05000255/LER-1981-006, Forwards LER 81-006/03L-0

Forwards LER 81-006/03L-0

ML18046A404
Person / Time
Site:	Palisades
Issue date:	02/16/1981
From:	Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18046A407	List: 05000255/LER-1981-006, Forwards LER 81-006/03L-0 05000255/LER-1981-006-03, /03L-0:on 810119,drain Valve,Mv 504 Fps,In Southwest Cable Penetration Room Fire Sprinkler Supply Line Failed.Caused by Bonnet Separating from Valve Body Due to Overtightening.Valve Replaced
References
NUDOCS 8102190575
Download: ML18046A404 (2)

LER-1981-006, Forwards LER 81-006/03L-0

Event date:
Report date:
2551981006R00 - NRC Website

text

consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201 * (517) 788-0550 February 16, 1981 Mr James G Keppler Office of Inspection and Enforcement Region III U S Nuclear Regulatory CoI!IDl.ission 799 Roosevelt Road Glen Ellyn, IL 60127 DOCKET 50-255 - DPR PALISADES PLANT - LICENSEE EVENT REPORT 81-006 -

INOPERABLE FIRE SPRINKLERS On the reverse side is LER 81-006 which'is '.rE'.portable under Technical Specifi-cations 6.9.2.B(2).

David P Hoffman Nuclear Licensing Administrator CC Director, Office of Nuclear Reactor Regulation Director, Office of Inspection and Enforcement NRC Resident Inspector, Palisades Plant S lD'Z-f°IO 5?5.

FEB 1 91981

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PALISADES PLANT NRC FORM 366.

(7-771 U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPO.RT CONTROL BLOCK: I I(!)

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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I M I I I p I A Ir, I 1 1010 I 0 I -I 0 I 0 I 0 I 0 10 7

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LICENSEE CODE 14

'S LICENSE NUMBER I-I o I o 1014 I ll 1 I ll 1 l©I I 10 2S 26 LICENSE TYPE JO 57 CAT !>8 CON'T [ITIJ 7

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=~:~~! ~Io 15 lo Io lo 12 I 515 K?)lo 60 61 DOCKET NUMBER 68 69 EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES@

1111 I 2 I 8 11 IG)I o I 2111 61 e 11 IG)

EVENT DATE 74 7S REPORT DATE 80

((II] I During performance of fire sprinkler system testing, the drain valve in

[))TI I the southwest cable nenetration room fire spriilkle:r su12:r;ily line failed.

Tbe condition occurred during onening of the* valve.

A contirn1011s fjre watch with fire suppression equipment was established~ Sprinkler system was jnoperab 1 e for approx. 20 -mi mites.

I.CO of TS 3.22.3 and reportinc:r

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[§JI] I requirements of TS 6.9.2.B2 apply, Event not repetitive.. No adverse

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[)))) I effect. on p11bl i c health or safety.*

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SYSTEM

CAUSE

CAUSE CODE CODE SUBCODE COMPONENT CODE IA IB I@ LU@ lliJ@ I VIA I LIV IE IX 18 COMP. ;

VALVE SUB CODE SUBCODE LI@ lXJ@

9 10 11 12 13 18 19 20

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LERIRO CVENT YEJ.R

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REPORT I 8 I lj SEQUENTIAL OCCURRENCE REPORT REPORT NO, CODE TYPE l=.I I o I o I 6 I

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~ l=.I 23 24 26 2 7 28 29 30 31 NUMBER ~ 2 ACTION FUTURE EF*ECT SHUTDOWN r.:::;.,

ATTA<:HMENT NPRD-4 PRIME COMP.

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ON 'LANT METHOD HOURS ~ SUBMITTED FORM ~us.

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44 47 CAUSE DESCRIPTION A ~O CORREC'rlVE ACTl~NS @

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[IIT] I The valve (MV 504 FPS) had a' :r;irerious history of leakage. which had beE:n._j controlled by tightening of the valve 'bonnet..Overtightening apparentj:l__J occurred, resulting in weaking of the vaJye and leading to failure

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Valve was replaced.

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FACILl':'Y *

'3{)I STATUS

%POWER OTHERSTATUS ~

~.ID LI!@ lo I 2 l sJ@.... I N;,_A ____

BO METHOD OF

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DISCOVERY OISCOl/ERY OESCRIPTIO"' ~

l!J§L Operator observation

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• ACTIVITY,.

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RELEASED OF RE*LEASE AMOUNT OF ACTllllTY ~

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... PERSONNEL EXPOSURES r:;;:;,.

NUMBEP r::-:;., TVPE DESCRIPTION~

Q2J I 01 0 I 0 1'2.?.ll?J*~.___NA ______________________ __j 45 46 BO LOCATION OF RELEASE L__ NA

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80 7

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11 12 13 80 PERSON"'EL INJURIES

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NUMBER DESCl'IPTION6 [QJ I ol o lo l@)

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80 LCSS o< 0" DA**t.GE TO FACILITY t;;'I T't"PE DLSCRIPTlON V:.:V

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