ML20027A121

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LER#78-051/03L-0 on 780907:during Survey Dis 1600-11,valve #2-1601-24 Failed to Oper in Specified Time Limit,Probably Caused by Foreign Matter Lodging in Solenoid Oper 4-way Valve
ML20027A121
Person / Time
Site: Dresden Constellation icon.png
Issue date: 10/02/1978
From:
COMMONWEALTH EDISON CO.
To:
Shared Package
ML17173A282 List:
References
LER-78-051-03L, LER-78-51-3L, NUDOCS 7810130170
Download: ML20027A121 (1)


Text

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, EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h REPoR7 oATE 80 1 o l 21 [ While performing surv. DIS ~

1600-11 (Press. Suppression Air Oper .

Viv. press sw. setpt I o131 l e .) valve 2-1601-24 failedtooperaheinthespecifiedtimelimitrequiredbyTS . .

S 4j [ 4s7.D.1.a, Table 3.7.1. J Safety significance minimal because redundant (inboard) iso- I oisj l 1ation valve was operable and would have provided containment pec-

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