ML20072S719
| ML20072S719 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 04/08/1991 |
| From: | Beck G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-2.K.3.17, TASK-TM NUDOCS 9104170005 | |
| Download: ML20072S719 (11) | |
Text
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i NUREG-0737, Item II.K.3.17 PHILADELPHIA ELECTRIC COMPANY NUCLEAR GROUP HEADQUARTERS 955 65 CHESTERBROOK BLVD.
WAYNE, PA 19087 5691 (us) e40 sooo April 8,
1991 Docket No. 50-352 Lico"se No. NPF-39 U.S.
Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
Subject:
Limerick Generating Station, Unit 1 Five Year Report of Emergency Core Cooling Systems Outages Gentlemen:
This letter is being submitted in response to the requested action specified in NUREG-0737, " Clarification of TMI Action Plan Requirements," Action Item II.K.3.17, " Report on Outages of Emergency Core-Cooling Systems Licensee Report and Proposed Technical Specification Changes."
By letter dated October 31, 1980, the NRC issued NUREG-0737 to licensees of operating power reactors and applicants for operating licenses providing specific Three Mile Island (TMI) related action item issues which the NRC recommended for implementation.
Specifically, TMI Action Item II.K.3.17 requested that licensees submit a report detailing outage dates and length of outages for all of the Emergency Core Cooling Systems (ECCSs) for the last five (5) years of operation.
However, since Limerick Generating Station (LGS) Unit 1 was not licensed and was under construction at the time the NRC issued NUREG-0737, Philadelphia Electric Company committed to reporting this ECCS outage data for-the first five (5) year period beginning with the date of Unit 1 commercial operation.
The NRC accepted our schedule for providing this information as documented in the LGS Safety Evaluation Report (SER) NUREG-0991 dated August 1983, Section 15.9, "TMI Action Plan Requirements."
The five (5) year period began on February 1, 1986, when LGS Unit j[
1 was declared in commercial operation and ended on February 1, 1991.
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U.S. Nuclear Regulatory' Commission April 8, 1991 Dochment Control Desk Pace 2 The attached ECCS outage data for the period February 1, 1986 through February 1, 1991, is provided in tabular form and provides the following information as requested in NUREG-0737,
- 1) The ECCS outage dates and durations.
- 2) The cause of outage.
- 3) The specific ECCS involved in the outage, l
- 4) Any corrective action taken.
During the five (5) year reporting period, plant Administrative Guidelines (AGs) concerning ECCS outages were developed and ir.plemented based on applications of the LGS Probabilistic Risk Assessment (pRA) to plant maintenance.
These AGs provide 1) decision making and planning guidance for performing ECCS outages based on the LGS PRA and sound operating judgement;-2) guidance concerning the prioritization, planning, and scheduling of maintenance on ECCS and related equipment addressed in the LGS PRA; and 3) identification of plant systems / equipment considered to be important to safety on the basis of the LGS PRA.
As a result of implementation and application of these AGs, ECCS outages and durations are kept to a minimum, thereby, enhancing system reliability.
If you'have any questions, or require additional information, please do not hesitate to contact us.
Very truly yours, Ywf Y
G.
J.
Beck Manager Licensing Section Nuclear Engineering _and Services Attachment cc:
T. T. Martin, Administrator, USNRC, Region I T. J. Kenny,_USNRC Senior Resident Inspector, LGS i
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ATTACHMENT 4
ATTACHMENT UMERICK GENERATING STATION. UNIT 1 EMERGFSCY CORE COOLING SYSTEM UNAVAILABILITY
SUMMARY
Pag 01 SYSTEM INOP -
"DME OPERAlllt.rl "ITME FORCl#D/
CAUSE / CO\\tMENTS AITECT1!D DA111 DATE PLANNID l'
ADS 024 46 1000 02-0446 100 l'ORCED Sr.241415 l l' AILED 1A RilR 02 0546 1100 02-0746 2000 PLANNED MOD OR31 CAllLES FOR IIV.05111507A SWAPPED IIPCI 02 1186 0055 02 1446 N15 P1ANNED llPCI BAR COND,110AT REPAIRID ADS 02-2146 0900 02 2146 19M PLANNED
'll' INSTR. IliADER & llV 59151A IlLOCKED 1D LPCI-02 2146 1005 02-2146 1041 PLANNED PERFORMANCE OF Sr.2 0514211 1IPCI_
02 2646 1029 OL26-86 1149 PLANNED PERFOlutANCE OF ST 2 0554051
- 1A LPCI 024746 0105 02 2146 0155 PLANNED PERFORMANCE OF 57 2451420-1 1C LPCI 02 2746 0159 02 2746 0229 PLANNED PERfObtANCE OF Kr.2414251 11PCI 02 2746 0620 02 2746 0818 PLANNED ltliFOlutANCE OF ST 2 055404I RIIR 03-0546 0745 010646 2000 FORCED LIMir SWrrCil RECALIDRATION ON llV.51 124Il
- IIPCI 010946 0553 011246 16M PLANNED REPLACE LUDE OIL PUMP FILTERS 11PCI 011746 0530 03 1746 0630 PLANNED PERFODIANCE OF 5T 2 055-4121 IIPCI 03 1546 0200 03-18-86 G130 PLANNED PfiRFolulANCE OF ST 2 0554%1 ilPCI 011846 0430 03-1S4 6 0600 PIANNED PfiRFODIANCE OF Fr.2454011 tlPCI 012146 W10 012146 1445 PLANNED PERFORMANCE OF ET 2 6564441 11PCI 012146 220) 012246 0035 PLANNED PERFORMANCE OF ST 246-1051 flPCI 03 2246 0930 012246 1812 PLANNED,
PERFORMANCE OF Fr 246-1061 1IPC1 03 2946 1603 012946 1758 PLANNED PERFODIANCE OF ST 24534061
~
lu LPCI 48-0146 1300 014146 1809 PLANNED PERFOlutANCE OF Sr.le14021
- ID RilR al.0146 18 0 -
%0144 2157 PIANNED PERFORMANCE OF Sr.10514%1 1A LPCI St-0246 0915 01-0246 1935 PLANNED PERFOUtANCE OF Sr.1&l401 1 -
IC RllR -
000246 1%io 080246 2205 PLANNUD PERFODtANCE OF ST.1-0514011 (LPCI MODE)
- III LPCI
% 0186 0905
% 0186 OW6 PLANNED PERFODIANCE OF ST 24514211 1A CS 4:4 46 0250 Gb0186 1745 PLANNED CilANGE OIL IN 'A' CS PUMP / MRF No,8684n01 l-IIPCI 68-1246 0920 0L12 86
'1105 PIANNED PERFORMANCE OF Sr 24564%1
- 1A CS
% 14 86 0825 Gbl146 2215 PIANNED PERFOPJ, LANCE OF LLRTs 711 1,921 1,691 1 1D RilR
% 1186 OW)
Obl546 0630 PIANNED PERFORMANCE OF ST 2el4211 (LPCI MODE) l l
IC LPCI-
%1846 1401
%2846 1423 PLANNED PERFORMANCE Ol' 57 2.A%617A 1D LPCI 0b18 86 1440 04-18-86 1456 P!ANNED PERFODtANCE OF ST.2-A36-6181 I
%2bS6 1408 PLANNED
'C' RilR PUMP DLOCKED OLT FOR FF 11.LR4tl.1 ID LPCI
% 2346 1725 042M6 1810-PLANNED 50 2414211 (ECCS.RilR INJ VALVE DilT PRESS) 1A LPCI
% 23-86 18t5 Gb2186 1835 PLANNED YT 2451420-1 (ECCS-RilR INJ VALVE L)lFF PldSS) 1D RJIR GI-2746 180) 010186 0521 PLANNED PERFORMANCE OF Sr.l.1.LKr421 1 1A RilR
% 2946 1032 ab2946 1846 PIANNED PERFOlutANCE OF YT 2 A36-6091 1A&I3 C5
% 2946 D55
% 2946 1455 PLANNED PERFODIANCE OF ST 2.A%608-1 lA RIIR 010346 O!17 010M6 OM5 PIANNED Pl!RFORMANCE OF ST.1051 101 1
ATTACHMENT l
MMERICK GENERAI1NG STATION. UNIT 1 fMRGENCY CORE COOUNG SYSTEM _ UNAVAILABILITY
SUMMARY
Pago2 SYF11A1 INOP TIME OPERADILIIY 1BIE FORCED /
CAUSE / COhlMINI$
AITECIID DATE DATE PLANNED 1D RilR 054L86 0350 05-0186 0500 PLANNED PERFORA1ANCE OF ET 10511021 1A RI1R
% 1546 0600 OG18 86 0615 PLANNED PERFORA1ANCE OF ST 2 0514201 ID RilR
% 2186 1715 06-2346 1820 PLANNED pef 70lulANCE OF SF 2-051423-1 (LPCI hlODE)
!!1 RIIR
% 23 86 2102
% 2346 2215 PLANNED PERIORhlANCE OF FT 24514211 (LPCI hlODE) a IA LPCI 06-2646 OM 062646 2003 PLANNED hlRf3 B60170RGl%8603599 & fv41355 til CS 070186 0530 070346 1$10 PLANNED DLOCKED TO MEGGER hlOTOR ID CS 074186 0530 070346 l'LIO PLANNED Dl.OCKED TO hlEGGER hlOTOR RilR 070746 0337 07-0746 1 486 PLANNED DLOCKED TO hlEGOER hlOTOR 1A LPCI 07 0746 OM5 070946 1418 PLANNED REPACK OF SI 1RrJA 1D LPCI 070846 1350 07-0946 1413 PLANNED PIPACK OF $1 1I(4511 1 CAD LPCI 07 M 86 1423 07 1046 2200 PIANNED REPACK OF litWC & ilMSD llPCI 084946 1400 08-1246 2030 FORCED DAD PRESSURE TRANSMrITER $5 IN050 IC CS 08-1346 0530 08 13-86 1748 PLANNED PMO ON 'c PUAtP llPCI 08-25-86 N30 082746 0200 PLANNED VAINE PACKING WORK, Pat ON ROOM COOLERS 1A RilR 08-2846 0550 08 2846 2N5 PLANNED OIL COOLER AND SEAL COOLER CLEANED 1D CS OW6 2M2 09-0746 0350 PLANNED VIDRATION PRODE OVF COMPLITED 1A CS 09-1746 N32 09 1746 2200 PLANNED.
PNIO OLTIBOARD INI[iCDON VALVE. OVF CONIPLLTED ID LPCI 09-27-56 1407 09-2746 1447 PLANNED PERFORNIANCE OF ST 2 0514211 ADS 093046 1540 10 0146 1530 FORCED PROBLEM %Tril MODUL E RESET / RECOUNT CIRCUll
!!! Ri!R 10 02-86 0500 100186 0010 PLANNLD PN1 TO CilANGE OII.
IC RilR 10 0246 OM5 10-0246 1530 FORCED hlAINTENANCE DRAINED OIL FROM WRONO PUMP ID RilR 10-0646 C600 10-0646 2015 PLANNED PM TO CllANOE Olt llPCI 10-1646 1359 10-1646 1436 PLANNED PERFOlutANCE OF ST 24534C61 itPCI 10-1746 1156 10-2346 2100 FORCED DROKEN PACKING GLAND FOLLOWER ON llV 551F%3 ilPCI 103046 1336 10-3046 1426 FORCED TROU11LESilOOTING TE-55-INO28D & TE 55-lN029D llPCI 11-0946 0235 114946 05 30 PIANNED MAN.150. OF llV 551F003 TO COMPLY W/ TS 33 2 IA LPCI 11 1046 OM7 11 1046 0926 PLANNED PERFORNIANCE OF YT 2-0514201 llPCI 11 1146 1110 111146 1405 PIANNED REPLACriD DIV 4 LEAK DLT. TI'MP. IND. TI 015-Is8 1A CS 112046 0920 11 20-86 0956 PLANNED PERFORalANCE OF ET 2 52mi 1 1A CS 11 2546 0155 11 2546 1f#15 PLANNED C11ANOE OIL ON PUNIP MGIOR - MRF B685110 1A LPCI 121046 1243 1210M 1318 PLANNED PERFORMANCE OF VF 2 051420-1 IC LPCI 12-10-86 1403 12 1046 1457 PLANNED PERFORMANCE OF 5T 24514221 11PCI 12-1146 1611 12-1146 1731 PLANNED PERFORMANCE OF ST-2 0%fm1 IA CS 12 15 86 4 15 12153 1&lo PLANNED PM ON IC CS PUMP ROOM COOLER IOV211 IIPCI 12 1946 1014 12 1946 1115 PLANNED PERFORMANCE OF TT 24554%1 IIPCI 12 22-86 gral5 12 2246 1405 PLANNED ADD Olt TO INDRD & OLTilRD PUMP IIRNOS, PMO456030
ATTACHMENT 11MERICK GENERATING STATION. UNIT 1 EMERGENCY CORE COOUNG SY$JEM UNAVAILASlUTY SUMMARJ Page3 SYSTEM INOP TIME OPERADILrrY VME FORCED /
CAUSE / COMMENTS ATFECTED DATE DATE PLANNED 1D RJ1R 124446 0852 12-2446 0907 PLANNED PERFOll\\ LANCE OF ST 2@l4211 1A RilR 12-2446 0725 12-2446 (N31 PLANNED PERFolt\\ LANCE OF Sr.2451410-1 IIPCl 1240-86 0909 124046 1307 PLANNED
'ITST Frht LINE DRAIN POT LYL SWICil LSll4511N014 IIPCI 014247 1007 010247 1031 PLANNED 49X RELAY REPLACEMENr; MRF 870010 11PCI 01 1647 1408 01 16-87 1445 PLANNED PERFOlt\\ LANCE OF ST-2-0554%)
itPCI 012147 0825 01 2147 0830 FORCFD INADVERTENT ISOLATION DUE TO TESTINO ERROR 1A RllR 01 21-87 0605 012147 2150 PLANNED MRF 8687711DRI AKER CAllit: MRF BXO255-Olt CllNO 1 AAC CS 012747 ITU 012747 2135 PLANNED RELAY CilANOEOUT; MRl3 6700195 & 8700mo IA N 01 2S-87 0743 012847 1906 PLANNED PM Olt CllANOE ; MRF 86S5D1 1C RilR 020187 0600 02-0647 1910 PIANNED CilANOE 0114 INSTALL OIL OIISERVATION COVER 11PCI 02 11-87 1250 02 14 67 1100 PLANNED LOWER OIL Al'IER liloll LEVEL ALARM, MRF $700359 1C LPCI 022147 1D8 02-2147 1410 PLANNED PERFORMANCE OF Fr.24514211 LA LPCI 02 2347 1720 02-2347 1287 PLANNED PERFORNIANCE OF Fr.2-0514St 1 IC LPCI 02 23-87 1751 02-23-87 1806 PLANNED PERFORA1ANCE OF ST 2414%1 ID LPCI 02 2187 IS22 02-23-87 1900 PLANNED PERFORMANCE OF ST 2dl 1051 ID LPCI 02 2137 1905 02 2187 1925 PLANNED PERI ORMANCE OF ST.2-051-8011
-IIILPCI 02 2187 2480 02 2187 2125 PLANNLD -
PERFOlt\\ LANCE OF KT 24514091 1A LPCI 02 2187 2130 02-2347 2145 PLANNED PERFOll\\ LANCE OF ST 2 0514cs-1 ID RilR CM247 0435 010287 1805 PLANNED TRIP TEST AND MDCP47 11PCI O W 87 1720 016487 1824 PLANNED PERFOlt\\ LANCE OF KT 2 056-105 AND Sr.2456408 1A RllR 010G87 1630 010647-1730 PLANNED PERFORMANCE OF Sr.2 05-l20 IC Ri!R OM6-87 1735 0106-87 1830 PIANNED PERFOILNLANCE OF FT-341422 11PCI 010547 1715 OM647 0500 P!ANNED PERFOIL\\ LANCE OF FT 2 05640G1 liPCI 03-1947 1 482 03-1947 1105 PLANNED PERFORMANCE OF ST 245540e t r
itPCI 012487 0100 G2047 0500 PLANNED PM ON Fl.OW TRANSMilTER 55.IN0G CS 012187 1319 012187 1324 PLANNED PERFORMANCE OF Sr.242MG1 ID LPCI 48 01 87 G121 08 02-87 2245 PLANNED PREVENTIVE MAINIENANCE IC LPCI GL-0187 bil2 Gl.15 87 0515 PLANNED PREVENFIVE hlAINTENANCE/ESW MODiflCAT10N ID RilR 01-0647 0500 St0G87 2120 PLANNED MEOOAR MOTOR /EO/MRFs 10 RilR 04 09 87 Dl45 44-0947 2100 PIANNED EO INSPECIlON 1A CS 64-1187 0330 68-15-87 0133 PLANNiiD M RFs IA LPCI 481187 1200 Gl.14-87 0035 FORCED UNIr COOLER Fall URE DURINO ST4411231-0 IC Rl!R 08 15-87 luh 08 15-37 2035 PLANNED ESW MODil'ICK!10N ON Oil AND SEAL COOLERS IIPCI 01 1187 0520 08 17 87 2135 PIANNED PREVENilVE MAINTENANCE IC CS GI-2047 1015 052247 4420 PIANNED LLRT ON llV 52.llD31A 1A LPCI 04-20 87 1035 48 22-87 4820 PLANNED Fr.1-051801 1
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ATTACHMENT LIMERICK GENERATING STATION. UNIT 1 EMERGENCY COPE COOUNG SYSTEM UNAVAILA91UTY
SUMMARY
Page 4 SYFE M AITECTED.
INOP
'llME OPERAltiLTIT TIME FORCED /
CAUSE / COMhlENIS DATE DATE PLANNED IC !?CI 04387 1140
% 2247 4420 PLANNED MODillCATION $135 ON 'A' E3W LOOP 1A CS 04-20 87 1140 D4-22 87 0120 PIANNED MODIFICAT'ON 5135 ON 'A' FSW LOOP 1A LPCI 64-2047 1140
% 2247 0120 PIANNED MODiflCATION 5135 ON 'A' 13W l.OOP 1A CS St-2187 1014
% 23-87 1149 PIANNED ST t 0524011 ID LPCI 04 24-87 1042
% 2447 1330 PLANNED 501 051402 1 1C RI1R 05-0547 1728 050547 1800 PLANNED PERFORMANCE OF ST 2-0514221 IIPCI 05- % 87 0117 05 09 87 IM5 PLANNED Pl!RFORMANCES OF LLRTs AND EQ MRIN IDAD LPCI 05-1247 0600 05-13-87 0006 PLANNED PERFORMANCE OF Li RT ON llV 31125tl llPCI 05-1447 2210 05-15-87 mo PLANNED llPCI STOP VALVE FAILURE DURING Sr4 053 2301 1A CS 09-1447 0513 09-1447 1990 PLANNED O!L SAMPLING llPCI 09-1547 G103 09 17 87 0155 PLANNED PERFORMANCE OF MRFs FOR Rhr nCKING VAL \\TS 1D CS 09-21 87 0800 092147 2055 PLANNED Oil SAMPLING IC R11R 09-2647 1305 09 29-87 0519 FORCED MIN FLOW VLV Fall.ED TO OPEN DURING ST4 0512311 1A R1iR 10 % 87 0100 10-1047 m35 PLANNED PM MRFS 8781797 AND 8732410 IC LPCI 10-2947 2027 10-29-87 2l04 PLANNED PERFORMANCE OF ST 2 0516221 ID CS 110647 0915 110647 1800 PLANNED REPLACE TRIP UNIT PIS-I2-IN690K ID RilR 11 18-87 6 20 11 1847 1750 PIANNED '
CllANGE MOTOR llEARING OIL MRF #8782448 1A RilR -
08-0647 2250 08 0747 0030 PLANNED PERFOR.\\ LANCE OF 50,2436-4241 IIPCI
% 2947 0001 08-31-87 0210 IORCED llPCI TURil!NE STOP VALVE MLANCE CllAMDER PRODLEMS 1A CS 124247 0500 12-0247 1900 PLANNED PM WORK MRF8782442.8782411 1D C5 120187 Gkl3 12-0347 1650 PLANNED PM WORK: MRF 8782429.8782449 IIPCI 12-07 87 400 lb0947 1830 PLANNED PM WORK; DOOSTER PUMP O!L CilANGE IIPCI 12 1187 0322 12 13-87 1730 FORCED llPCI TURil DLOCKED DUE TO LFAK IN STEAM SUPPLY DRAIN llPCI 1215-87 0005 12 lfr87 0220 FORCED MAINTENANCE INSPECHON OF STEAM LFAK llPCI 12 18-87 0500 12 15-87
-2130 FORCED llPCI DRAIN POT DRAIN LINE LFAK ID RilR
.01 1648 1818 01 1(-88 1921 PLANNED DIV. 4 STATUS LIOf fr$ DEENERGIZED FOR LIGirr SOCKLT 1A LPCI 01 22 88 1700 01 2248 1707 PLANNEO ST 24514201 IB LPCI 01 2248 17M 01 22 88 1917 PLANNED fr 2.QS1421 1 IC LPCI 01 2188 1738 012188 1747 PIANNED ST 2 514221 ID CS 02 11-88 005 02-1188 2123 PLANNED PM ON DREAVJiR & INLiff REllEF val VE PSV-052.lfU32D l
1A RJIR 02 1548 0500 021548 2fx4 PLANNED CIIANGE MOTOR DEARING O!L llPCI 02 16 88 0215 02 1948 4KO FORCED IIV 55-tr054. WORK ON DRAIN POT DRAIN TRAP DYPAM VALVE I
ffPCI 02 22-88 1010 02-2248 1230 PLANNED OD STM SUPP! Y VLV CLOSED TO ADIUST LIMirS ON llV 55 1T M I
(
IC RllR 02 2548 0116 02 25-88 2030 PIANNED llV 51 105A & ilV 51 lHM7C DREAKER PMS
A1TACHMENT LIMERICK GENERATING STATIOfLUNIT 1 EMERGENCY CORE COOLING SYSTEM UNAVAILABILITY
SUMMARY
Page5
.w
. SYSTEM INOP TIME OPERADILT!Y TIME I ORCED/
CAUSE / COMMliNTS AITECIED DATE DATE PLANNED IC LPCI 03-22 88 1440 012248 1453 iORCED INJECrlON D!lT. PRESSURE TRIP UNrr TEMP PRODL f31 IIPCI 013048 1100 013043 1143 PLANNED NSSSS IIPCI Fl%1 LINE DP 111 i 1D RilR OM148 0115 03014S 2116 PLANNED PRININnVE MAINIT. NANCE IIPCI 03-0948 2250 011148 0611 FORCED IT 5LIN050 IIPCI DISCllAROU PRl3S. TRANS. INOP.
-ID RilR OMS-88 N30 03-0948 0020 PLANNED PREVENnVE MAIN!ENANCE ID CS 011548 0120 011548 2215 PLANNED PREVENilVE MAINIT. NANCE ID RilR' 010188 N00 01034S 2240 P! ANNI:D PREVENrlVE MAINTENANCl!
1A LPCI 03 22-SS 0830 012243 1012 PLANNiiD ST 2 0514201 'A' INJECDON VALVE DP PEIL\\llSSIVE IC LPCI 03 2248 1015 012283
!!01 PLANNED Fr.2414221 LPCI'C'INJECrlON VALVE DP IUNCrlONAL ID LPCI 012248 1407 012248 1428 PLANNED TO PERFORM FT 2-0514211
' IC LPCI 05-0243 1055-05 0248 -
1235 PLANNED APPLIED TCA #1356 TO MONTTOR TRIP UNTT INPLTS IIPCI 052648 1618 052688 1620 PLANNED TO PERFORM ST4 55-2001. CLOSED llV 55-IF005 VALVE
06 1548 N05
% 25 88 1955 PLANNED MRF 6803806 D1%R 11 ()II) OUTAOli ID
% 15-88 0410 06 1548 2240 PLANNED MRF 8803565 D144 R il AND 0 OUTAGE RilR/CS
!!PCI (Y-2748 1430
% 2748 1523 PLANNED RT l&5 2%1 ifPCI OGol48 1107 06 % 88 1450 PIANNTD ST-2564%1. ST-2 05540G L ST-2 055605-1 1A RilR OG2448 0820 042448 0834 PLANNED ST 2el 6201 ECCS-RilR 1A LPCI-086848 OM5 08-0448 1445 FORCED FLOW TRANS. OUT OF CAL. RECAllilRATED AND EO A CS 090G88 0430 OA0748 2240 PLANNED PREVINIIVE MAINn! NANCE ID CS 09-1248
- 0315 09-1348 2111 PLANNED PREVENTIVE MAINTENANCE ilPCI 09 18-88 1905 09-2243
' 0525 PLANNED PREVINrlVE MAINTENANCE ADS 09 2348 1530 09234s 205' FORCED REPAIR PROBL1315 iOUND DURING ST.2-0524071 IC LPCI -
092G88 0505.
09-27-88 1431 PLANNED PREVINTIVE MAINrt! NANCE IIPCI 10 1588 0230 10-1343 2000 FORCED FIEAM LEAK AT551F036. REPLACED VALVE tB LPCI 10-!G88 2100 10 1948 0900 PIANNED PIANNED PM OUTAGE 1A LPCI -
10 3048 IS&4 114148 0045 PIANNED PLANNED PM OtJTAGE llPCl 10-01-88 0945 10 0148 2330 FORCED PACKING LEAK ON $51F036. REP!ACliD VALVE
('
ID RllR 10 G448 2245 PIANNED PIANNED PM WORK RilR'fr-11 14 88 0300 11 1448 2245 PLANNED PM AND C1.FANING OF SERVICE WATER SIDE OF PUMP UNIT COOLER 1A RiiR 10 3488 1945 11 02 88 0125 PLANNED PM AND CORR MAINT. FOR flAD LIM S%TCil ASST -
j IIV-51 Il014A 1D CS 124743 0400 124848 1800 PLANNED CLFANING OF UNrr COOLER 1A LPCI 124548 4 07 12 % 88 G400 P!ANNED PREVENflVE MAINIl', NANCE
- IA LPCI 12 2748 0830 12 27 88 1120 FORCED SYYlEM DLOCKI!D TO REPAIR MIN TLOW TRANSMrl'HIR IfPCI 1L2748 1335 12 27 88 15 25 PLANNED TO Pl!RFORM ROLIMNETEST(RT.I.055 20r l) e
ATTACHMENT UMERICK GEt{ERATING STATION. UNIT 1 EMERGENCY CORE COOUNG SYSTEM UNAVAILABluTY
SUMMARY
Page6 SYSTEN INOP TIME OPERAll!LTIY TIME IORCED/
CAUSE / COMMEN13 AITECIED DATE DATE PLANNTD 1A C5 010549 N30 01 0549 1930
. P! ANNT.D RolfilNE ELECFRICAL T15MNO 111 CE 010G89 ~
4415 010649 2130 PIANNED ROLfflNE ELECTRICAL'IEstlNO IIPCI 01 0749.
0150 01-07-89 1625 PLANNED L OCAL LEAK RATE TIERNO 1A CS 01 4 89 ONO 01 0949 2030 PLANNED LOCAL LFAK RAlt TErrlNO 1D CS 01 1489 0355 01 1049 2000 PLANNED LOCAL LEAK RATE T15MNO LA CS 01 1749 14a5 01 1749 192'O
' FORCED LOW INFTRUMENT REFER!'NCE LEO IC CS 01 1749 1405 01 17-89 2046 I ORCED LOW INSIRUMENT REIERENCE LEO 1D LPCI OG2749 0935 042S40 0427 PLANNED DOTil UNTF COOLERS INOPEM11LE FOR PM m
1A LPCI -
OG2249 0544 06-2249 (M20 FORCED DOTil UNTT COOLERS INOPERAllLE ID RllR 062G89 0410 OG2849 0530 PLANNED 110Til UNrr COOLERS INOPERAllLE FOR PM ID CS 01 30 90 1011 0130M 1024 PIANNED MINIMUM !1.OW VERIFICATION TESTING llPCI 01 04-90 1800 Ol N-9/
!&47 PLANNED PERFOIOl llA1ANCE CilAMilER RT llPCI 02-08-90 1800 02-08 10 uS7 FORCED INADVERTANT ISOLATION DURING PERFORMANCE OF ST 1A RilR 02 28-90 0805 02-2S-90 1237 FORCED REPLACEMENT OF VIDRATION PRODE ID RilR 03-13 90 0200 0514-90 OMO PLANNED SCilEDULED OLITAGE TO PERFORM MAINTENANCE.
IC LPCI 050590 0320 03-0G90 0525 PLANNED PREVEN 71VE MAINTENANCE 10 CS 03-19 90
- 0500 03-20-90 2245
. FORCED -
LOW DEARING OIL 1.EVEL
+
ID CS.
n2190 -
1115-03-21 90 1155 FORCED PRODLEMS ASSOCIATED WITil'IT50 RETURN VALVE IIPCI 04490-2016 N %90 -
2106 PLANNED 57 2 055 605 1 1A RilR -
04 10 90 2330 04-12-90 0550 PLANNED PERFORM MAINTENANCE ON VARIOUS VALVES 1D R}iR N-23-90 0005 G412-90 2020 PLANNID O!L CilANGE/MEGOAR/ TRIP TISDNO -
i.
1D Rl!R 04-27-90 1720 04 27 90 2235 PLANNED PERFORM MAINlENANCE 1A RilR M 2G90 1621 48-26 90 2238 PLANNED PERFORM MAINTENANCE IIPCI 05 23 90 0855 05 21-90 1%5 P!ANNED WORK ON PRESSURE AND FLOW TRANSMTITERS l
l IIPCI 041190 1MO 06-!!90 2140 PLANNED DIVISION 2 DC INOP DUE TO SEPARATION CONCEILN IC R11R 06-0490 2117 0409. NIO PLANNED DLOCKED 'IO SUPPORT VALVE REP!ACEMENT
.lD RilR -
OG14 0451 06-14 90 1257 PLANNED PREVENTIVE MAINTENANCE 1A&D CS 06 4 90 2117 0G09-90 0410 PLANNED DI OCKED TO SUPPORT VALVE REPLACEMiiNT 1A CS 0G12 90 0010 OG14-90 0530 PLANNED D1 OCKED TO SUPPORT PUMP MAINTENANCE IIPCI 07 11 90 0300
% 14 90 1215 PIANNED PLANNED MINI OLTAGE IIPCI 08 18-90 1515 08-18-90 1730 PLANNED RT t 55-20G1 1C LPCI 040400 0130 08-0G90 2216 PLANNED PREVENTIVE MAINTENANCE PUMP Oil CilANGE-
- IC LPCI 08-20-90 1855 08-20-90 2000 PLANNED E0151803-1 1A RilR -
OS23-90 0115 08-25 90 0300 PLANNED PREVENRVE MAINHINANC1!
1A CS 08-27 90 6130 08-27 90 1758 PLANNED PREVENMVE MAINTENANCE ID LPCI 08-28-90 2100 08-29-90 0440 PLANNED ST 2-A3G618-1 FOR llV 51.Ilol7D.
ATTACHMENT e
11MERICK GENERATING STATION. UNIU EMERGENCY CORE COOUNG SYSTEM UNAVAILABILITY
SUMMARY
Page 7 m.
SYSTEht INOP TIN!E
~ OPERAllit.TlY TlhtB FORCED /
CAUSE / CONINtEVIS ArlTCTED DATE DATE PLANNTD llPCI 08-29 90 2128 06-29.90 2222 PLANNTD ET 24534051 IIPCI 08 31-90 1400 040190 1128 PLANNED LOCAllEAK RATE 1TS11NG ID CS 08-16 90 0430 08 17 90 1036 PLANNID PREVEN 11VE hlAlVflWANCE ID CS 094190 llM 0 % 2 90 1643 PLANNED L OCAL LIAK RAll? USTING LA CS 09 4 90 1115 09 4 90 1202 PLANNED itRTORh! SURtT.lLIANCE TEXT 1A CS 09490 0500 0407 90 1630 PLANNED LOCAL LFAK RATE T1511NG LA CS 09 08-90 0530 0408-90 1301 PLANST.D LOCAL 1.EAK RATE TL5 TING 1A CS 0409 90 1940 09 0490 2012 PLANNED WORK ON DREAKERS ID CS 0409-90 2100 09 09-90 2215 PLANNED WORK ON DRIAKERS ID CS 041k90 0630 09'15-90 1601 PLANNED SNUDDER RENIOVAL LA RilR 09-25-90 44G4 09 30 90 2400 PLANNED l.OCAL LEAK RATE TI5flNO IC RilR 09-2590 G404 04.iO-90 2400 PLANNED LOCAL 1.EAK RATE'ITSilNG IC RilR 10-1190 1635 10 14 90 1421 PLANNED LOGIC SYSTEh! I'UNCrlONAL TFSTING ID RllR 10-17-90 1350 10-31 90 2400 PLANNED Dl.OCKED FOR hlAINTENANCE LA CS 10 20 90 2220 10-22 90 1950 PLANNED PLANNED SYSTrht OLTAGE ID RilR 114190 0000 11 07 90 2135 PLANNED Sr.6-0512%) AND PREVENTIVE hlAINTENANCE ID CS 11 05-90 1210 11 4 90 0213 PLANNED '
RESPONSE TIN!E TESTING 1A CS 11 12 90 0300 11 15 90 1440 PLANNED IN' TALL J125tPER 111CS 11 12 90 0300 11 15-90 1440 PLANNED INSTALL JUhtPER IC CS 12 16-90 1100 12 16 90 14M FORCED PUNIP ROON! FLOODED DUE TO DRAIN DLOCKAGE 1A CS 12 20 90 1330 12 20-90 1650 PLANNED DOORS PROPPED OPEN TO SUPPORT PAINflNG ID RilR 12-26-90 Q510 12-26-90 1900 PLANNED WORK ON PUhlP hlOTOR ANT) Oll CllANGE ID CS 12-27 00 0730 12 27 90 1900 PLANNED DOORS PROPPED OPEN TO SUPPORT PAINTING IC CS 12-2 & 90 0855 12 2S 90 1705 PLANNED DOORS PROPTED OPEN TO SUPPORT PAINTING ID CS 01 01 91 0805 01 01 91 1830 PLANNED DOORS PROPPTD OPEN TO SUPPORT PAINrtNG -
ID CS 01 14 91 0730 01 14 91 1712 PLANNED DOORS PROPPED OPEN TO SUPPORT PA!N11NG 1A CS 01 17 91 1510 01 18 91 0100 PIANNED
()OORS OPEN TO CLEAN II.OOR DRAINS ID CS 01 2191
!!50 01 23-91 1700 FORCED FAILURE Of 50 6 832 2321 1A CS 01 30 91 0817 01 30 91 1200 PLANNED DOORS OPEN TO CLEAN FLOOR DRAINS
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TaNe Notes ADS - Automatic Depressurization System HPCI High Pressure Coolant Injection system LPCI Low Pressure Coolant injection system CS Core Spray RHR - Residual Heat Removal system (LPCI Mode)
ST - Surveillance Test RT Routine Test
ATTACHMENT UMERICK GENERATING STATION. UNIT 1 EMERGENCY CORE COOLING SYSTEM UNAVAliABluTY SUMMAM Page 8 h!OD htodiGeation Pht. Preventive blaintenance EQ Emironmental Quali0 cation LLRT Local Leak Rate Test.
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