW T.S. LIMIT 1 ~ 50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MOHTHLY INTERVAL 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1086 1B-SB EDG OPERABILITY SEHIAHNUALLY 0.50 OST-1008 RHR PUHP OPERABILITY QUARTERLY INTERVAL F 50 PERFORMANCE OF EPT-072 AND MPT-10032 0.50 OST-1008 RHR PUMP OPERABILITY QUARTERLY INTERVAL 6.42 BKR 106 WOULD HOT CLOSE FROM CONTROL PANEL 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL F 50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 0.32 INOPERABLE TO PERFORM OST-1008 0.50 OST-1008 RHR PUHP OPERABILITY QUARTERLY IHTERVAL 0.50 OST-1008 RNR PUMP OPERABILITY QUARTERLY INTERVAL 21.70 A DG TRIPPED ON HIGH VIBRATION DURING OST-1823 1.50 OST-1823 1A-SA EDG OPERABILITY 18 MONTH 1.50 OST-1823 1A-SA EDG OPERABILITY 18 MONTH 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1085 1A-SA EDG OPERABILITY SEHIANHUALLY ECCS EDG EDG EDG EDG ECCS ECCS ECCS EDG EDG EDG EDG ECCS ECCS EDG EDG ECCS EDG EDG EDG EDG ECCS ECCS ECCS EDG EDG EDG EDG EDG ECCS ECCS ECCS EDG EDG EDG EDG EDG EDG C CSIP B EDG A EDG A EDG A EDG A CSIP C CSIP 8 CSIP A EDG B EDG 8

EOG A EDG A RHR 8 RKR A EDG 8

EDG RWST B EDG A EDG 8

EOG 8

EDG B RHR 8 RHR/1RH-63 A RHR A EDG B EDG A EDG 8

EDG A EDG 8

RHR PUMP' RHR 8

RHR A EDG A EDG A EDG 8

EDG A EDG A EDG REFERENCE LER 87-023 FOR CORRECTIVE ACTION PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST COMPLETE RETEST PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST COMPLETE MAINTENANCE ACTIVITY COMPLETE MAINTENANCE ACTIVITY COMPLETE TEST COMPLETE INSTALLATION OF BARRING DEVICE PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST REFERENCE LER 87-033 FOR CORRECTIVE ACTION PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST COMPLETE SCHEDULED TEST COMPLETE SCHEDULED TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST COMPLETE FILL OF R'WST BACK INTO T.S. LIMIT PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST COMPLETE SCHEDULED TEST COMPLETE PERIODIC TESTS COMPLETE SCHEDULED TEST COMPLETE REPAIR OF BKR 106 PERFORM 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST COHPLETE SURVEILLANCE TEST OST-1008 COMPLETE SCHEDULED TEST COMPLETE SCHEDULED TEST RECALIBRATE A DG VIBRATION SWITCH PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TESj' 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST

~ t

Page 3 ATTACHMENT 1 DATE DURATION CAUSE SYSTEH/COMPONENT CORRECTIVE ACTION 10/15/87 10/16/87 10/22/87 10/31/87 11/08/87 11/09/87 11/10/87 11/16/87 11/16/87 11/17/87 11/18/87 11/24/87 11/24/87 12/02/87 12/10/87 12/16/87 12/16/87 12/22/87 12/23/87 12/28/87 01/04/88 01/10/88 01/11/88 01/13/88 01/14/88 01/14/88 01/14/88 01/15/88 01/18/88 01/20/88 01/20/88 01/22/88 02/01/88 02/06/88 02/08/88 02/15/88 02/15/88 02/17/88 INOP F SEQUENCER 0.33 LOSS OF ALL RKR DURIKG VALVE TESTING 1.50 OST-1824 18-SB EDG OPERABILITY 18 HOHTH 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1073 18-SB EDG OPERABILIT'Y MONTHLY INTERVAL 2.75 IKOP 1

EXHST FAN TO PROVIDE VENT FOR FUEL OIL TRNS PMP 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 11.67 1CS-746 FAILED CLOSED DUE TO LIMIT SMITCH FAILURE 20.50 WC-28 CHILLER INOP 0.20 KCR-87-'132 ON CSIP MIKIFLOW WIRING 1CS-196 51.50 ES'W TRAIN 8 INOP FAILED PART OF OST-1215 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 19.00 1CC-167 WILL NOT STROKE FULLY OPEH FROM MCB 24.50 1SW-270 MOV TRIPPED ON START OF A ESW PUMP 1 ~50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 0.50 OST 1008 RKR PUMP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RHR PUMP OPERABILITY QUARTERLY INTERVAL 1.50 OST-1073 1B-SB EDG OPERABILITY MOHTKLY INTERVAL 8.25 INSPECT BEARIHGS ON AH-5-SB 2.50 SUMP COVER REMOVED TO PUMP DOWN SUMP 1.87 PUHP SUMP COVER REMOVED 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 PUMP DOWH 8 CONTAINHEHT RECIRC SUMP 8.20 CHANGE OIL IN MOTOR BEARINGS 18.50 REMOVE PLUG FROM FLANGE AND STOP LEAK ON HEAT EXCHANGER 0.50 OST-1008 RHR PUMP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RKR PUMP OPERABILITY QUARTERLY INTERVAL 3.75 CLEAN STRAINER 8 FILTER ON PUMP B SPEED INCREASER 1.50 PUMP DOWN THE RECIRCULATION SUMP 1.50 OST-1086 18-SB EDG OPERABILITY SEHIANNUALLY 1.50 OST-1073 1B-SB EDG OPERABILITY MOHTHLY INTERVAL 1.08 REMOVAL OF INDICATOR TO INSPECT STEM NUT PER MPT-M0082 3.75 PUMP DOWH THE RECIRCULATION SUMP 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 21.47 PLACED UNDER SF CLEARANCE AS A RESULT OF ESW PUMP BEING 1.43 PUHP DOWH THE RECIRCULATION SUHP 0.92 CHANGE DIFFERENTIAL RELAY 38.42 ESW PUMP FAILED TO START DURING INADVERTENT ACTUATION 0 ECCS EDG EDG EDG EDG EDG ECCS ECCS ECCS EDG EDG EDG ECCS EDG EDG ECCS ECCS EDG ECCS ECCS ECCS EDG ECCS ECCS ECCS ECCS ECCS ECCS

• ECCS EDG EDG ECCS ECCS EDG EDG ECCS EDG EDG A RHR-8 EDG A EDG 8

EDG B EDG A EDG A CSIP/1CS-746 8 CSIP 8 CSIP B EDG A EDG 8

EDG 8

RKR A EDG A EDG A RKR 8

RHR B EDG B RHR/AH-5B 8

RKR 8 RKR A EDG 8

RHR 8 CSIP A RKR HX 8

RHR A RKR A CSIP 8 RKR PUMP 8

EDG 8

EDG A CSIP/1CS-746 B RKR A EDG 8 EDG/ES'W 8 RKR A EDG 8 EDG/ESW REFEREKCE LER 87-060 FOR CORRECTIVE ACTION PERFORM 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST F 2 POST-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST F 2 POST-TEST RECALIBRATE FLOW SWITCH AKD RESTORED EXKST FAH PERFORM 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST COMPLETE HAIHTENANCE ON SWITCH RAN CHILLER MANUALLY STROKED VALVE COMPLETE MODIFICATION COMPLETE CORRECTIVE MAINTENANCE PERFORH 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST COMPLETE CORRECTIVE MAINTENANCE COMPLETE CORRECTIVE MAINTENANCE PERFORM 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST COMPLETE SCHEDULED TEST COMPLETE SCKEDULED TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST EE 2 POST-TEST COMPLETE INSPECTIONS COMPLETE PUMP DOWN REINSTALL SUMP COVER PERFORM 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST COMPLETE PUHP DOWN COMPLETE MAINTEHANCE COMPLETE CORRECTIVE MAINTENANCE COMPLETE SCHEDULED TEST COMPLETE SCHEDULED TEST COMPLETE CORRECTIVE MAINTENAHCE COMPLETE PUMP DOWN PERFORM 3 AIR ROLLS -

1 PRE-TEST B 2 POST-TEST PERFORM 3 AIR ROLLS -

1 PRE-TEST 8 2 POST-TEST COMPLETE INSPECTION PER MPT-0082 COMPLETE PUMP DOWN PERFORM 3 AIR ROLLS -'

PRE-TEST 8 2 POST-TEST REFERENCE LER 88-006 FOR CORRECTIVE ACTION COMPLETE PUMP DOWN COMPLETE CORRECTIVE MAINTENAHCE REFERENCE LER 88-008 FOR CORRECTIVE ACTION

Page 4

ATTACHHENI' DATE DURATIOH CAUSE SYSTEH/COHPONENT CORRECTIVE ACTION 02/'l7/88 02/19/88 02/20/88 02/21/88 02/26/88 03/04/88 03/07/88 03/07/88 03/08/88 03/09/88 03/14/88 03/14/88 03/15/88 03/16/88 03/17/88 03/18/88 03/18/88 03/21/88 03/21/88 03/22/88 03/25/88 03/28/88 03/29/88 03/29/88 04/04/88 04/06/88 04/07/88 04/09/88 04/09/88 04/11/88 04/11/88 04/14/88 04/15/88 04/22/88 04/22/88 04/25/88 04/29/88 05/02/88 38.42 CALIBRATION OF AGASTAT RELAY P1A2/1183 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 8.42 EQ INSPECTION OF MOVES 1CS-292,

278, 169, 171 8.08 EQ INSP.

OF HOV'S 1CS-168,

170, 291 4.33 INSPECTION OF HEAT SHRINK ON l}IRING, CLEARANCE REQ'D 0.58 ADJUST PACKING 2.40 PUHP DOWN THE RECIRCULATION SUMP 14.67 MST'S AND HAINTENANCE 1.50 OST-1013 1A-SA EDG OPERABILITY HONTHLY INTERVAL 1.00 RHR INOP.FOR HAINTENANCE ON AH-SA 12.20 PUHP DOWN THE RECIRCULATION SUMP 7.37 18-SB ESW UNDER CLEARANCE FOR EPT-101T 15.33 CHANGE OIL IN PUHP HOTOR 3.38 'IA-SA ESW INOP.

FOR EPT-101T 15.87 CHANGE OIL 0.50 OST-1008 RHR PUMP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RHR PUHP OPERABILITY QUARTERLY INTERVAL 19.00 PERFORM PHS ON LOCAL HETERS, RELAYS AND 6.9 BKR.

2.00 PUHP DOWN THE RECIRCULATION SUMP 1.50 OST-1073 1B-SB EDG OPERABILITY HONTHLY INTERVAL 9.70 A ESW HEADER REPAIR LEAK ON WELD AT 1SW 69 5.08 PUHP DOWN THE RECIRCULATIOH SUHP 0.58 PERFORM HST-l0098 ON P-925 0.43 PERFORH HST-10098 ON P-927 3.25 PUMP DOWN THE RECIRCULATION SUHP 7.92 WORK ON 1A-SA SEQUENCER To ADJUST AGASTAT SETPOINTS PCR-2867 1.33 WORK ON 18-SB SEQUENCER TO ADJUST AGASTAT SETPOINTS 1.50 OST-1085 1A-SA EDG OPERABILITY SEHIANHUALLY 1.50 OST-1013 1A-SA EDG OPERABILITY HONTHLY INTERVAL 0.63 ACCUM C PRESSURE LOOP CAL (P-0931) HST-I0101 3.17 PUHP DOWN THE RECIRCULATION SUHP 6.82 PIC-l032 INSPECT 4 ADJUST FLOW INDICATING SWITCH 5.88 CALIBRATION OF FS-602A 14.55 STOP FUEL OIL LEAK 1.50 OST-1073 1B-SB EDG OPERABILITY HONTHLY INTERVAL 2.00 PUHP DOWN THE RECIRCULATION SUHP 0.77 PERFORH LEVEL SECTIONS (7.2-7.10)

OF MST-10110 3.25 PUHP DOWN THE RECIRCULATION SUHP EDG EDG ECCS ECCS ECCS ECCS ECCS EDG EDG ECCS ECCS EOG ECCS ECCS ECCS ECCS ECCS EDG ECCS EDG EDG ECCS ECCS ECCS ECCS EOG EDG EDG EDG ECCS ECCS ECCS ECCS EDG EDG ECCS ECCS ECCS B EDG B EDG 8 CSIP A CSIP 8 CSIP/1CS-291 A CSIP/1CS-168 B RHR A EDG A EDG A RHR 8

RHR B EDG/ESW A RHR A EDG B RHR PUHP A RHR B RHR B EDG 8

RHR B EDG A EDG 8 RHR' ACCUH B ACCUH B RHR PUMP A EDG B EDG A EDG A EDG C ACCUH B RHR B RHR A RHR B EDG B EDG B RHR C ACCUH 8

RHR COHPLETE CALIBRATION PERFORH 3 AIR ROLLS -

1 PRE-TEST COHPLETE INSPECTIONS COHPLETE INSPECTIONS PERFORM Qc INSPECTION COHPLETE CORRECTIVE HAINTENANCE COHPLETE PUHP DOWN COHPLETE TEST AND MAINTENANCE PERFORH 3 AIR ROLLS -

1 PRE-TEST COHPLETE MAINTENANCE COMPLETE PUHP DOWN COMPLETE PERIODIC TEST COHPLETE HAINTENANCE COHPLETE SCHEDULED TEST COHPLETE MAINTENANCE COMPLETE SCHEDULED TEST COHPLETE SCHEDULED TEST COMPLETE MAINTENANCE COMPLETE PUHP DOWN PERFORH 3 AIR ROLLS -

1 PRE-TEST COMPLETE CORRECTIVE HAINTENANCE COHPLETE PUHP DOWN COHPLETE SURVEILLANCE TEST COHPLETE SURVEILLANCE TEST COHPLETE PUMP DOWN COHPLETE HODIFICATION COMPLETE EPT-033 PERFORH 3 AIR ROLLS -

1 PRE-TEST PERFORH 3 AIR ROLLS -

1 PRE-TEST HST-I0101 COMPLETE COHPLETE PUHP DOWN PIC-1032 COMPLETE COHPLETE CALIBRATION COMPLETE CORRECTIVE HAINTENANCE PERFORM 3 AIR ROLLS -

1 PRE-TESI'OHPLETE PUHP DOWN COMPLETE SURVEILLANCE TEST COHPLETE PUHP DOWN 2 POST-TEST B 2 POST-TEST }I 2 POST-TEST 8 2 POST-TEST I} 2 POST-TEST 5 2 POST-TEST

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Page 5 ATTACHMENT 1 DATE DURATION CAUSE SYSTEH/COMPONENT CORRECTIVE ACTION 05/07/88 05/09/88 05/13/88 05/15/88 05/16/88 05/19/88 05/23/88 05/23/88 05/23/88 05/24/88 05/30/88 05/31/88 06/03/88 06/03/88 06/06/88 06/08/88 06/09/88 06/13/88 06/13/88 06/13/88 06/13/88 06/13/88 06/13/88 06/13/88 06/13/88 06/14/88 06/14/88 06/14/88 06/14/88 06/14/88 06/15/88 06/15/88 06/16/88 06/16/88 06/16/88 06/16/88 06/20/88 06/20/88 EDG ECCS EDG EDG ECCS ECCS ECCS EDG EDG EDG ECCS ECCS EDG ECCS EDG EDG ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS ECCS 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 2.08 PUMP DOWN THE RECIRCULATION SUHP 0.17 1SW-1329 & 1SW-1326 FAILED TO OPEN 6.67 ESW PUMP FAILED TO START DUE TO DEFECTIVE RELAY IH THE SEQUENCER 6.17 PUMP DOWN THE RECIRCULATION SUHP 4.08 ROTATE CONTROL POWER TOGGLE SWITCH TO PROPER POSITION 1.87 PUHP DOWN THE RECIRCULATION SUMP 21.83 REPAIR JACKET WATER COOLER LEAKS REPAIR BEARING OIL 0.83 PERFORH EPT-033 1.50 OST-1073 1B-SB EDG OPERABILITY HONTHLY INTERVAL 2.33 PUMP DOWN THE RECIRCULATION SUMP 8.00 LUBRICATE PUMP 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 12.68 PHP FAILED TO START ON LOOP SEQUENCER WHEN BUS 1ASA WAS DE-EHERGIZEDEDG 1.42 PUMP DOWN THE RECIRCULATION SUHP 17.15 PERFORM MAINTENANCE PRIOR TO SCHEDULED OST-1013 PERFORHANCE 1.50 OST-1013 1A-SA EDG OPERABILITY HONTHLY INTERVAL 18.75 PERFORMANCE OF EPT-072 AND MPT-10032 18.75 PERFORM PH-EOO'l2 ON PUMP BREAKER 2.50 PUMP DOWN OF CONT SPRAY/RNR RECIR SUMP 8 20;75 PERFORHANCE OF EPT-072 AHD HPT-l0032 20.75 PERFORH EPT-072 AND MPT-10032 18.75 PERFORH EPT-072 AND HPT-10032 20.75 PERFORHANCE OF EPT-072 AND MPT-I0032 20.75 PROVIDE ISOLATION FOR TESTING OF 181-311 18.92 PERFORH EPT-072 (EQ INSP) 4 MPT-I0032 17.58 EPT-072 (EQ INSPECTION) OF LIHITORQUES 17.08 PERFORH EPT-072 (EQ INSP) a HPT-10032 19.37 PERFORH EPT-072 (EQ INSP) & HPT-l0032 9.25 PERFORH EPT-072 & MPT-10037 0.50 OST-1008 RHR PUHP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RHR PUMP OPERABILITY QUARTERLY IHTERVAL 34.48 PERFORM EPT-072, MPT-I0032 FOUND BAD GREASE IN OPERATOR 31.32 PERFORM EPT-072 II MPT-I0032 39.90 PERFORH MPT-E0008 40.15 PERFORM EPT-072 AND HPT-I0032 3.83 1CS-753 B CSIP ALT HINIFLOW ISOLATION 3.45 PERFORM PIC-I009 ON 1CH-616 AH-98-SB TCV 'A EDG 8 RHR A EDG/A ESW 8 EDG/ESW 8 RHR A RHR PMP B RHR B EDG 8 EDG/B SEQ 8 EDG 8 RHR 8 CSIP 8 EDG A EDG/ES'W PHP 8 RHR A EDG A EDG B RHR/1RH-69 B RHR PUHP B RHR 8 RHR/1S1-311 8 RHR/1SI -327 B RHR/1SI-323 B RHR/1RH-63 B RHR/1SI-301 A RHR/1RH-31 A RHR/1RH-25 A RHR/1SI-310 A RHR/1SI-326 A CSIP/1SI-322 A RHR B RHR 8 CSIP/1CS-752 B CSIP/1SI-2 8 CSIP 8 CSIP/1CS-196 B CSIP 8 CSIP PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE PUMP DOWN REFERENCE LER 88-012 FOR'CORRECTIVE ACTION REFERENCE LER 88-029 FOR CORRECTIVE ACTION COHPLETE PUMP DOWN ROTATION COHLETE COMPLETE PUMP DOWN COMPLETE CORRECTIVE MAINTEHANCE COHPLETE EPT-033 PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COMPLETE PUMP DOWN COHPLETE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST &t 2 POST-TEST REFERENCE LER 88-013 FOR CORRECTIVE ACTION COHPLETE PUMP DOWN COMPLETE SURVEILLANCE TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST B 2 POST-TEST COMPLETE PERIODIC TESTS COMPLETE PERIODIC MAINTENANCE SATISFACTORY COHPLETION OF OST-1803 & 1081 COMPLETE PERIODIC TESTS COMPLETE PERIODIC TESTS COHPLETE PERIODIC TESTS COHPLETE PERIODIC TESTS COMPLETE APPLICABLE PORTIONS OF OST-1008 COHPLETE PERIODIC TESTS COMPLETE PERIODIC TESTS COHPLETE PERIODIC TESTS COHPLETE PERIODIC TESTS COMPLETE PERIODIC TESTS COMPLETE SCHEDULED TEST COHPLETE SCHEDULED TEST COMPLETE CORRECTIVE HAINTENANCE COHPLETE PERIODIC TESTS COHPLETE PERIODIC TESTS COHPLETE PERIODIC TESTS COMPLETE EPT-072 COMPLETE CALIBRATIONS

Page 6 ATTACHMENT 1 DATE DURATION CAUSE SYSTEH/COMPONENT CORRECTIVE ACTION 06/20/88 06/22/88 06/22/88 06/22/88 06/22/88 06/24/88 06/24/88 06/27/88 06/29/88 06/30/88 06/30/88 07/04/88 07/05/88 07/06/88 07/06/88 07/08/88 07/08/88 07/08/88 07/08/88 07/09/88 07/11/88 07/18/88 07/21/88 07/22/88 07/22/88 07/23/88 07/26/88 07/26/88 07/27/88 07/27/88 07/27/88 07/27/88 08/06/88 08/06/88 08/08/88 08/08/88 08/08/88 08/15/88 3.17 PUHP DOWN THE RECIRCULATION SUHP 13.62 PERFORH MPT-I0032 & EPT-072 11.82 PERFORH EPT-072 AND MPT-10032 13.92 PERFORM MPT-E0008 11.75 PERFORH EPT-072 AND MPT-10032 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL F 50 OST-1086 18-SB EDG OPERABILITY SEHIANNUALLY 2.25 PUMP DOWN THE RECIRCULATION SUHP 1.40 SCREENS ON A ESW BAY 8 FAIL TO MOVE WHILE PUMP IS RUNNING 8.33 REPAIR LEAK ON A CCW NEAT EXCHANGER 2.07 PERFORH PIC-1009 ON 1CH-199 0.75 PERFORH PIC-1009 ON 1CH 251 2.50 PUHP THE SUMP DOWN DUE TO LEAKAGE PAST 1CT-102 SEAT 0.45 TESTING OF OVERSPEED OF EDG & BARRING 18.67 A ESW TRAIN IS INOP DUE TO TRAVELING SCREEH SHEAR PIN BROKEN 6.23 ADJUST OR REPLACE FAN BELTS 5.38 PERFORM EPT-033 4.97 CALIBRATE RELAY 2-32A/1116 5.88 PERFORH PIC l0666 ON TE.6903 A-SA HVAC 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.42 PUMP OUT THE SUHP 2.92 PUHP DOWN THE RECIRC SUHP 8 2.55 REPACK VALVES 1RH-20,

1RH26, 1S1-324, 1SI-325 0.78 PERFORM EPT-033 0.88 1CC-167 FAILED TO OPEN

& CLOSE PROPERLY 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 6.50 PUMP WTR THAT HAS LEAKED FROH RWST ISO VLVS INTO CT 8 SUHP 0.56 ESW PUMP DECLARED INOP DUE TO FAILED TRAVELING SCREEHS F 50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 3.42 REPLACE JUMPER WIRE WITH A QUALIFIED WIRE 5.72 TIGHTEN & REPLACE BELTS ON AH-5A IN 190'AB 3.42 REPLACE JUHPER WITH QUALIFIED WIRE 1.50 OST-1823 1A-SA EDG OPERABILITY 18 MONTH 1.50 OST-1823 1A-SA EDG OPERABILITY 18 MONTH 1.50 OST-1824 1B-SB EDG OPERABILITY 18 HONTH 7.15 PERFORH HODIFICATIOH PCR-875 AND 924 1.50 OST-1824 1B-SB EDG OPERABILITY 18 MONTH 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL ECCS ECCS ECCS ECCS ECCS EDG EDG ECCS EDG ECCS ECCS ECCS ECCS EDG EDG EDG EDG EDG EDG EDG ECCS ECCS ECCS EDG ECCS EDG ECCS EDG EDG ECCS ECCS ECCS EDG EDG EDG EDG EDG EDG 8 RNR A CSIP/1SI-1 A CSIP/1CS.745 A CSIP A CSIP/1CS-746 8 EDG 8 EDG 8 RHR & 2 POST-TEST & 2 POST-TESI' EDG/TRAV SCREEN A RMR PHP A RHR/AH-SA A RHR/1CH-251 8 RHR 8 EDG A EDG A EDG/AH-86A A EDG/A SEQ A EDG/A SEQ 8 EDG A EDG B RHR 8 RHR A RNR 8 EDG 8 RHR 8 EDG 8 RHR A EDG/ESW 8 EDG 8 CSIP/181-2 A RHR 8 CSIP/1SI-2 A EDG A EDG 8 EDG A EDG 8 EDG A EDG EDG & 2 POST-TEST & 2 POST-TEST IVE ACTION & 2 POST-TEST & 2 POST-TEST & 2 POST-TEST & 2 POST-TEST & 2 POST-TEST & 2 POST-TEST COMPLETE PUHP DOWN . COHPLETE PERIODIC TESTS COMPLETE EPT-072 AND MPT-'I0032 COHPLETE MPT-E008 COHPLETE EPT-072 AND MPT-10032 PERFORH 3 AIR ROLLS - 1 PRE-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST COMPLETE PUMP DOWN COHPLETE CORRECTIVE HAIHTENANCE REPAIR LEAK COMPLETE CALIBRATION COHPLETE PIC-I009 COHPLETE PUMP DOWN ~ COMPLETE TEST AND BARRING OF "B" COHPLETE CORRECTIVE MAINTENANCE COMPLETE CORRECTIVE MAINTENANCE COHPLETE PERIODIC TEST COMPLETE MAINTENANCE COHPLETE CALIBRATION PROCEDURE PERFORM 3 AIR ROLLS - 1 PRE-TEST COHPLETE PUHP DOWN COMPLETE PUMP DOWN COMPLETE MAIHTENAHCE COMPLETE EPT-033 COHPLETE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST COHPLETE HAINTENANCE REFERENCE LER 88-017 FOR CORRECT PERFORH 3 AIR ROLLS - 1 PRE-TEST COMPLETE HAIHTENANCE COMPLETE MAINTENANCE COHPLETE CORRECTIVE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST COHPLETE HODIFICATIONS PERFORH 3 AIR ROLLS - 1 PRE-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST

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Page 7 ATTACHMENT 1 DATE DURATION CAUSE SYSTEH/COMPONENT CORRECTIVE ACTION 08/22/88 08/25/88 08/29/88 09/05/88 09/16/88 09/16/88 09/20/88 09/27/88 10/09/88 10/09/88 10/10/88 10/13/88 10/21/88 10/22/88 11/06/88 11/08/88 11/10/88 11/11/88 11/18/88 11/19/88 11/21/88 11/22/88 11/23/88 11/25/88 11/29/88 12/02/88 12/02/88 12/07/88 12/14/88 12/14/88 12/22/88 12/22/88 12/22/88 12/29/88 01/03/89 01/03/89 01/05/89 01/06/89 15.20 LEAKING OIL AND LEAK OH SEAL WATER EQUALIZING LINE 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 0.08 EST-317.PERFORM SEQUENCER TEST 0.08 EST-317 PERFORM SEQUENCER TEST 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1085 1A-SA EDG OPERABILITY SEMIANNUALLY F 50 OST-1013 1A-SA EDG OPERABILITY HONTHLY IHTERVAL 4.42 INSTALLATION OF INSULATION ON EXHAUST STACK 2.75 FAN E-86 D-SB IS INOPERABLE 9.50 PROBLEHS WITH SPEED CONTROL DURING OST-1073 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 31.32 CALIBRATE DIFFERENTIAL PRESSURE INDICATOR 8.23 CALIBRATE PRESSURE DIFFERENTIAL INDICATOR FOR AH-9B 32.33'REPAIR SEAT LEAKS ON CASING DRAIN VALVES 1CS-175 8 1CS 5.33 FANS E-85 1ASA B 1BSA WILL NOT RUN, DIESEL INOPERABLE 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 12.12 COMPLETE PCR-1446 F PERFORH MOO-204 ACCEPTANCE TEST AN 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 21.27 DISASSEHBLE F INSP SEATING SURFACES ALT MINIFLOW VLV 33.92 PUMP UNDER CLEARANCE TO REPAIR WELD ON SEAL LINE 3.67 CALIBRATE FS-69078 (E-85 ASB 4 BSB) 25.50 INCOMPLETE ECCS TIME RESPONSE TESTING 21.42 CSIP DECLEARED INOP DUE TO MISSED SURVEILLANCE TESTS 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 0.50 OST-1008 RNR PUMP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RNR PUMP OPERABILITY QUARTERLY INTERVAL 8.12 REMOVAL AND INSPECTION OF FUEL CONTROL BEARING BRACKET 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1086 1B-SB EDG OPERABILITY SEHIANNUALLY 1.08 LOSS OF BUS DURING PERFORH OF UNDER VOLTAGE TEST 5.92 TEST AH-9A COOLING COlL FOR LEAKAGE 5.90 OIL CHANGE 23 F 08 REPAIR OIL LEAKS MPT-M0001 ON STARTING AIR DRYERS 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL -176 0 EPT-33 ECCS EDG EDG EDG ECCS ECCS EDG EDG EDG EDG EDG EDG EDG EDG EDG ECCS ECCS ECCS EDG EDG EDG EDG ECCS ECCS EDG ECCS ECCS EDG ECCS ECCS EDG EDG EDG EDG ECCS ECCS EDG EDG 8 CSIP B EDG B EDG A EDG 8 RHR B RHR 8 EDG A EDG A EDG A EDG A EDG B EDG B EDG B EDG A EDG A CSIP/AH-9A B CSIP A CSIP A EDG 8 EDG 8 EDG B EDG A CSIP 8 CSIP B EDG C CSIP C CSIP A EDG 8 RHR A RHR 8 EDG B EDG B EDG A EDG BUS A CSIP/AH-9A A CSIP A EDG A EDG COMPLETE CORRECTIVE HAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST II 2 POST-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST K 2 POST-TEST COMPLETE EST-317 COMPLETE EST-3'17 PERFORH 3 AIR ROLLS - 1 PRE-TEST 8I 2 POST-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST PERFORH 3 AIR ROLLS - I PRE-TEST 4 2 POST-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST B 2 POST-TEST COMPLETE MAIHTENANCE REPAIR FAN ADJUST SPEED CONTROLLER PERFORM 3 AIR ROLLS - 1 PRE-TEST Bt 2 POST-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST B 2 POST-TEST COMPLETE CALIBRATION COMPLETE CALIBRATION COMPLETE MAINTENANCE COMPLETE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE TEST AND MAIHTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST B 2 POST-TEST COMPLETE MAINTENANCE COMPLETE MAINTENANCE COMPLETE CALIBRATION REFERENCE LER 88-035 FOR CORRECTIVE ACTIOH REFERENCE LER 88-033 FOR CORRECTIVE ACTION PERFORM 3 AIR ROLLS -- 1 PRE-TEST 8 2 POST-TEST COMPLETE SCHEDULED TEST COMPLETE SCHEDULED TEST COMPLETE CORRECTIVE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST B 2 POST-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST RESTORE OFFSITE POWER TO 1ASA BUS CHECK FAN FOR LEAKAGE COMPLETE MAINTENANCE COMPLETE TEST AND MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST

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Page 8 ATTACHMENT 1 DATE DURATION CAUSE SYSTEH/COMPONENT CORRECTIVE ACTION 01/06/89 01/07/89 01/09/89 01/12/89 01/23/89 01/23/89 01/24/89 01/25/89 01/25/89 01/26/89 01/26/89 02/10/89 02/10/89 02/21/89 02/21/89 03/02/89 03/04/89 03/OC/89 03/09/89 03/09/89 03/09/89 03/09/89 03/22/89 03/23/89 03/23/89 04/06/89 04/06/89 04/10/89 04/10/89 04/12/89 04/12/89 04/12/89 04/13/89 04/13/89 04/13/89 04/20/89 04/26/89 04/26/89 CHANGE GREASE CR-845 VALVES 7.17 REPAIR MECH SEAL JACKET-MATER KEEP I!ARM PNIP 2.45 REPAIR MECH SEAL JACKET IIATER KEEP 'WARM PUMP 4.77 PERFORM MPT-10084 OIL CHANGE 12.18 REPAIR OIL LEAKS AND CHANGE OIL 6.50 CHANGE OIL 11 F 07 CLEAN F.O. STRAINERS, REMORK LEAKING INTAKE ELBOII 1.50 OST-1073 1B-SB EDG OPERABILITY HONTHLY INTERVAL 14.75 DISASSEMBLE VALVE, INSPECT, LAP SEAT 5.60 MEGGAR AND BRIDGE MOTOR 6.00 PERFORM MPT-MOO&4 (MOTOR LUBE) 20.67 REPLACE BONNET GASKET 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 41.10 CALIBRATE RELAY, PIC-E037, REPLACE VARMETER PER P 0.88 VERIFY REMOVAL OF TEMP. MOO. PCR-768 F 50 OST-1073 'IB-SB EDG OPERABILITY MONTHLY INTERVAL 3.42 A TRAIN E-85 FANS MILL MOT CONTINUE RUNNING 0.50 OST-1008 RHR PUMP OPERABILITY QUARTERLY INTERVAL 0 ~ 50 oST-1008 RHR PUMP OPERABILITY QUARTERLY INTERVAL 2C.65 VALVE 1CS-214 FAILED To STROKE SHUT 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1085 1A-SA EDG OPERABILITY SEMIANNUALL'Y 15.83 REPAIR LEAKS ON PUHPS, FITTINGS AMD JACKET SAMPLE 14.07 INSTALL PCR-845 0.25 TROUBLESHOOT PROBLEH 'NITH Fl-605A AND REPAIR 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 4.42 REMOVE TERMINAL COVER AMD CHECK PER PCR-3425 F 00 REMOVE TERMINAL COVER AND CHECK PER PCR-3425 12.53 MPT-10032 LIMITORQUE INSPECTION 12.53 MPT-10032 LIMITORQUE INSPECTION 11.05 MPT-10032 LIMITORQUE INSPECTION 0.30 INSPECT 1DFO-164 'NSP ~ SEQUENCER, HST-10493 11.05 MpT-10032 LIHIToRQUE IMspECTloN 0'8 REPAIR BARRING DEVICE 0.35 REPLACE BARRING DEVICE 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 4.42 CLEAN GEAR DRIVE OIL STRAINER 4.47 CLEAN GEAR DRIVE OIL STRAINER EDG EDG ECCS ECCS ECCS EDG EDG ECCS EDG ECCS ECCS EDG EDG ECCS EDG EDG ECCS ECCS ECCS EDG EDG EDG EDG ECCS EDG ECCS ECCS ECCS ECCS ECCS EDG ECCS EDG EDG EDG EDG ECCS ECCS 8 EDG 8 EDG A CSIP 8 CSIP B RKR 8 EDG B EDG B CSIP/1CS-754 8 EDG/DFO XFER A RHR PHP A CSIP/1CS-745 A EDG A EDG 8 RHR/1CC-167 8 EDG A EDG A RHR 8 RHR A CSIP A EDG A EDG A EDG B EDG/ESII A RHR 8 EDG A CSIP/1$ 1-4 8 CSIP/1RH-63 C CSIP/1CS-'169 B CSIP C CSIP/1CS-168 A EDG A CSIP/1CS-170 A EDG A EDG A EDG 8 EDG A CSIP 8 CSIP COMPLETE CORRECTIVE MAINTENANCE COMPLETE CORRECTIVE MAIN'IENANCE COMPLETE MAINTENANCE COMPLETE MAINTENANCE COMPLETE OIL CNAHGE COMPLETE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE CORRECTIVE MAINTEHANCE PMP COMPLETE TESTS COMPLETE MAINTENANCE REPLACE GASKET PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE CALIBRATION AND MODIFICATION COMPLETE REMOVAL PERFORM 3 AIR-ROLLS - 1 PRE-TEST 8 2 POST-TEST COHPLETE CORRECTIVE MAINTENANCE COMPLETE SCHEDULED TEST COMPLETE SCHEDULED TEST COMPLETE CORRECTIVE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE CORRECTIVE MAINTENANCE COMPLETE MODIFICATION COMPLETE CORRECTIVE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE MODIFICATION COMPLETE MODIFICATION COMPLETE MAINTENANCE TEST AND INSPECTION COMPLETE MAINTENANCE TESI'MD INSPECTION COMPLETE MAINTEHANCE TEST AHD INSPECTION COMPLETE CORRECTIVE MAINTENANCE AND TEST COMPLETE MAINTENANCE TEST AND INSPECTION REPAIR BARRING DEVICE REPLACE AFTER ATTEMPTED REPAIR PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE MAINTENANCE COMPLETE MAINTENANCE

Page 9 ATTACHHENT 1 DATE DURATION CAUSE SYSTEM/COMPONENT CORRECTIVE ACTION 04/27/89 05/08/89 05/09/89 05/16/89 05/16/89 05/17/89 05/17/89 05/17/89 05/19/89 05/26/89 05/27/89 05/31/89 06/02/89 06/02/89 06/04/89 06/04/89 06/05/89 06/07/89 06/07/89 06/07/89 06/16/89 06/16/89 06/16/89 06/17/89 06/17/89 06/18/89 06/20/89 06/22/89 07/05/89 07/05/89 07/05/89 07/05/89 07/06/89 07/07/89 07/11/89 07/17/89 07/17/89 07/24/89 3.92 REPLACE PLUGS IN OIL COOLER HEAT EXCHANGER 16.50 INSPECTION FOR LEAKS AND PERFORM EST-211 1.50 OST-1013 1A-SA EDG OPERABILITY MOHTHLY INTERVAL 4.72 FUEL OIL TRANSFER PUHP FAILED OST-1073 13.33 REPLACE TORQUE SWTCH 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 2.12 BREAKER REPLACEMENT PCR-4007 6.65 REPLACE TORQUE SWITCH 6.83 E-86A FAN TRIPPED B BKR WILL NOT RESET 4.72 REPLACE TORQUE SWITCH 5.92 REHOVED FROH SERVICE TO PLACE 8 CSIP IN SERVICE 1.42 TAKEN OOS TO TEST B-CSIP 3.00 BKR RACKED OUT TO ALLOW 8 CSIP PMP TEST 1.32 AIR START SOLENOID TROUBLESHOOTING 27.62 FAN BKR TRIPS ON THERHALS 23.28 DISASSEHBLE AND INSPECT IDFO-205 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY IHTERVAL 2'0 MPT-I0068 WHICH INOPS AH-85 0.50 OST-1008 RHR PUMP OPERABILITY QUARTERLY INTERVAL 0.50,0ST-1008 RHR PUMP OPERABILITY QUARTERLY INTERVAL 7.48 CHANGE OIL 14.08 DG INOP WITH ESW INOP 8 DUE TO MST-10490 14.03 REPACK VALVE 1-S'WB 1.50 OST-1086 1B-SB EDG OPERABILITY SEHIANHUALLY 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 3.25 CALIBRATE FLOW SWITCH 6905B 13.18 ADJUST % CYLINDER 3.03 INSPECT VALVE SPRINGS 1.38 REPAIR 1EA-14, 1EA29 8 SOLENOID VALVE 15.58 CHANGE OIL IH PUMP 12.72 UNDER CLEARANCE FOR COIL LEAK CHECK 10.48 CHANGE OIL IN PUHP 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 2.13 REMOVE SUMP COVER TO FIX LEVEL INDICATOR 5.67 MAINTENANCE ON 1SW-E006 12.50 REPLACE EXHAUST GASKET, PLANNED PM 1.50 OST-1073 1B-SB EDG OPERABILITY HOHTHLY INTERVAL 7.57 PERFORM MAINTENANCE OH 1SW-270 ECCS EDG EDG EDG ECCS EDG EDG ECCS EDG ECCS ECCS ECCS ECCS EDG EDG , EDG EDG EDG ECCS ECCS ECCS EDG EDG EDG EDG EDG EDG EDG EDG ECCS ECCS ECCS EDG ECCS EDG EDG EDG EDG 8 CSIP A EDG A EDG B EDG/1DFO.E003 A RHR/1CC-147 8 EDG B EDG B RHR/1CC-167 A EDG 8 RHR/1CC-167 C CSIP C CSIP C CSIP 8 EDG A EDG/1DG-E017 A EDG/1DG-E017 A EDG 8 EDG/1DG E015 A RHR B RHR 8 RHR 8 EDG/ESW B EDG/1SW-8 8 EDG B EDG B EDG/AH-85 B EDG A EDG/1DG-E002 A EDG A CSIP A CSIP/AH-9A A RHR A EDG 8 RHR 8 EDG 8 EDG 8 EDG 8 EDG/1SW-E005 ND TEST 8 2 POST-TEST 8 2 POST-TEST & 2 POST-TEST 8 2 POST-TEST 8 2 POST-TEST Bt 2 POST-TEST 8 2 POST-TEST COMPLETE CORRECTIVE MAINTENANCE COMPLETE CORRECTIVE MAINTENANCE A PERFORM 3 AIR ROLLS - 1 PRE-TEST COHPLETE CORRECTIVE MAINTENANCE COHPLETE CORRECTIVE MAINTENANCE PERFORH 3 AIR ROLLS 1 PRE-TEST COMPLETE MODIFICATION COMPLETE CORRECTIVE MAINTENANCE COMPLETE CORRECTIVE MAINTENANCE COHPLETE CORRECTIVE MAINTENANCE COMPLETE TRANSFER COMPLETE TEST RETURN TO SERVICE COHPLETE TEST RETURH TO. SERVICE COMPLETE CORRECTIVE MAINTENANCE COHPLETE CORRECTIVE HAINTEHANCE COMPLETE CORRECTIVE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST COHPLETE PERIODIC TEST COMPLETE SCHEDULED TEST COHPLETE SCHEDULED TEST INSPECT FOR PROPER OIL LEVEL COMPLETE SURVEILLANCE TEST COMPLETE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST COMPLETE CALIBRATION COHPLETE CORRECTIVE MAINTENANCE COMPLETE INSPECI'ION COMPLETE CORRECTIVE MAINTENANCE COMPLETE MAINTENANCE COHPLETE MAINTEHANCE COMPLETE OIL CHANGE PERFORM 3 AIR ROLLS - 1 PRE-TEST COMPLETE CORRECTIVE MAINTENANCE COHPLETE MAINTENANCE COHPLETE CORRECTIVE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST COMPLETE CORRECTIVE MAINTENANCE

Page 'IO ATTACHMENT 1 DATE DURATION CAUSE SYSTEH/COMPONENT CORRECTIVE ACTION 07/26/89 07/26/89 07/26/89 07/31/89 07/31/89 07/31/89 07/31/89 08/14/89 08/14/89 08/15/89 08/21/89 08/22/89 08/22/89 08/22/89 08/28/89 08/29/89 09/06/89 09/07/89 09/07/89 09/11/89 09/11/89 o9/11/e9 09/25/89 09/25/89 09/25/89 09/26/89 09/26/89 09/27/89 09/27/89 10/09/89 10/09/89 10/09/89 10/16/89 10/16/89 10/23/89 11/07/89 11/08/e9 11/22/89 9.52 LIMITORQUE INSPECTION 9.27 LIMITORQUE INSPECTION 8.58 LIMITORQUE INSPECTION 6.80 DISASSENBLE AND CLEAN VALVE REGULATOR F 50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 7.00 INSTALL PCR-4'662 AND PERFORM EPT-33 5.72 PERFORN LP-T-6589A 7.67 TRAHSPOSE lIIRES To AGREE ll/ DESIGN IAM PCR-4663 7.00 INSPECT COUPLING GUARD 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 5.67 RHR VALVES NOT BEING TESTED AS REQUIRED 11'8 REPLACE FILTERS ON BOTH FANS 14.50 PERFORM CM-ME0018, CLEAN CORROSION FROM PMP COUPL 14.50 MAINTENANCE INSPECTION AND LUBRICATIOH 6.92 MAINTENAHCE ON EDG 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY IHTERVAL 8.75 PERFORM MPT-10032 LIMITORQUE INSPECTION 0.50 OST-1008 RHR PUMP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RHR PUMP OPERABILITY QUARTERLY INTERVAL 12.18 MAINTEHAHCE OH DG RELAYS 1.50 OST-1073 18 SB EDG OPERABILITY MONTHLY INTERVAL 3.80 SERVICE HATER LEAK ON SPEED CHANGER COOLER 7.12 PERFORN MST-E0059 AND NST-E0061 1.00 CALIBRATE FLOI SlIITCHES FS-6905B-SB 1.50 PERFORN LP-T-6502A 4.83 INSPECT PUMP CLEARANCES 2.67 CHANGE FILTER AIR HANDLER AH-86 1.50 OST-1085 1A-SA EDG OPERABILITY SEMIANNUALLY 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 5.00 IHSPECT & REPLACE A]R FILTERS 4.50 FUEL OIL XFER PUMP STRAINER LEAK 1.50 OST-1073 1B-SB EDG OPERABILITY MOHTHLY INTERVAL F 50 OST-1823 1A-SA EDG OPERABILITY 18 MONTH 1.50 OST-1823 1A-SA EDG OPERABILITY 18 MONTH 1.50 OST-1013 1A-SA EDG OPERABILITY NONTHLY INTERVAL 1.92 2 HANGERS REMOVED FOR ISI INSPECTION 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL ING & SHAFT ECCS ECCS ECCS EDG EDG EDG EDG EDG ECCS EDG ECCS EDG EDG EDG EDG EDG ECCS ECCS ECCS EDG EDG ECCS EDG EDG ECCS EDG EDG EDG EDG EDG EDG EDG EDG EDG EDG ECCS EDG EDG 8 CSIP/1CS-196 C CSIP/1CS-752 8 CSIP/181-2 A EDG/1S'W-20 A EDG A EDG/A SEQ A EDG/AH-86A B EDG/B SEQ 8 CSIP B EDG RHR A EDG/AH-85 A EDG/ESll PUMP A EDG/AUX RES S A EDG A EDG B CSIP/1SI-323 B RHR A RHR 8 EDG 8 EDG 8 CSIP A EDG 8 EDG/AH.85 A RHR/AH-SA A EDG/EslI SCRH A EDG A EDG A EDG 8 EDG/AH-85 8 EDG/XFER PMP 8 EDG A EDG A EDG A EDG A RHR 8 EDG 8 EDG COMPLETE INSPECTION COMPLETE INSPECTION COMPLETE INSPECTION COMPLETE CORRECTIVE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST COMPLETE MODIFICATION AND TEST COMPLETE LOOP CALIBRATION COMPLETE MODIFICATION AND TEST COMPLETE INSPECTION PERFORN 3 AIR ROLLS - 1 PRE-TEST REFERENCE LER 89-014 FOR CORRECTI COMPLETE MAINTENANCE COMPLETE MAINTEHANCE CRN VERIFY PROPER SCREEH OPERATIOH COMPLETE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST COMPLETE INSPECTIONS AND TEST COMPLETE SCHEDULED TEST COMPLETE SCHEDULED TEST COMPLETE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST COMPLETE CORRECTIVE MAINTENANCE COMPLETE SURVEILLANCE TEST COMPLETE CALIBRATION COMPLETE LOOP CALIBRATIOH 'MASHCOMPLETE IHSPECTIONS COMPLETE CORRECTIVE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST COMPLETE CORRECTIVE MAINTENANCE COMPLETE CORRECTIVE MAIHTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST REINSTALL HANGERS PERFORH 3 AIR ROLLS - 1 PRE-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST &, 2 POST-TEST VE ACTION & 2 POST-TEST & 2 POST-TEST & 2 POST-TEST 8 2 POST-TEST & 2 POST-TEST 8 2 POST-TEST & 2 POST-TEST & 2 POST-TEST & 2 POST-TEST & 2 POST-TEST

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Page 11 ATTACHMENT 1 DATE DURATION CAUSE SYSTEM/COMPOHENT CORRECTIVE ACTION 11/23/89 11/23/89 11/27/89 12/04/89 12/10/89 12/12/89 12/12/89 12/14/89 12/15/89 12/15/89 12/17/89 12/22/89 12/22/89 12/28/89 12/31/89 01/01/90 01/01/90 01/03/90 01/15/90 01/16/90 01/23/90 01/29/90 01/29/90 01/29/90 01/29/90 01/29/90 01/29/90 02/12/90 02/13/90 02/13/90 02/20/90 02/20/90 02/20/90 02/22/90 02/26/90 02/26/90 02/28/90 03/01/90 0.50 OST-1092 18-SB RHR PUMP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 RKR PUMP OPERABILITY QUARTERLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 0.28 LOSS OF ALL RHR DURING VALVE TESTING 1 ~ 50 OST-1824 1B-SB EDG OPERABILITY 18 MONTH 1.50 OST-1824 1B-SB EDG OPERABILITY 18 MONTH 2.77 PERFORM MAIHTEHANCE ON iSI-3 32.08 JACKET HATER KEEPMARM PMP LEAK 3.30 REPLACE TORQUE SNITCH 1.50 OST-'I013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1086 1B-SB EDG OPERABILITY SEMIANNUALLY 1.50 OST-'1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL '1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 46.00 FREQUENCY DID NOT STABILIZE 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY IN'IERVAL 0.58 IHD. LIGHTS FOR 8 DG FUEL OIL XFER PMP S DAY TNK IHLT NOT OPER ~ 12.20 HAINTENAHCE ON RELAY 43T-DG1SB/1085 14.87 REPAIR 1DJO-10 AND 1PH.45 1.50 OST-1013 1A-SA EDG OPERABILITY HONTHLY INTERVAL 0.67 ADJUST PACKIHG 13.32 SET LIMIT SNITCHES 21.82 LUBRICATE DRIVE COUPLING 21.82 REPLACE EXHAUST GASKET 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 13.07 CHANGE FILTER 8.53 REBUILD AIR REGULATOR 36.78 PREPLANNED MAINTENANCE 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 0.50 OST-1008 1A-SA RHR PUMP OPERABILITY QUARTERLY INTERVAL 13.03 TORQUE BLADE PITCH LOCKNUT OH EXHAUST FAH 12.80 IHSPECT MOTOR HIHDING 13.07 8 CHILLER FAILED TO DEVELOP REQUIRED FLOW 3.03 A ESM OOS FOR CALIBRATION OF PT-9101A1 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 19.20 VARIOUS MAINTENANCE JOBS 6.40 PERFORM PM-I0020 OH 1SI-341 0.50 OST-1092 1B-SB RHR PUMP OPERABILITY QUARTERLY INTERVAL ECCS ECCS EDG EDG ECCS EDG EDG ECCS EDG ECCS EDG EDG EDG EDG EDG EDG EDG EDG EOG EDG ECCS ECCS EDG EDG EDG EDG ECCS EDG EDG ECCS EDG EDG ECCS EDG EDG EDG ECCS ECCS B RHR A RHR A EDG A EDG RHR B EDG 8 EDG B CSIP/1SI-3 B EDG A CSIP/181-4 A EDG 8 EDG 8 EDG A EDG B EDG 8 EDG 8 EDG 8 EDG A EDG A EDG 8 CSIP/1SI-2 B CSIP/1 s I-311 B EDG/1DLO-E006 B EDG 8 EDG 8 EDG/1B23-SB-3A B RHR/1RH-66 A EDG A EDG A RHR A EDG/EBBA A EDG/ESH PUMP CSIP/ESCIIC A EDG B EDG 8 EDG B RHR/1SI-341 B RHR POST-TEST POST-TEST CTION POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST CT ION POST-TEST COMPLETE SCHEDULED TEST COMPLETE SCHEDULED TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORH 3 AIR ROLLS - 1 PRE-TEST t 2 REFERENCE LER 89-022 FOR CORRECTIVE A PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 REPLACE TORQUE SNITCH COMPLETE CORRECTIVE MAINTENANCE REPLACE TORQUE SMITCH PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORM 3 AIR ROLLS - 1 PRE.TEST 8 2 PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 COMPLETE RETEST PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 REPLACE RELAY IN THE CONTROL PANEL COMPLETE CORRECTIVE MAINTENANCE COMPLETE CORRECTIVE MAINTEHANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 COMPLETE CORRECTIVE MAINTENANCE COHPLETE CORRECTIVE MAINTEHANCE COMPLETE CORRECTIVE MAINTENANCE COMPLETE CORRECTIVE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 REPLACE FILTER COMPLETE CORRECTIVE MAINTENANCE COMPLETE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 COMPLETE SCHEDULED TEST COMPLETE CORRECTIVE MAINTENANCE COMPLETE INSPECTIOHS REFERENCE LER 90-003 FOR CORRECTIVE A COMPLETE CALIBRATION PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 COMPLETE HAINTENANCE COHPLETE MAIHTENAHCE COMPLETE SCHEDULED TEST

Page 12 ATTACHHENT 1 DATE DURATION CAUSE SYSTEH/COHPONENT CORRECTIVE ACTION 03/06/90 03/06/90 03/12/90 03/13/90 03/13/90 03/19/90 03/22/90 03/23/90 03/26/90 03/27/90 03/28/90 03/29/90 03/29/90 04/11/90 04/11/90 04/24/90 05/01/90 05/03/90 05/07/90 05/07/90 05/17/90 05/20/90 05/21/90 06/04/90 06/04/90 06/04/90 06/06/90 06/13/90 06/14/90 06/19/90 06/19/90 06/20/90 06/22/90 06/26/90 07/02/90 07/02/90 07/16/90 07/16/90 12.42 PERFORH PM-E0012 OH BREAKER 20.18 REPLACE MOTOR PINION KEY 20.42 PREPLANNED HAINTENANCE 1.50 OST-1013 1A-SA EDG OPERABILITY HONTHLY INTERVAL 1.50 OST-1085 1A-SA EDG OPERABILITY SEHIANNUALLY 0.18 1SW-271 FAILED IN OPEN POSITION 0.18 PREPLANNED MAINTENANCE 0.70 ADJUST PACKING 20.92 CHANGE VARIOUS AIR AND FUEL OIL FILTERS 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 11.33 SAMPLE AND CHANGE OIL ARE REQiD IAW MPT-M0084 0'5 8 ESW SCREENWASH PUMP TRIPPED ON OVER LOAD 3.75 ESW PHP 6.9KV MTR RACKED OUT FOR LP-P-91018 ON PMP DISCH 25.95 PUMP TRIPS FREQUENTLY ON THERMALS. 1.50 OST-1013 1A SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 6.70 CHANGE OIL 0.50 OST-1008 1A-SA RNR PUMP OPERABILITY QUARTERLY INTERVAL 8.83 PERFORH PREPLANNED EDG HAINTENANCE 1.50 OST-1013 1A.SA EDG OPERABILITY MONTHLY INTERVAL 0.20 PERFORM EPT-153 8.30 SCREEH NOT ROTATING 1.50 OST-1073 1B SB EDG OPERABILITY MONTHLY INTERVAL 7.83 PERFORH LOOP CALIBRATRION LP-9101A 16.23 MAINTENAHCE 1.50 OST-1013 1A-SA EOG OPERABILITY MONTHLY INTERVAL 6.52 ADJUST/REPLACE BELTS OH AH-9A 12.75 PREPLANNED MAIHTEHANCE REPLACE MOTOR OIL 0.50 OST-1092 1B-SB RHR PUHP OPERABILITY QUARTERLY INTERVAL 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY IHTERVAL 1.50 OST-1086 18-SB EDG OPERABILITY SEMIANNUALLY 6.50 B CHILLER INOP DUE TO A MISPOSITIONED VALVE 7.37 FAH TRIPPED UPON STARTIHG 1.85 INSTALL TEST EQUIP TO VERIFY DIESEL START TIMES 14.33 PERFORH OIL LEAK REPAIRS AND MPT-0001 1.50 OST-1013 1A.SA EDG OPERABILITY MONTHLY INTERVAL. '1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY IHTERVAL 13.40 PREPLANNED HAINTENANCE ECCS ECCS EDG EDG EDG EDG EDG ECCS EDG EDG ECCS EDG PRESS INST EDG EDG EDG EDG ECCS ECCS EDG EDG ECCS EDG EDG EDG EDG EDG ECCS ECCS ECCS EDG EDG ECCS EDG EDG EDG EDG EDG EDG A RHR A RHR/1RH-25 A EDG A EDG A EDG 8 EDG/1SW-271 A EOG 8 CSIP/1SI-2 8 EDG 8 EDG 8 CSIP 8 EDG/1SC-BAY6 8 EDG/ESW 8 EDG/1SC-BAY6 A EDG 8 EDG A RHR A RHR A EDG/1DG-E002 A EDG C CSIP A EDG 8 EDG A EDG/1SW-E005 A EDG/1DG-E002 A EDG A CSIP/AH-9A 8 RHR 8 RHR 8 EDG B EDG 8 CSIP/ESCWC B EOG/1DG-E019 A EDG/1DG-E002 A EDG/1DG.E002 A EDG 8 EDG A EDG COMPLETE MAINTENANCE COMPLETE CORRECTIVE MAINTENANCE COMPLETE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COMPLETE CORRECTIVE HAINTENANCE COMPLETE MAINTENANCE COMPLETE CORRECTIVE MAINTENANCE COMPLETE CORRECTIVE HAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST CHECK XORHAL OIL LEVELS COHPLETE CORRECTIVE MAINTENANCE COMPLETE CALIBRATION COMPLETE CORRECTIVE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COMPLETE MAINTENANCE COMPLETE SCHEDULED TEST COHPLETE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COMPLETE TEST VERIFY SCREEH ROTATION WITH ESW PUMP RUNNING PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COMPLETE LP-9101A COMPLETE MAINTEHANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST RESTORE AH-9A VERIFY OIL LEVEL COMPLETE SCHEDULED TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST REFERENCE LER 90-017 FOR CORRECTIVE ACTION COMPLETE CORRECTIVE MAINTENANCE COHPLETE TEST COMPLETE CORRECTIVE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COHPLETE MAINTENANCE

Page 13 ATTACNHENT 'I DATE DURATION CAUSE SYSTEH/COMPONENT CORRECTIVE ACTION 07/26/90 07/31/90 08/02/90 08/02/90 08/08/90 08/10/90 08/10/90 08/13/90 08/14/90 08/20/90 08/21/90 08/27/90 08/28/90 08/30/90 09/04/90 09/05/90 09/10/90 09/12/90 09/14/90 09/24/90 09/25/90 10/07/90 10/11/90 10/12/90 10/22/90 -'IO/24/90 10/25/90 11/03/90 11/04/90 11/07/90 11/07/90 11/12/90 11/19/90 12/03/90 12/03/90 12/06/90 12/11/90 12/12/90 7.67 1.50 0.90 0.58 0.83 0.67 0.50 1.50 7.60 0.17 3.02 35.37 1.50 0.37 19.28 6.72 1.50 0.25 0.50 1.50 1.50 3.92 9.80 1.50 1.50 3.50 0.50 28.75 1.50 2.33 51.28 1.33 1.50 1 ~ 50 1.50 5.08 3.85 0.50 OIL CHANGE AND SAHPLE OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL BREAKER MOO PCR-3510 FR01 IMPLEHENT BREAKER FIELD MODIFICATION PUMP BONN THE A TRAIN SUHP INSIDE CONTAINHENT PCR-3510 480V BKR HODIFICATIOH OST-1008 1A-SA RHR PUHP OPERABILITY QUARTERLY INTERVAL OST-1073 1B-SB EDG OPERABILIT'Y MONTHLY INTERVAL OIL CHANGE AND ROUTINE PREVENTATIVE HAINTENAHCE REPLACE SPARE BREAKER MITH MODIFIED ORIGINAL PER PCR-3510 REMOVE ORIGINAL BKR AND INSTALL MODIFIED BKR PER PCR-35'IO REPLACE CAHSHAFT COVER GASKET AND CRANKCASE RELIEF VALVES OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL IHSTALL PCR-3510 TRANSHITTER FAILED HST-10078 PERFORM EPT-150 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL VALVE FAILED TO STROKE SHUT DURING OST-1215 OST-1092 1B-SB RHR PUHP OPERABILITY QUARTERLY INTERVAL OST-1013 1A-SA EDG OPERABILITY MOHTHLY INTERVAL OST-1085 1A-SA EDG OPERABILITY SEHIANNUALLY PERFORH MPT-H0011 VALVE COVER GASKET REPLACEMENT TROUBLESNOOTIHG PROBLEH IIITH COHTROL AIR LEAK OST-1073 1B-SB EDG OPERABILITY MOHTHLY INTERVAL OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL CHANGE OIL OST-1008 1A-SA RHR PUHP OPERABILITY QUARTERLY INTERVAL REPAIR LEAK ON EQUALIZIHG LINE OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL PERFORH LOOP CALIBRATIOH OH T-6522A DECHROHATING SKID ATTACHED ACROSS A CCM PUMP LINKAGE ON VALVE ACTUATOR IS BROKEN OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL OST-1086 1B-SB EDG OPERABILITY SEHIANNUALLY OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL CHANGE LUBE OIL PERFORH HPT-H0084 AND PM-M0074 OIL CHANGE OST-1092 1B-SB RHR PUMP OPERABILITY QUARTERLY INTERVAL ECCS EDG ECCS ECCS ECCS ECCS ECCS EDG ECCS ECCS ECCS EDG EDG ECCS ECCS EDG EDG EDG ECCS EDG EDG EDG EDG EDG EDG ECCS ECCS ECCS EDG ECCS ECCS ECCS EDG EDG EDG EDG ECCS ECCS A CSIP A EDG A RHR/1A2-SA-5A A RHR A RHR A RHR A RHR B EDG B CSIP A RHR B RHR A EDG A EDG B RHR A RHR/FT-605A 8 EDG/1QI-E006 B EDG A EDG/1SN-276 8 RHR A EDG A EDG 8 EDG 8 EDG 8 EDG A EDG A RHR A RHR B CSIP 8 EDG A CSIP/AH-9A A CSIP A CSIP/1SM-1055 A EDG B EDG 8 EDG A EDG B RHR B RHR COHPLETE MAINTENANCE AND VERIFY OIL LEVEL PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST RUN A RHR PUHP CHECK BREAKER OPERATION RACK IN ORIGINAL UNHODIFIED BREAKER COHPLETE PUHP DOMN COHPLETE MODIFICATION COHPLETE SCHEDULED TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COHPLETE HAINTENANCE CYCLE BKR OBSERVE NORHAL PHP OPERATION CYCLE BKR OBSERVE NORHAL PMP OPERATION COHPLETE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COHPLETE HDOIFICATION REPLACE TRANSHITTER RESTORE EQI PER EPT-150 PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST CLOSE 1Sll-276 COHPLETE SCHEDULED TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COHPLETE MAINTENANCE COHPLETE CORRECTIVE HAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COHPLETE HAINTENANCE COMPLETE SCHEDULED TEST COHPLETE CORRECTIVE MAIN'IENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COHPLETE LOOP CALIBRATION COMPLETE EPT-097 COHPLETE CORRECTIVE MAINTEHANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST &I 2 POST-TEST COHPLETE MAINTENANCE COHPLETE HAINTENANCE COMPLETE SCHEDULED TEST

Page 14 ATTACHMENT 1 DATE DURATION CAUSE SYSTEM/COMPONENT CORRECTIVE ACTION 12/17/90 12/18/90 12/27/90 12/31/90 12/31/90 01/02/91 01/08/91 01/12/91 01/14/91 01/22/91 01/22/91 01/22/91 01/22/91 01/24/91 01/28/91 01/28/91 02/11/91 02/11/91 02/11/91 02/12/91 02/12/91 02/14/91 02/25/91 02/26/91 02/27/91 03/02/91 03/06/91 03/11/91 03/11/91 03/13/91 03/13/91 03/14/91 03/14/91 03/14/91 03/20/91 03/25/91 03/29/91 03/31/91 37.68 1.50 37.92 1.50 4.17 10.15 4.35 0.47 1.50 8.67 4.52 30.33 30.33 9.72 1.50 8.08 1.02 14.38 1.50 1.18 57.28 0.50 1.50 1 ~ 57 42.58 0.50 7.37 1.50 1.50 5.50 0.95 0.13 1.50 8.72 3.00 1.86 1.50 1.50 INSPECT CYLINDER HEADS 8 REPLACE LEAK GASKET OST-1013 1A-SA EDG OPERABILITY MONTHLY IHTERVAL TROUBLESHOOT MHY VALVE HILL NOT OPEN OST-1073 18-SB EDG OPERABILI'TY MONTHLY INTERVAL AN-9A U/C TO REPLACE BELTS THIS INOPS A CSIP REPLACE PRESSURE SNITCH FOR 86 LO RELAY PERFORM LP-T-6502B LOOP CALIBRATIOH RETEST AUX RESERVOIR SCREENS ON Ml SPEED AFTER COIL REPLACEMENT OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL PERFORM EPT-300 ON CS-210( C CSIP MINIFLN ISOLATION PERFORH LOOP CALIBRATIOH LP-T-65228 PCR-5435 AND LIHITORQUE INSPECTION PCR-5435 AND LIMITORQUE INSPECTION ADJUST SEAL TAKE LO SAMPLES CHG OIL 8 GREASE IN COUPLING OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL PLANNED MAINTENANCE PERFORM LP-T-6589A LOOP CALIBRATIOH INSTALL HEN SHUTTLE VALVE OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL REPLACE BREAKER OH 1CS-946 INSTALL VOTES OH VARIOUS RHR VALVES PCR-5435 OST-1008 1A-SA RNR PUMP OPERABILITY QUARTERLY INTERVAL OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL PERFORM LOOP CALIBRATIOH ON TEMPERATURE LOOP B LOOP OUTAGE VARIOUS JOBS IN MODE 5-6 OST-1092 1B-SB RHR PUMP OPERABILI'TY QUARTERLY INTERVAL REPLACE QUICK VENT SHUTTLE VALVE OST-1085 1A-SA EDG OPERABILITY SEMIANNUALLY OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL BOTH CSIPS IHOP DUE TO 8 SEQUENCER RELAYS FAILIHG VOTES TESTING ON 1CS-182 8 CHILLER INOP DUE FAILED PERFORMANCE TESTS OST-1823 1A.SA EDG OPERABILITY 18 MONTH VOTES TESTING 8 TORQUE SNITCH SETTING VALVE TNERHALS OUT DURIHG OPERATION BOTH TRAINS OF ESll MERE REMOVED FROM SERVICE OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL OST-1073 1B-SB EDG OPERABILITY MOHTHLY INTERVAL EDG EDG ECCS EDG ECCS EDG ECCS EDG EDG ECCS ECCS ECCS ECCS ECCS EDG EDG EDG EDG EDG ECCS ECCS ECCS EDG EDG ECCS ECCS EDG EDG EDG ECCS ECCS ECCS EDG ECCS EDG ECCS EDG EDG A EDG A EDG A CSIP/1SI-1 B EDG A CSIP/AH-9A 8 EDG B RHR/AH-58 8 EDG A EDG 8 CSIP B CSIP/AH-9B 8 RHR/1RH-69 8 CSIP/1SI-2 A CSIP 8 EDG 8 EDG A EDG/1EV-A86A A EDG A EDG A CS IP/1CS-946 A RMR A RHR 8 EDG A EDG/EBBA 8 RHR B RHR 8 EDG A EDG A EDG 8 CSIP/B SEQ A CSIP/1CS-182 B CSIP/ESCIIC A EDG A CSIP/1CS-182 A EDG/1'-270 RHR/ESM/CCll A EDG 8 EDG COMPLETE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST F 2 POST-TEST COMPLETE CORRECTIVE MAINTEHANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST. TEST COMPLETE CORRECTIVE MAINTENANCE COMPLETE CORRECTIVE MAINTENANCE COMPLETE LP-T-65028 COMPLETE MAINTENANCE AND TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE PERIODIC TEST COMPLETE LOOP CALIBRATION COMPLETE MODIFICATION AND INSPECTION COMPLETE MODIFICATION AHD INSPECTION VERIFY PROPER OIL LEVEL 8 NO OIL LEAKS PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE MAIHTEHANCE COMPLETE LOOP CALIBRATION COMPLETE VALVE REPLACEMEHT PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST VERIFY VALVE STROKES COMPLETE TEST AND MAIHTEHANCE COMPLETE SCHEDULED TEST PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE LOOP CALIBRATION COMPLETE MAINTENANCE COMPLETE SCHEDULED TEST COMPLETE VALVE REPLACEMENT PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST PERFORM 3 AIR ROLLS - 'I PRE-TEST 8 2 POST-TEST REFERENCE LER 91-005 FOR CORRECTIVE ACTIOH COMPLETE TESTING REFERENCE LER 91-004 FOR CORRECTIVE ACTION PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE TESTING COMPLETE CORRECTIVE MAINTENANCE REFERENCE LER 91-007 FOR CORRECTIVE ACTION PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST PERFORM 3 AIR ROLLS'- 1 PRE-TEST 8 2 POST-TEST

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Page 15 ATTACHMENT 1 DATE DURATION CAUSE SYSTEH/COMPONENT CORRECTIVE ACTION 04/16/91 04/16/91 04/18/91 04/18/91 04/24/91 04/24/91 04/25/91 05/01/9'I 05/04/91 05/04/91 05/07/91 05/07/91 05/08/91 05/08/91 05/08/91 05/12/91 05/23/91 05/24/91 05/29/91 06/02/91 06/05/91 - 06/05/91 06/05/91 06/12/91 06/12/91 06/17/91 06/19/91 06/20/91 06/20/91 06/20/91 06/20/91 06/20/91 06/20/91 06/20/91 06/20/91 06/20/91 06/21/91 07/01/91 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1'0 OST.1823 1A-SA EDG OPERABILITY 18 MONTH 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1823 1A-SA EDG OPERABILITY 18 MOHI'H 0.50 OST-1092 1B-SB RHR PUHP OPERABILITY QUARTERLY INTERVAL 0.50 OST-1008 1A-SA RHR PUMP OPERABILITY QUARTERLY IHTERVAL 1.50 OST 1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1824 1B-SB EDG OPERABILITY 18 MONTH 1.50 OST-1073 1B-SB EDG OPERABILITY MOHTHLY IHTERVAL 1.50 OST-1824 1B-SB EDG OPERABILITY 18 MONTH 1.50 OST-1824 18-SB EDG OPERABILITY 18 MONTH '.50 OST-1824 18-SB EDG OPERABILITY 18 MONTH 0.38 DISCHARGE VALVE SHUT FOR STROKING SI VALVES 0.08 DISCHARGE VALVE SHUT TO STROKE 1SI-107 0.88 DISCHARGE VALVE SHUT TO STROKE 'IS1-107 144.00 RUST BOROH HIGHER THAN ALLOMED 5.53 REPLACE GENERATOR BEARING TEMPERATURE SNITCH 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 5.62 OIL COOLER SERVICE MATER LEAK 1.42 SHEAR PIN BROKEN OH AUX TRAV SCREEN 1'0 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 12.92 REPAIR/REPLACE 1DFO-213 VALVE 1.50 OST-1086 18-SB EDG OPERABILITY SEMIANNUALLY 0.25 PACKING ADJUSTMENT RESULTS IN LOSS OF ECCS 0'0 CCll FLSI TO A RHR PUMP llAS LOST 0.50 OST-1092 18-SB RHR PUMP OPERABILITY QUARTERLY INTERVAL 3.17 BELT INSPECTIOH 9.25 TIGHTEN BELTS 25.67 REPLACE STRAINER 22.42 STRAIGHTEN UPPER STEH ON VALVE 1CC-142 1.63 COMPLETE LP-T-6502A LOOP CALIBRATIOH 9.25 CHANGE OIL IH PUHP 27.82 INSP ~ ST AIR CAM, REPAIR OIL LEAK ON HUMPHREY VALVE 2.97 PERFORH CALIBRATION PIC-l032 25.67 IHSPECT/REPLACE UPPER MOTOR BEARING 27.82 INSPECT SUCTION STRAINER 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL EDG EDG EDG EDG ECCS ECCS EDG EDG EDG EDG EDG EDG ECCS ECCS ECCS ECCS EDG EDG ECCS EDG EDG EDG EDG ECCS ECCS ECCS ECCS ECCS EDG ECCS ECCS ECCS EDG ECCS EDG .EDG EDG EDG A EDG A EDG A EDG A EDG 8 RHR A RKR 8 EDG B EDG 8 EDG 8 EDG B EDG 8 EDG A CSIP A CSIP A CSIP RUST A EDG A EDG 8 CSIP 8 EDG 8 EDG 8 EDG 8 EDG 8 CSIP/A RHR/CQI A RHR B RHR 8 CSIP/AH-98 A CSIP/AH-9A A EDG/1SII-E041 A RHR/1CC-147 A RKR/AH-SA A CSIP A EDG A RHR/RH-602ASll A EDG/1SH-E005 A EDG/1DFO-E002 A EDG 8 EDG POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST POST-TEST CT ION POST-TEST POST-TEST POST-TEST CT ION POST-TEST-POST-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 COMPLETE SCHEDULED TEST COMPLETE SCHEDULED TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 COMPLETE TESTING COMPLETE TESTING COMPLETE TESTING REFERENCE LER 91-011 FOR CORRECTIVE A COMPLETE CORRECI'IVE MAINTENANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST 8, 2 COMPLETE CORRECTIVE MAIHTEHAHCE REPAIR, VERIFY PROPER OPERATION PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 REPLACE LEAKING VALVE PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 REFERENCE LER 91-014 FOR CORRECTIVE A RESTORE CCLI FLml COMPLETE SCHEDULED TEST INSTALL NEM BELTS COMPLETE BELT ADJUSTMEHTS COMPLETE CORRECTIVE MAINTENANCE COMPLETE CORRECTIVE MAIHTEHAHCE COMPLETE LOOP CALIBRATIOH COMPLETE MAINTENANCE COMPLETE INSPECTIONS AND MAINTENAHCE COMPLETE CALIBRATION REPLACE MOTOR BEARINGS COHPLETE INSPECTIONS PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2

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Page 16 ATTACHMENT 1 DATE 'DURATIOH CAUSE SYSTEH/COHPONENT-CORRECTIVE ACTION 07/03/91 07/06/91 07/16/91 07/16/91 07/17/91 07/26/91 07/28/91 07/29/91 07/30/91 07/30/91 08/01/91 08/07/91 08/11/91 08/13/91 08/16/91 08/16/91 08/29/91 08/30/91 08/31/91 08/31/91 09/04/91 09/09/91 09/09/91 09/09/91 09/16/91 09/20/9'I 09/24/91 10/02/91 10/07/91 10/08/91 10/17/91 10/21/91 10/22/91 10/23/91 10.30 INSPECT/PUMP AND CHANGE OIL 3.13 REPLACE DIRTY LUBE OIL FILTER 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 3.68 REPAIR MELD LEAK ON EQUALIZING LINE 0.50 OST-1008 1A-SA RHR PUMP OPERABILITY QUARTERLY INTERVAL 2.67 SMAPPIHG TO 1B-SB CSIP 10.22 1RH-31 lIILL HOT AUTO OPEN ON LOM FLOM 1'0 OST-1073 18-SB EDG OPERABILITT HONTHLY INTERVAL 0.50 OST-1092 18-SB RHR PINP OPERABILITT QUARTERLY INTERVAL 0 F 50 OST-1092 18-SB RHR PUMP OPERABILITY QUARTERLY INTERVAL 0.73 INSTALL TEST EQUIPHENT FOR EPT-184 1.62 CALIBRATE FS-69058-SB 22.18 DISASSEMBLE, BEHCH TEST & REPLACE RELIEF VALVE 1.50 OST-1013 1A-SA EDG OPERABILITY MONTHLY IHTERVAL 1.23 INSTALL TEST EQUIPMENT FOR EPT-183 15.00 RUNNING 2 PUMPS CAUSES 1CC-145 To LIFT 5.78 PERFORMANCE OF LP-T-6904B 1.50 OST-1073 18-SB EDG OPERABILITY HOHTHLT IHTERVAL 10.68 PRESS. QIITCH MOULD NOT RESET DURIHG OST-1215 5.18 MOULD NOT DEVELOP REQ'D FLOM IAM OST-1215 4.43 PERFORM LOOP CALIBRATIONS ON LP-T-6904A 0.58 FAILED EPT-033 1.50 OST-1085 1A-SA EDG OPERABILITY SEMIANNUALLY F 50 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 0.50 OST-1092 1B-SB RHR PUMP OPERABILITY QUARTERLY INTERVAL 1.50 LOOP CALIBRATIONS 1.50 OST-1073 1B-SB EDG OPERABILITY MONTHLY INTERVAL 2.57 MORK ON DG-045B 1 MOTOR OPERATED DAMPER 1'0 OST-1013 1A-SA EDG OPERABILITY MONTHLY INTERVAL 0.50 OST-1008 1A-SA RHR PUMP OPERABILITT QUARTERLY INTERVAL 0.90 PACKING ADJUSTMENT 1.50 OST-1073 18-SB EDG OPERABILITY MONTHLY INTERVAL 0.50 OST-1092 1B-SB RHR PUMP OPERABILITY QUARTERLY INTERVAL 59.00 INOPERABLE To CLEAN EQI SCREEN IIASH PUHP ECCS EDG EDG ECCS ECCS ECCS ECCS EDG ECCS ECCS ECCS EDG 'CCS EDG ECCS ECCS EDG EDG EDG EDG EDG EDG EDG EDG ECCS EDG EDG EDG EDG ECCS ECCS EDG ECCS EDG 8 CSIP 8 EDG A EDG 8 CSIP A RHR C CSIP A RHR 8 EDG 8 RHR B RHR 8 CSIP/1CS-755 A EDG/AH-85 8 RHR/1CC-165 A EDG A CSIP/1CS-744 A RHR/1CC-145 8 EDG 8 EDG B EDG/8752BSB 8 EDG/1SC-BAY6 A EDG A EDG/A SEQ A EDG A EDG 8 RHR A EDG 8 EDG 8 EDG/1DG-E019 A EDG A RHR A CSIP/1CS-182 8 EDG 8 RHR A EDG/ESM COMPLETE OIL CHANGE COHPLElE CORRECTIVE MAINTEHANCE PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST LEAK CHECK EQUALIZING LINE COHPLETE SCHEDULED TEST COHPLETE SMAP COMPLETE CORRECTIVE MAINlENANCE AND CALIBRATION PERFORM 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COHPLETE SCHEDULED TEST COHPLETE SCHEDULED TEST COMPLETE TESTING REMOVE TEST EQUIPMENT COHPLETE CALIBRATIONS COHPLETE TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COHPLETE TESTING REHOVE TEST EQUIPMENT COMPLETE CORRECTIVE MAINlENANCE COHPLETE CALIBRATIONS PERFORM 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COHPLETE CORRECTIVE MAINTENANCE COHPLETE CORRECTIVE MAINTENANCE COMPLETE LOOP CALIBRATIOHS COMPLETE PERIODIC TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COHPLETE SCHEDULED TEST COHPLETE LOOP CALIBRATIONS PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COMPLETE CORRECTIVE HAIHlENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST & 2 POST-TEST COHPLETE SCHEDULED TEST COHPLETE CORRECTIVE MAINTENANCE PERFORH 3 AIR ROLLS - 1 PRE-TEST 8 2 POST-TEST COMPLETE SCHEDULED TEST COMPLETE CORRECTIVE MAINlENANCE

ATTACHMENT 2 ACCUM AH ALT BKR CCW CM CSIP EDG ESCWC ESW EPT EQ FO FR FREQ FS HFA HVAC IND INOP INSP ISI LER LO LVL MOD MOV MST OOS OST PCR PMP RECIR RHR RWST SAT SEQ TS VLCO XFER Accumulator for low head injection Air handler Alternate Circuit breaker Component cooling water Corrective maintenance Charging.safety injection pump for high h Emergency diesel generator Essential service chilled water chiller Emergency service water Engineering periodic test Equipment qualification (environmental) Fuel oil Field revision Frequency Flow switch A type of "General Electric" relay Heating ventilation air conditionxng Indicator Inoperable Inspection Inservice inspection Licensee event report Lock out Level Modification Motor operated valve Maintenance surveillance test Out of service Operations surveillance test Plant change request. Pump Reczrculating Residual heat removal system for low head Reactor water storage tank Satisfactory Sequencer Technical specification Voluntary lzmited condition of operation Transfer ead safety injection safety injection GLOSSARY OF TERMS/ABBREVIATIONS USED ON ATTACHMENT

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