ML20040A556

LER 81-079/03L-0:on 811223,during Normal Operation,Diesel Fire Pump Running Alarm Annunciated in Control Room.Caused by Humidity & Dust Particles Which Actuated Ionization Type Detector.Hpci Room Fire Sys Will Be Reviewed

ML20040A556
Person / Time
Site:	Dresden
Issue date:	01/14/1982
From:	Schroeder B COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20040A549	List: ML20040A548 ML20040A556
References
LER-81-079-03L, LER-81-79-3L, NUDOCS 8201210240
Download: ML20040A556 (2)

Text

LICENSEE EVENT REPORT

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4 60 61 OOCKET NUM8ER 68 69 74 75 40 EV ENT QATE REPORT QATE EVENT DESCRIFTION AND PROBA8LE CCNSECUENCES h Ioi2l l Durine normal operation, a " Diesel Fire Puno Runnine" alarn annunciated in control roo . l IoIa] l It was determined upon investigation that the fire protection deluge system had actuated l l lo!4t l in the HPCI roca. The HPCI system was declared inop. due to water in HPCI oil sample l l[oj5; ; (T.S.3.5.c), and the required surveillances conducted. Health and safety of the general j io ts l l public was not endangered since all other required safety systems were operable. l

e;7, ; Previous Occurrence

L.E.R. 81-39, Docket 050-249.

l lotali I 7 8 9 40 SYSTEM CAusii CAUSE COMP.

Cect VALVE CcoE susCocE COMPCNENT CCOE SueCODE SUSCCCE la(9l 7 8 l S l F lh lB lh l A lh l Il Nl S lT lR lU lh l Elh l7 lh 9 10 11 12 13 18 19 20

_ SEQUENTIAL CCCURRENCE REPORT REVISICN LE R/ RO EV ENT YEAR REPCRT NO. COCE TYPE NO.

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40 42 43 4A 47 CAUSE CESCatPTTCN AND CCRRECTIVE ACT1CNS @

l i l o l l Cause of the fire systen inittstion is believed to be 2 kink conconernefan n f h-f a 4 *,7 I Ii l I l and dust parti-les which souriousiv actuated the iqnization tvne detecenr. All nffor*nd I

,,,,, l equipment including the fire system detector has been checked for operability and re- I

,, 33, j turned to service. Station Fire Marshal and SNED will review the HPCI room fire system l

, , ,, , ; for possible modifications to improve reliability. l 7 4 3 80 TUS  % PCWER OTHER STATUS Q1 C Y CISCOVERY QE5CRfPT10N N/A Operator Observation

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lt l3ll0l0l0l@l 7 4 3 11 12 N/A l 80 LOSS OF CR CAMAGE TO PACIUTY TYPE DESCRIPTION I t 191 7 4 9 i el@l10 , " ,

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7 ea 10 sa es 30. g NAME CF PREPARER B. A. SchreeA*" 819- 4'-'O'n Y 9^Q PHONE:

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g% Commonw cith Edison ovR No-DEVIATION REPORT 12 - 2 - 81 - 139

( / STA UNIT YEAR NO.

PARf I l TITLE OF DEVI ATION OCCURRED HPCI Inop. Due To Deluge Actuation 12-23-81 1210 SYSTEM AFFECTED PLANT STANS AT TIME OF EVENT TESTING 2300 HPCI MODE Unn . PWR(MAT) MIR . LOAD (MAE) 831 YEs o CESCRIPTION OF EVENT At approximately 1105, HPCI room deluge system actuated spraying the HPCI room. At 1210, HPCI oil sample showed significant amount of water in sample, thus HPCI declared inop. Required surveillance initiated immediately. Cause of deluge actuation unknown at this time.

10 CFR50.72 NRC RED PHONE O NOTIFICATION MADE YES NO EQUIPVENT F A ILURE yf 3 0vES QNO .OR< REOuEST NO. RESPO~SietE SUPERVISOR J. Kotowski 0 ATE 12-23-81 PART 2 l 0PERATING ENGINEER'S CCWENTS HPCI system declared inoperable at 1210 hours0.014 days <br />0.336 hours <br />0.002 weeks <br />4.60405e-4 months <br />. Control switches for HPCI Auxiliary 011 Pumps placed in the pull to lock position and pumps taken 0.0.S. Required surveillances initiated. Plans to replace the HPCI lube oil were initiated.

I O EVENT OF PU BL I C INTEREST 2 4- HOUR NRC NOTI F I CATI ON REQ'D TECH. SPEC. VIOLATION TELEPH Tom Tongue (courtesy) 12-23-81 1230 RLGION III CATE TIME NON REPORTABLE OCCURRENCE TELEGu/TELECOPY 14 OAY REPORTABLE /T.S. REGION lli DATE TIME h 30 DAY REP OR TA BLE/ T. S.6. 6. B . 2. b . ,

ANNUAL.'SPECL REPOR T REO'D O IF ABOVE NOTIFICATION IS PER 10CFR21 A.I.R. #

$. DAY #RITTEN REPORT REQ'D PER 10CFR21 L.E.R. = 91 To/nW-0 F. A. Palmer 12-24-81 1450 TELEPH l' CEC 3 CORPORATE OFFICER CATE TIME 1

1. RELIMINARY REPORT COMDLETED AND REVIEWED John W. Wujciga 12-23-81 OPER A fl NG ENGINE Eq , DATE ,

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RE SOLU T ION APP 90VED AND AUTHORIZED FOR DISTRIBUTION

/ (,A.) / [ 2 96 9176 SIA SUPERINTENCENT # 0/TE (FORM tS.52.t! 10 61 1