ML20028E813

LER 82-107/03L-0:on 821227,steam Generator 3 Stop Dump Valve MRV-231 Removed from Svc.Caused by Need to Repair Seat Leakage.Valve Stem,Stem Pin Plug,Seat & Cage Replaced

ML20028E813
Person / Time
Site:	Cook
Issue date:	01/21/1983
From:	Wizner D INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20028E803	List: ML20028E802 ML20028E813
References
LER-82-107-03L-01, LER-82-107-3L-1, NUDOCS 8301280215
Download: ML20028E813 (1)

Text

NRC#CRM 364 iM7)

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el OQcd ET NLMgga 64 69 EVENT QATE I4 75 REPORTArt 50 EVENT OESCRIPT1CN AND PRCBA8LE CONSEQUENCES O'o lo#2l f DURING NORMAL OPERATION, N0. 3 S/G STOP VALVE DUMP VALVE, MRV-231, WAS REMOVED FR

, e ,3 ; i SERVICE TO REPAIR SEAT LEAKAGE. THIS CONDITION PLACED N0. 3 STEAM GENERATOR STOP l

t0i4i l VALVE IN A LESS CONSERVATIVE CONFIGURATION THAN REQUIRED BY T.S. 3.7.1.5. THE I l3 is; i REDUNDANT VALVE REMAINED OPERABLE. ACTION REQUIREMENTS WERE MET. PUBLIC HEALTH I ia is i l AND SAFETY WERE NOT AFFECTED. SIMILAR OCCURRENCES: R0's82-085, 82-017 AND FOR I i c ! 71 l DOCKET 050-316;81-068, 81-069,81-070 AND 82-038. I i24i l i

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[N lg PCR 8. 5 Petit l Njg lAl@ lFl1l2l7lg 42 VA UFAC RER 43 44 47 CAuSE cEsCRipTicN ANo ecRREcrivE ACricNS g iall THE VALVE WAS RtM0VED FROM SERVICE TO REPAIR SEAT LEAKAGE. THE VALVE STEM, STEM l I1 ,i1i PIN, PLUG, SEAT AND CAGE WERE REPLACED IN THE FISHER STYLE 657 EAS VALVE AND THE I

i i , i fi 1 VALVE WAS RETURNED TO SERVICE IN 3 HOURS AND 34 MINUTES. SEAT LEAKAGE IN VALVES IN I li iil l THIS TYPE OF SERVICE IS NOT TOTALLY PREVENTABLE. NO FURTHER ACTION IS PLANNED. I tue!I I C

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