05000289/LER-1978-006-03, /03L-0:on 780124,during Normal Operation,Reactor Coolant Sample Isolation Valve CA-V13 Failed to Close When Actuated by Remote Signal.Caused by Valve Stem Thread Wear. Containment Isolation Valve CA-V2 Closed

/03L-0:on 780124,during Normal Operation,Reactor Coolant Sample Isolation Valve CA-V13 Failed to Close When Actuated by Remote Signal.Caused by Valve Stem Thread Wear. Containment Isolation Valve CA-V2 Closed

ML19261F257
Person / Time
Site:	Crane
Issue date:	02/21/1978
From:	Stevens R METROPOLITAN EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19261F255	List: 05000289/LER-1978-006, Forwards LER 78-006/03L-0 05000289/LER-1978-006-03, /03L-0:on 780124,during Normal Operation,Reactor Coolant Sample Isolation Valve CA-V13 Failed to Close When Actuated by Remote Signal.Caused by Valve Stem Thread Wear. Containment Isolation Valve CA-V2 Closed
References
LER-78-006-03L, LER-78-6-3L, NUDOCS 7910250693
Download: ML19261F257 (1)

LER-1978-006, /03L-0:on 780124,during Normal Operation,Reactor Coolant Sample Isolation Valve CA-V13 Failed to Close When Actuated by Remote Signal.Caused by Valve Stem Thread Wear. Containment Isolation Valve CA-V2 Closed

Event date:
Report date:
2891978006R03 - NRC Website

text

NRC FOR 4 3o6 I

U LEAR REGULATORY COMMISSION Q77) clCENSEE EVENT REPORT CON $ROL SLOCK: l l l

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6 60 61 OOCKET NUMB ER 68 69 EV ENT C ATE 74 75 REPORT D ATE 80 EVENT DESCRIPTION ANO PROB ABLE CONSECUENCES h oi2 l During nor=al operation, RC Letdevn 3a=ple Isolation Valve CA-713 failed to close i

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l vhen actuated by a re=cte signal. The valve was being closed upon ec=pletic: cf the i l routine RC sa:pling. Sis event is reportable per Technical Specification 6.9.2.3(2).1 o

oi5 lContain=ent Isolaticn Valve CA-V2 was prc=ptly closed thus preventing m y threat to I

o,6 l the health a=d safety of the public. Similar Events: 77-28/3L.

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