REGULATORY 1I@RMATION DISTRIBUTION SYST (RIDS)

ACCESSION NBR:8304130393 DOC.DATE: 83/04/12 NOTARIZED: NO DOCKET # FACIL:50-361 San Onofre Nuclear Station, Unit 2, Southern Californ 05000361 AUTHNAME AUTHOR AFFILIATION

BASKINP,.Pt Southern California Edison Co. RECIP.NAME RECIPIENT AFFILIATION KNIGHTNGW,. Licensing Branch 3

SUBJECT: Forwards ECCS outage rept for 1982 per NUREG-0660 & NUREG-0737,Item IIK.3,17,Insufficient info exists to warrant changes in maint programs or Tech Specs concerning ECCS.

DISTRIBUTION CODE: BOOS COPIES RECEIVED:LTR i. ENCL , SIZEJL,.... TITLE: Licensing Submittal: PSAR/FSAR Amdts & Related Correspondence

NOTES:J Hanchett Icy PDR Documents. ELD Chandler icy, 05000361 NRR Scaletti icy,

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTIR ENCL ID CODE/NAME LTTR ENCL

NRR/DL/ADL 1 0 NRR L83 BC . 0 NRR LB3 LA 1 0 ROODH, 01 1 1

INTERNAL: ELD/HDS2 1 0 IE FILE 1 1 IE/DEPER/EPB 36 3 3 IE/DEPER/IRB 35 1 1 IE/DEQA/QAB 21 1 1 NRR/DE/AEAB 1 0 NRR/DE/CEB 11 1 1 NRR/DE/EHEB 1 1 NRR/DE/EQB 13 2 2 NRR/DE/GB 28 2 2 NRR/DE/HGEB 30 1 ..1 NRR/DE/MES 18 1 1 NRR/DE/MTEB 17 1 1 NRR/DE/SAB- 24 1 1 NRR/DE/SGEB 25 2 2 NRR/DHFS/HFES40 1 1 NRR/DHFS/LQB 32 1 1 NRR/DL/SSPB 1 0 NRR/DSI/AEB 26 1 1 NRR/DSI/ASB 1 1 NRR/DSI/CPB 10 1 1 NRR/DSI/CSB 09 1 1 NRR/DSI/ICSB 16 1 1 NRR/DSI/MET8 12 1 1 NRR/DSI/PS8 .19 1 1 N RAB 22 1 1 NRR/DSI/RSB 23 1 1 UG FILM-3 04 1 1 RGN5 3 3 R R7RMIB 1 0

EXTERNAL; ACRS 41 6 6 BNL(AMDTS ONLY) 1 1 DMS/DSS (AMDTS) 1 1 FEMA-REP DIV 39 1 1 LPOR 03 1 1 NRC PDR 02 1 1 NSIC 05 1 1 NTIS 1 1

NOTES: 3 3

TOTAL NUMBER OF COPIES REWUIRED: LTTR 57 ENCL 50

Southern California Edison Company P. 0. BOX 800

2244 WALNUT GROVE AVENUE

ROSEMEAD. CALIFORNIA 91770

K. P. BASKIN TELEPHONE

MANAGER OF NUCLEAR ENGINEERING, April 12, ]983 (213) 572-1401

SAFETY, AND LICENSING

U. S. Nuclear Regulatory Commission Director, Office of Nuclear Reactor Regulation Attention: Mr. George W. Knighton, Branch Chief

Licensing Branch No. 3 Washington, D.C. 20555

Gentlemen:

Subject: Docket No. 50-361 Emergency Core Cooling System Outage Report - 1982 San Onofre Nuclear Generating Station, Unit 2

Pursuant to Section II.K.3.17 of the NUREG-0660/0737 Volume of the San Onofre Nuclear Generating Station, Units 2&3 FSAR, enclosed is the report concerning Emergency Core Cooling System (ECCS) outages. This report covers the period from fuel load to December 31, 1982 and includes the ECCS component, cause of outage, duration of outage and corrective actions taken to return the component to operable status. For purposes of this report, the components of the ECCS have been subdivided into the following categories: Containment Spray (CNSP), High Pressure Safety Injection (HPSI), Low Pressure Safety Injection (LPSI), Chemical and Volume Control System (CVCS), Shutdown Cooling (SDC), Safety Injection Tanks (SIT) and Charging (CHRG).

The enclosed report contains 140 entries of which the downtimes are fairly evenly divided among the different systems. The outage causes can be summarized as follows:

1. Component Failure 26%

2. Preventive Maintenance 7%

3. - Surveillance Testing 5%

4. Inservice Inspection 4%

5. Corrective Maintenance* 58%

*Correcting deficiencies in construction, wiring or configuration

8304130393 83041 2 PDR ADOCK 05000361 R PDR

Mr. George W. Knighton -2- April 12, 1983

Most of the ECCS outages involved periods when the.systems were not needed and therefore received a lower maintenance priority, thus the outage duration is not a reflection of problems associated with the ECCS. Additionally, the corrective maintenance is expected to be reduced substantially in future years since the plant was in the initial startup phase during this reporting period. Based on this, it is our position that there is insufficient information to warrant changes in maintenance programs or Technical Specifications concerning the ECCS . We will re-evaluate this position following the next annual report to be submitted by March 31, 1984.

If there are any questions regarding this report, please contact me.

Sincerely,

Enclosure

cc: A.E. Chaffee (USNRC Resident Inspector, Units 2 and 3)

R.J. Pate (USNRC Resident Inspector, Units 2 and 3)

U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement

H. Rood, Project Manager, Licensing Branch No. 3

U.S. Nuclear Regulatory Commission Office of Management Information and Program Control (MIPC)

Institute of Nuclear Power Operations (INPO)

SONGS 2 ECCS OUTAGE DATA FOR SYSTEM

COMPONENT NAME OuTAGE TYPE START DATE START TIME DURATION COMMENTS - - - - - - - - - - - - - - - - - - - -i- - - - - - - - - - - - - - - - - - - - - - - - -------------------------------------------

02/19/82 13:10 SONGS 2 COMMENCED INITIAL FUEL LOAD.

0

SONGS 2 ECCS OUTAGE DATA FOR CHRG SYSTEM

COMPONENT NAME O TAGE TYPE START DATE START TIME DURATION COMMENTS

CHRGNG PUMP DR SURVEILLANCE TST CHRGNG PUMP HDR VALVE RETURNED TO SERVIC

E FOLLOWING ELECTRICAL SURVEILLANCE. PUMP P190 CuRRECTIVE MNT PERFORMED MAINTENANCE TO REPAIR LEAKING

VALVE FLANGE 2PSV-9225. VALVE 2HV-9200 1I5 TESTING COAR (UNIDENTIFIED) FOLLOWING FAILURE 0

F ISI TEST. CHRGNG PUMP TO REGEN HXER. ISOLATION VALVE CuRRPE:TIVE MNT PERFORMED MAINTENANCE TO REPAIR LEAKING

LOOP IA CHARGING PUMP ISOLATION VALVE. SOLENOIC VALVE COMP FAILURE 03/26/82 4:00 PERFORMED INSPECTION OF SOLENOID VALVE

CHARGING PUMP DISCHARGE TO REGEN MXER. GRAV ORN VLV CuRRECTIVE MNT 04/04/82 10:40 ADJUSTED LIMIT SWITCH. LOW VCT LEVEL CAU

SING VLV OPENING DELAY/CHRGNG PUMP TRIP PUMP P190 COMP FATLURE 05/21/82 15:00 62:20 REPLACED PACKING AND SETSCREW ON DISCHAR

GE RELIEF VALVE TO STOP LEAKAGE. PUMP P190 CURRECTIVE MNT 05/30/82 9:00 3:00 PERFORMED MAINTENANCE TO RELOCATE OUTPUT

I WIRES FROM ONO* TO wNCN CONTACTS.

PUMP P192 DRN VV CORRECTIVE MNT 06/03/82 21:30 18:50 CLEANED, INSPECTED AND RETORGUED IMPROPE

RLY TORGUED KEROTEST DRAIN VALVE. SEAL WATER PUMP CuMP FAILURE 07/09/82 10:20 76:56 INITIATED NCR-P503 TO REPAIR BROKEN PROP

ELLER INSIDE SEAL WTR PUMP FLOW TXMTER. PUMP P191 CORRECTIVE MNT 07/13/82 12:0C 80:00 INITIATED NCR-P517 WO 10395 TO REPAIR

PLUNGER AND PLUNGER ADAPTOR THREADS. PUMP P190 CUMP AILURE 07/16/82 21:25 62:35 REPLACED OIL SEALS, HIGH SPO SHAFT & PIN

ION GEARS IN GEAR REDUCTION BOX PUMP P192 COMP FAILURE 07/21/82 9:20 REMOVED PLUNGER, PLUNGER ADAPTOR AND ASS

EMBLY. FINAL RESOLUTION NOT STATED. PUMP P191 CMP FAILURE 07/23/82 20:20 30:40 REPLACED CHARGING PUMP DISCHARGE VALVE P

ACKING ADJUSTING RING. PUMP P191 CORRECTIVE MNT 07/23/82 20:20 33:40 ALSO 21208MU075/102 VENT L ORN VALVES.

REM4OVED KEROTEST VLVCLEANED AND LAPPED PUMP P191 CuMO FAILURE 07/23/82 21:25 14:35 DISCHARGE RELIEF VALVE REMOVED FOR MAINT

ENANCE. REPAIRED LEAK AND REINSTALLED. PUMP P020 CORRECTIVE MNT 12/08/82 8:40 1:05 RECALIBRATED LEVEL SWITCH ON SPRAY CHEM

TANK TPM TO CORRECT PUMP P020 CUT OUT. PUMC' P021 C&RPECTIVE MNT 12/08/82 10:30 0:30 RECALIBRATED LEVEL SWITC T ON SPRAY CHEM

SONGS 2 ECCS OUTAGE DATA FOR CHRG SYSTEM

COMPONENT NAME OuTAGE TYPE START DATE START TIME DURATION COMMENTS -------------- --- --- ---- ---------------------------- ----------------------- -------------------------- -------------------------------- ---------TANK T105 TO CORRECT PUMP P021 CUT OUT.

PUMP P191 CORRECTIVE MNT 12/14/82 0:o 00621 PERFORMED LEAK TEST ON N2 FILL/BLEED VLV TO VERIFY ACCUMULATOR LEAKAGE CORRECTED

PUMP P191 PREVEvTATIVE MNT 12/14/82 0:a0 621 PERFORMED MAINTENANCE TO CORRECT OIL LEAKS FROM VALVE AND ADDED OIL TO PUMP.

SONSS 2 ECCS OUTAGE DATA FOR CNSP SYSTEM

COMPONENT NAME OUTAGE TYPE START DATE START TIME DURATION COMMENTS

CNTMT SPRAY PUMP CORRECTIVE MNT S21204MP0129013. REMOVED TEMPORARY VENT VALVES AND INSTALLED PLUGS.

CONTMT SUMP PUMP I)I TESTING 03/22/82 5:20 FAILED BREAKER TEST.

CONTAINMNT SPRAY CORRECTIVE MNT 04/07/82 18:40 2:09 LCOAR 82-046. INSTALLED 24VDC WIRING FOR MANUAL-AUTO INDICATION.

SPRAY CHM ADD SY SwRVEILLANCE TST 04/22/82 20:10 423 PERFORMED OPERABILITY TEST AND SYSTEM FL

USH PER S023-3-2.7.

SPRAY C4M TK CORRECTIVE MNT 04/28/82 7:00 58:30 PERFORMED LOOP CALIBRATION FOR N2 PRESSU RE INDICATION IN TANK T105.

FLOW INDICATORS CuRRECTIVE MNT 04/29/82 14:35 164 LCOAR SP2-82-085. PERFORMED LOOP CALIBR ATION OF FLOW INDICATORS.

CNTMT EMER SUMP SURVEILLANCE TST 06/16/82 21:30 73:45 PERFORMED LOOP VERIFICATION AND CHANNEL

CHECK ON LEVEL INDICATOR.

CNTMT SPRAY TANK COMP FAILURE 06/19/82 9:00 484 PERFORMED MAINTENANCE ON CHEM STORAGE TA

NK RELIEF VALVE TO REPLACE GASKETS.

CNTMT SPRAY PUMP COMP FAILURE 07/10/82 16:00 84:30 LCOAR 82-140. REPLACED FAILED MOTOR CAU

SED BY OIL LEAK IN LOWER BEARING.

PUMP P013 CORRECTIVE MNT 07/21/82 22:00 42:00 PERFORMED MAINTENANCE TO TIGHTEN PACKING

NUT ON DRAIN VALVE TO STOP LEAK.

P012 DRAIV VALVE CQMP CAILURE 07/30/82 21:08 1416 PERFORMED MAINTENANCE TO REPAIR BROKEN

STEM BALL-BEARING AND LAPPED DISC.

CHEM ADDN VALVES COMP FAILURE 08/18/82 1:00 104 REPLACED SOLENOIDS ON CONTAINRENT SPRAY

CHEMICAL ADDITION VALVES.

T105 CHEM ADD TK COMP FAILURE 10/02/82 13:00 368 REPLACED VLVE 521204MR008 WHEN DISC WAS

FOUND TO BE BEYOND DRESSING TO FIN LEAK

SPRAY CH'C TANK CURRECTIVE MNT 10/16/82 0:00 356 INSTALLED NEW GASKET AND BLANK FLANGE ON

MINI FLOW RECIRCULATION LIE FOR T105.

SPRAY CHEM TANK Cfo"P FAILURE 10/25/82 16:15 33:52 LCOAR 2-82-164. REPLACED TORN MANWAY GAS

KET TO REPAIR LEAK.

CHEM ADDTN PUMP CORRECTIVE MNT 11/05/82 20:50 1:53 - REMOVED JUMPERS FROM CHEM ADDITION PUMP

P020 TO CONTROLLER. DISPOSITIONE MCRA.

CHEM ADDTv TANK CORRECTIVE MNT 12/22/82 5:50 174 PERFOR4ED MAINTENANCE TO DRAIN AD FLUS

T105 FOLLOWING CNEXISTRY iCoSISTENCY

CON:DONENT NAME nQTAGE TYPE C--- - -E- -- A-- - .T. TY START DATE START TIME DURATION COMMENTS

PUMP P174 CURRECTIVE MNT PUMP P17kCURR CTIV MN!PERFORMED MAINTENANCE To REPAIR LEAKING

PUMP MECHANICAL SEALPUMP P175 CURRECTIVE MNT PERFORMED MAINTENANCE TO REPLACE SEALS

IN BORIC ACID MAKE-UF PUMP. BORONOMETER CORRECTIVE MNT PERFORMED CALIBRATION ON BORONOMETER 2AE

-0203. BORONOMETER SURVEILLANCE TST PREPARED WORK ORDER TO REPAIR METER FOL

OWING FAILURE OF OPERABILITY TEST. HEAT TRAING CMP FAILURE REPLACED BORIC ACID HEAT TRACING ELEMENT

IN CIRCUIT 2L267-35. ISOLATIDMv VALVE 141 TESTING ISOLTIOVVALE 14 TESINGCOMPLETED ISI TEST AND RETURNED LETDOWN

ISOLATION VALVE TO SERVICE. PUMP P174 COMP FAILURE 03/30/82 10:15 235 REPLACED BROKEN CARBON RING IN THE BACKUP RING OF BORIC ACID PUMP P174. PUM> P174 CORRECTIVE MNT 03/31/82 14:50 CLEARANCE GIVEN TO DISASSEMBLE AND REPA

IR BORIC ACID MAKE-UP PUMP P174. BORONOMETER CORRECTIVE MNT 04/03/82 3:15 140 CHECKED FLOW ELEMENT TO DETERMINE CAUSE OF NO FLOW INDICATION AND CLEARED. PUM2 174 COMP AILURE 04/09/82 23:59 89:01 PULLED PUMP AND REPLACED IMPELLER.

BA RELIEF VALVES CORRECTIVE MNT 04/17/82 2:30 332 S21218PSV2452 4 9 RELEIF VLVS DISASSEMBLE

D AND INSPECTED TO SET PRESSURE RELIEF. MAKE-UP LINE CORRECTIVE MNT 04/19/82 23:20 252 CLEARED BLOCKAGE IN MAKE-UP LINE* TESTED

HEAT TRACE CIRCUITS LETDWN BLOCK VLV CORRECTIVE MNT 04/30/82 15:00 0:20 PERFORMED MAINTENANCE ON LEAKING VALVE

2HV-9204. BORONOMETER CURRECTIVE MNT 05/02/82 10:00 52:30 PERFORMED MAINTENANCE TO FREE FLOAT STIC

KING DUE TO EXCESS_.FLOW. PUMP P174 CUMP FAILURE 05/03/82 9:25 17:20 REPLACED MISSING SUCTION FLANGE GASKET TO CORRECT LEAKAGE FROM FLANGE. PUMP P174 CURRECTIVE MNT 05/04/82 13:10 132 RECIRCULATION VALVE DISASSEMBLED AND REP AIRED TO CORRECT LEAK. FLOW TRANSITTER COMP FAILURE 06/04/82 8:00 :o0 REPLACED FAILED FLEX CONDUIT FOR FLOW TR ANSMITTER 2FE210Y. BORONOMT'R CwRRECTIVE MN! 06/12/2 8:45 3:15 PCOAR 82-O . ADJUSTED DETECTOR COMPENSA

SONGS 2 ECCS OUTAGE DATA FOR CVCS SYSTEM COMOONENT NAMr OWTAGE TYPE

----- ---- -- f.. .Sil .-- -- ---

T- DATE--R-----R

BORONOMETER CORRECTIVE MNT 06/15/82 0:08 9:52 L3E R O PI UM P174 CORRECTIVE MNT 06/27/82 4:00 512 BORIC ACID P174 INOP WHILE TIGHTENING

COMPRESSION NUT ON DSCHG VALVE TUBING.

RELIEF VALVE CORRECTIVE MNT 07/16/82 3:52 335 PERFORMED MAINTENANCE TO REPAIR LEAKING BORIC ACID RELIEF VALVE 2PSV-9249o

BORONOMETER CORRECTIVE MNT 0 .7/21/82

INVESTIGATION TO EVALUATE INCREASED FLOW

THROUGH BORONOMETER.RESDLUTION UNKNOWN

LATOR TO CORRECT HIGH INDICATION.

LTDWN FLOW TX'qTR COMP FAILURE 08/14/82 10:45 1:C PERFORMED MAINTENANCE TO REPLACE MANIFOL

D GASKETS AND TIGHTEN FITTINGS.2FT-3.0 2

P020 CAUSTIC INJ PfEVENTATIVE MN IT 09/19/82 11:05 244 CALIBRATION OF CAUSTIC SUCTION PRESSURE PUM5 P174 CioRRECTIVE MNT 10/01/82 O:01 482 PERFORMED MAINTENANCE TO CLEAR PLUG IN

DRAIN LINE

OF P174 AND LEAK

TEST. LETDOWN VALVE COMP FAILURE 10/05/82 21:30 86:30 DISASSEMBLED TO INSPECT VALVE INTERNALS.

FINAL DISPOSITION NOT STATED. LETOWN VALVE SURVEILLANCE TST 11/28/82 o:o 467 TESTED VALVE TO DETERMINE OPERABILITY FO

LLOWING ERRATIC OPERATION. CLEARED.

SONGS 2 ECCS OUTAGE DATA FOR HPSI SYSTEM

COMPnNENT NAME OUTAGE TYPE START DATE START TIME DURATION COMMENTS

SIAS-CIAS CuRRECTIVE MNT WIRING FOR MANUAL PUSH BUTTONS REVERSED

IN TRIP PATH ACTUATION.CDRRECTED WIRING PUMP P019 CORRECTIVE MNT REMOVED HPSI-019 FROM SERVICE TO INSTALL

MINI FLOW BYPASS ORIFICE. PUMP P019 II TESTING 03/22/82 15:20 PUMP FAILED ISI TEST WITH FLOW OF 6406PM

PERFORMED MAINTENANCE TO CORRECT FLOW. MPSI P017 CORRECTIVE MNT 03/26/82 5:00 PERFORMED BEARING MODIFICATION ON PSI P

017.

HOT LEG LOOPI CURRECTIVE MNT 04/02i82 12:25 289 COAR SP2-82-032. REMOVED ORIFICE FOR 0 ACHINrNGTO CLEAR PLUG

HPSla2 kOT LEG CORRECTIVE MNT 05/06/82 19:27 0:13 FLOW TXMTR FLANGE LEAKING DUE TO LOOSE FITTING. REMOVED FITTING AND REPAIRED.

COLD LEG "LO IND CuRRECTIVE MNT 05/14/82 8:00 7:30 INDICATOR SHOWING FLOW WHEN NO FLOW EXIS TS. RECALIBRATED INDICATOR.

CCW FROM HPSI 18 CQRRECTIVE MNT 05/24/82 21:26 47:34 LOOP A- FLOW IND FLUCTUATING OFF-SCALE. RECALIBRATED AND PERFORMED CHANNEL CHEC

ISOLATN 2HV-9434 CuRRECTIVE MNT 06/01/82 6:45 1:40 TIGHTENED PACKING GLAND NUTS ON LEAKING

ISOLATION VLV (LO3PI HOT LEG INJECTION) HPSI HOR 3RN VLV COMP FAILURE 06/20/82 4:30 18.1 DISASSEMBLED VLV TO REPLACE FAILED BEARI

NGS AND BEN~T DIAPHRAGMS. PUMP P019 CLMP FAILURE 07/14/82 20:30 255 INITIATED NCR-P524 9 WO 10675 TO REPLACE

BYPASS VALVE DAMAGED BY THROTTLING. P019 TRAIN 09" CORRECTIVE MNT 08/07/82 22:30 71:30 CLEANED THREADS ON NIPPLES AND PIPE CAPS

OF CASING AND S21204MR105 DRAIN. PUMP P017 BYPASS CuMP FAILURE 08/27/82 15:10 202 REPLACED S21204MU184 MINIFLO BYPASS VLV

SEAT FOLLOWING DAMAGE FROM THROTTLING. PUMP P017 PREVENTATIVE MNT 09/15/82 8:00 52:00 PERFORMED ROUTINE MAINTENANCE TO CHANGE

OIL IN HPSI P017. PUMP P018 PnEVENTATIVE MNT 09/15/82 8:00 52:00 PERFORMED ROUTINE AINTENANCE TO CHANGE

OIL IN Hpsi P018. PUMP P019 PAEVENTATIVE MNT 09/15/82 8:00 52:00 PERFORMED ROUTINE AINTENANCE To CHANGE

OIL IN HPSI P019. PUMC P017 PmEVENTATIVE MNT 09/23/82 8:20 93:10 PERFORMED ROUTINE MAINTENANCE TO CHANGE OIL IN HPSI P019o PUMP PolP CORRECTIVE

ENT 09/24/82 1:10 895 INSTALLED ADDITIONAL PACKING RINGS TO CC

SONGS 2 ECCS OUTAGE DATA FOR HPSI SYSTEM

COMPONENT NAME OUTAGE TYPE START DATE START TIME DURATION COMMENTS ------------------------------------------------------------------------------------------------------------------------------------------------

RRECT DISCHARGE VALVE LEAKAGE.

PUMPS P017919 PkEVENTATIVE MNT 09/26/82 9:30 169 ADDITIONAL WORK DONE ON ECF 2-82-6085. OIL CHANGED IN HPSI PUMPS.

PUMP P017 CUJRRECTIVE MNT 09/26/82 20:00 286 INSTALLED ADDITIONAL PACKING RINGS IN DI SCHARGE VALVE TO ALLOW FOR ADJUSTMENT.

2FO-9434 ORIFICE CuMP cAILURE 09/29/82 6:10 46:35 REPLACED FAILED FLEX GASKETS IN MPSI MDR #2 FLOW ELEMENT TO RCP LOOP 1 HOT LEG.

PUMP P017 COMP FAILURE 11/28/82 5:45 210 DISASSEMBLED PUMP AND REPLACED DEGRADED BEARINGS.

PRESSURE TXMTR CORRECTIVE MNT 12/16/82 8:00 2:30 ADDED CONAX CONNECTOR, REWORKED CONDUIT AND RETERMINATED CABLES TO TRANSMITTER.

SONGS 2 ECCS OUTAGE DATA FOR LPSI SYSTEM

COMPONENT NAME OvTAGE TYPE START DATE START TIME DURATION COMMENTS - --- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- ---- -- - -- - -- ------- - ---- - -- - -- - -- - --

LOO0 1A CuRRECTIVE MNT 03/05/82 10:00 779 REPLACED SEAL RING IN S21204MU027.

LPSI P016 COMP FAILURE 03/14/82 5:25 7:20 DECLARED UNUSUAL EVENT DUE TO LOSS OF SHUT DOWN COOLING. TERMINATED 12:45.

LPSI P015 141 TESTING 03/31/82 12:26 0:14 SDC RETURNED TO SERVICE FOLLOWING COMPLE TION OF SOC AND SIT OUTLET TESTING.

MINI-FLO VALVE CQMP FAILURE 04/12/82 0:01 117 REPAIRED ACTUATING LINKAGE AND REPLACED DEFECTIVE LIMIT SWITCH ZL-9287-2

CHECK VALVES CORRECTIVE MNT 05/02/82 14:50 656 VALVE S21204MU18&MU027. DISASSEMBLED An O REPAIRED LEAKING CHECK VALVES.

MINI FLOW VALVES CURRECTIVE MNT 05/04/82 21:54 201 BLOCK POSITIONER RING OUT OF PLACE ON VA

LVE STEM. RESET AND REPOSITIONED RING. LPSI PRESS GAJGE CORRECTIVE MNT 05/23/82 21:15 51:25 PERFORMED MAINTENANCE TO RECALIBRATE GAU

GE 2PI-9435 FOLLOWING PEGGING INCIDENT. CHE:K VALVE CUMP FAILURE 05/29/82 9:30 30:30 PERFORMED MAINTENANCE To REPLACE FAILED

VALVE COVER GASKET IN S21204MU072. LOO1A C-ECK VLV CORRECTIVE MNT 06/20/82 3:00 681 INITIATED NCR P-426 TO REPAIR CHECK VLV

AND REPOSITION VALVE DISC. SPECTICLE BLIND CuMF AILURE 07/06/82 2:00 1579 PERFORMED MAINTENANCE TO REMOVE AND REPL

ACE FLEX GASKETS IN 2-SI-133-35. BLOCK VALVE COMP FAILURE 07/08/82 10:00 26:00 INSPECTED LEAKING VALVE AND REPLACED GAS

KETS. PERFORMED TESTS FOR LEAKS.

LPSI HDR SMfLPT CORRECTIVE MNT 08/03/82 11:00 11:45 PERFORMED INSPECTION TO DETERMINE CAUSE OF LEAK-BY AT MOR SAMPLE POINT AP9317.

PUMP P015 PiuFVENTATIVE MNT 09/13/82 10:00 20:00 PERFORMED MAINTENANCE TO LUBRICATE PUMP AND MOTOR. LCOAR ($NOT STATED).

PUMP P015 CORRECTIVE MNT 10/01/82 7:00 464 ADJUSTED LIMIT SWITCHES ON MINI FLOW VAL

VES. PUMP P016 CURRECTIVE MNT 10/01/82 7:00 464 CORRECTED IMPROPER GROUNDING FROM LIMIT

SWITCH4ES TO MINI FLOW VALVES. ISOLATION VLV SuRVEILLANCE TST 10/14/82 8:30 2:30 PERFORMED FUNCTIONAL TEST TO VERIFY VLV

POSITION WITH THAT OF POSITION INDICATO LPSI MDR VALVE COMP FAILURE 12/23/82 19:05 172 INABILITY TO OPEN CONTROL VLV FROM THE

CONTROL ROO DISPOSITION NOT STATED. MINI FLOW VALVES CORRECTIVE MNT 12/30/82 15:20 5:20 ALSO 2V-9347&O. PERFORMED MAINTENANCE

'ON'GS 2 ECCS OUTAGE DATA FOR LPSI SYSTEM OMPONENT NAME OUTAGE TYPE START DATE START TIME DURATION COMMENTS

TO REMOVE RAS SIGNAL FROM ALL VALVES.

SONGS 2 ECCS OUTAGE DATA FOR RWST SYSTEM

COMPONENT NAME OL.TAGE TYPE START DATE START TIME DURATION COMMENTS ---------- -------------------------------------------------------------------------------------------------------------------------

TANKS T005&T006 CORRECTIVE MNT RESTORED TANKS TO OPERABLE STATUS WITH BORON CONC = 1750PPM. CLOSED LCOAR.

OUTLET VALVE COMP FAILURE 04/08/82 6:00 39:00 REPLACED DEFECTIVE VALVE MOTOR IN 2HV-93 00.

T005&006 LEV IND CORRECTIVE MNT 06/13/82 15:12 17:58 RECALIBRATION OF LEVEL INDICATORS POSTPO NED AWAITING REPLACEMENT PARTS.

SONSS 2 ECCS OUTAGE DATA FOR SDC SYSTEM

COMPONENT NAVE O4jTAGE TYPE START DATE START TIME DURATION COMMENTS

RWT/SDC VALVES CQRRECTIVE MNT 04/04/82 7:00 10:20 NCR P-135 CORRECTED IMPROPER WIRING FROM 2ZL-9296997999 TO EFSAS PANEL 2CR-57.

WARMUP DRN VLVE CQMP FAILURE 05/10/82 12:30 64:15 DISASSEMBLED AND INSPECTED LEAKING DRAIN VALVE AND REPLACED GASKETS.

WRMUP BY-ASS VLV CURRECTIVE MNT 06/03/82 5:00 120 ADJUSTED LIMIT SWITCHES TO PERMIT VALVE TO FULLY OPEN AND CLOSE&

DRAIN VALVE CORRECTIVE MNT 06/21/82 23:45 16:15 TIGHTENED PACKING ADJUSTMENT NUTS DOWN T O PREVENT INTERFERENCE WITH HANDWHEEL.

DRAIN VALVE CURRECTIVE MNT 06/26/82 4:00 96:00 PERFORMED MAINTENANCE TO INSTALL CAP ON DRAIN LINE TO CORRECT VALVE LEAKAGE.

LOOPa2 SUTION CURRECTIVE MNT 07/08/82 3:00 60:40 REPACKED VALVE AND INSTALLED MISSING ZIN C RINGS. NCR (#NOT STATED) INITIATED.

WRMUP BYDASS VLV CURRECTIVE MNT 08/19/82 7:30 1:55 ADJUSTED PACKING GLAND NUTS ON SHUT OWN

COOLING BYPASS WARM UP VLV TO STOP LEAK ISOLATION VALVE CORRECTIVE MNT 08/20/82 8:00 104 PERFORMED MAINTENANCE TO ADJUST PACKING

AND RETORGUE BONNET OF LEAKING 2HV-9337 MoV'S CORRECTIVE MNT 09/25/82 10:35 2249 ADJUSTED TIME RELAYS 62-1 AND 62-2 TO 10

SECONDS.

VITL SUCTN MOVIS CORRECTIVE MNT 09/26/82 17:45 24:15 REVISED INTERNAL INVERTER WIRING TO PROV IDE CORRECT POWER AVAILABLE INDICATION.

BYPASS VALVE CORRECTIVE MNT 10/02/82 0:00 171 DETERRINATED ALL CABLES AND LABELED ABA

NOONEDO PER DCP-55N REV 0. tX ISOLATION VLV CORRECTIVE MNT 10/13/82 0:00 440 VERIFIED TRANSITTER/INOICATOR WIRES TO

BE LIFTED AND TAPED PER NCR S02-P-505ISOLATIOV VALVE CORRECTIVE NT 12/15/82 16:00 300 ADJUSTED VALVE AND PERFORMED OPERATIONAL

LEAK TESTS O CORRECT VALVE LEAKAGE. PRESSURE TXMTR. CoRRECTIVE MNT 12116/82 0:0D0 35:05 PERFORMED MAINTENACE TO ADD CONAX CONNEC

TOR PO PRESSURE TRANSMITTER 2PT-E10-2.

SONGS 2 ECCS OUTAGE DATA FOR SIS SYSTEM

COMPONENT NAME OuTAGE TYPE START DATE START TIME DURATION COMMENTS

CHECK VLV LOD2 CURRECTIVE MNT 04/06/82 0:00 10:30 REMOVED VALVE S21204MU033 FOR DISASSEMBL Y AND INSPECTION.

SIS CHECK VALVE C6RRECTIVE MNT 05/11/82 7:00 8:58 REPAIRED LEAKING VALVE BY TIGHTENING THE PACKING. PERFORMED FULL STROKE TEST.

CIRCUIT BDEAKERS CORRECTIVE MNT 09/29/82 16:30 227 REMOVED AND REPLACED CIRCUIT BREAKERS WI

TH LARGER UNITS PER DCP 222J/0.

SONGS 2 ECCS OUTAGE DATA FOR SIT SYSTEM

COMDONENT NAME OUTAGE TYPE START DATE START TIME DURATION COMMENTS ------------------------------------------------------------------------------------------------------------------------------------------------

#77 N2 SUPPLY SURVEILLANCE TST 04/06/82 10:00 7:25 TESTING AND VALVE VERIFICATION

TO1 FILL VALVE CRRE:TIVE MNT 05/07/82 5:58 2:47 VALVE LEAKS AT PRESSURE. TIGHTENED VALVE PACKING AND VERIFIED VALVE OPERATIONAL

N2 SUPPLY VALVES COMP CAILURE 05/29/82 10:00 47:00 521204MU195,l96,1979198. DISASSEMBLED A ND REPAIRED LEAKING CHECK VALVES.

T008 VENT VALVE CUMP FAILURE 05/29/82 23:30 64:50 INITIATED NCR P-407 AND PERFORMED MAINTE NANCE TO REPLACE FAILED VALVE.

PRESSURE INDICAT CORRECTIVE MNT 06/04/82 8:00 854 ALSO 2PI-D322&23. RECALIBRATED NARROW RANGE PRESS INDICATORS FOR SIT-D07/008.

T008 OUTLET VLV CURRECTIVE MNT 06/10/82 8:00 258 ADJUSTED VALVE PACKING AND PERFORMED FUL L STROKE TEST TO CORRECT BONNET LEAK.

T008 SOLENOID VV PKEVENTATIVE MNT 06/10/82 20:30 904 PERFORMED PREVENTATIVE MAINTENANCE ON SOLENOID VALVE.

TO0 DRAIN VLV CURRECTIVE MNT 06/20/82 3 00 681 PERFORMED MAINTENANCE TO ADJUST 2HV-9432 VALVE PACKING TO STOP LEAK.

TOOR VENT VALVE IDI TESTING 06/26/82 21:05 180 REWORKED N2 VENT VALVE AND PERFORMED ISI LEAK INSPECTION.

DRAIN TO RWST CwRREzTIVE MNT 06/26/82 8:00 199 PERFORMED MAINTENANCE TO ADJUST VALVE POSITION INDICATOR IN THE CONTROL ROOM.

ISOLATION VLVS COMP FAILURE 08/13/82 8:30 182 DETERMINATED CABLES FROM LIMIT SWITCHES AND ADDED/REMOVED JUMPERS PER DCP-272-J

TO1 RELEI: VLVE CUMP -AILURE 09/30/82 0:01 741 VALVE 2PSV-9376 CAUSED DEPRESSURIZATION OF T0O. PERFORMED MAINTENANCE ON VALVE

TOO DRAIN VLV CuRRECTIVE MNT 12/17/82 8:00 163 PERFORMED MAINTENANCE TO STOP VALVE OIL LEAK. ADJUSTED PACKING AND LEAK TESTED.

MOV'S CwRRECTIVE MNT 12/18/82 15:30 264 HV-9340,9350,936099370. DELETED N27" RE LAY PER DCP 305J.

*A EN4D TSU 2623 E L.ABLE 0001 0001 REMOTE10 ROOM 12.00.14 PM 18 MAR 83 R'10PR D *A END TSU 2623 ELABL? 0001 0001 REMOTE10 ROOM 12.00.14 PM 18 MAR 83 R10.PR1 SYS 0081 END As *A END TSU 2623 ELA9LE 0001 0001 REMOTE10 ROOM 12.00.14 PM 18 MAR 83 R1o.R1 SYS 0081 END A* *A END TSU 2623 ELABLE 0001 0001 REMOTE10 ROOM 12.00.14 PM 18 MAR 83 RID.PR1 SYS 0081 END A. A END TSU 2623 ELABLE 0001 0001 REMOTE1. ROOM 12.00.14 PM 18 MAR 83 R10.PR1 SYS 0081 END A. "A END TSU 2623 ECABLE 0001 0001 REMOTE10 ROOM 12.00.14 PM 18 MAR 83 R10.PR1 SYS 0081 END A*