ML20062F708

LER#78-054/01x-0 on 781213:reactor Was Made Critical w/11 Component Cooling Heat Exchanger Out of Svc & 11 Saltwater sub-sys Partially Drained.Caused by Personnel Error

ML20062F708
Person / Time
Site:	Calvert Cliffs
Issue date:	12/14/1978
From:	Carroll J BALTIMORE GAS & ELECTRIC CO.
To:
References
LER-78-054-01X, LER-78-54-1X, NUDOCS 7812200261
Download: ML20062F708 (1)

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• 7 5 Gl DOCXET NUMgER 68 69 DATE 74 EVENT oESCRIPTION AND PRO 8A8LE CONSEQUENCES h Io !2i i Durine a routine trio recoverv the reactor was made crf tical at 0552. I io iSi l At 0610 the Shift Supervisor recalled that 11 canoonent coolino heat I l o 6 41 I exchanger was out of service and 11 saltwater sub-system was cartiallv i i o ! s i Ld rained, thereby invoking action statements of T.S.3.7.3.1 and T.S.3.7. I io,eiI 5.1. The reactor was shutdown at 0615. Maximum oower level achieved I O i during this event was 10 4 % This is not a recetitive occurrence. I

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causE oEsCRIPTION ANo CORRECTIVE ACTIONS ii e o i l This event was caused by failure of licensed oersonnel to verify that the i m l comoon'ent coolina and saltwater systems were nec in a deoraded condition I g i prior to taking the reactor critical. Corrective action to orevent re- 1

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