ML19340C494

LER 80-023/03L-0:on 801019,standby Gas Treatment Sys B Filter Assembly Inlet Isolation Valve AO-00476-01 Failed to Open.Caused by Ruptured Diaphragm.Valve Replaced & Proper Solenoid & Isolation Valve Operation Verified

ML19340C494
Person / Time
Site:	Peach Bottom
Issue date:	11/07/1980
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
LER-80-023-03L-01, LER-80-23-3L-1, NUDOCS 8011170493
Download: ML19340C494 (1)

Text

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. ; .; ; 3 deiec, S ecc Wr No. 2-80-23/3L

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_a ar Mr. w.esers This L.E.R concerns failure of a standby gas treatment system inlet isolation valve to operate. Governing Technical Specification is 3.7.B.1 U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT cONTROi BLOCet l } l l !

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4 lh (PLEASE PRINT OR TYPE ALL REQUIRED INPQRMATION)

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-~ ' During a Surveillance Test of the Standby Gas Treatment Syst with I the Unit at full power, the 'B' filter assembly inlet isolation. 1

^ ] _ valve (AO-00476-1) failed to open due to a ruptured diaphragm in its l

-] solenoid actuating valve (SV-00476-1). The redundant system was l

' verified operable. Coverning Technical Specification is 3.7.B.1.  !

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cm.ss cEscRiPricN ANo CORRECTIVE ACTIONS h j The cause of the solenoid valve (ASCO catalog #THB 8316C24) failure [

7 i was a ruptured diaphrag:n. The solenoid valve was replaced and t

, j proper solenoid and isolation valve operation verified.  ;

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