ML20028D948

LER 82-005/03L-0:on 821205,during Mode 5,diesel Generator 3GOO3 Taken Out of Svc Leaving Boration Flow Paths W/O Emergency Power Sources.Caused by Personnel Error Due to Failure to Recognize Consequences.Personnel Counseled

ML20028D948
Person / Time
Site:	San Onofre
Issue date:	01/04/1983
From:	Ray H SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
Shared Package
ML20028D928	List: ML20028D927 ML20028D948
References
LER-82-005-03L-02, LER-82-5-3L-2, NUDOCS 8301200109
Download: ML20028D948 (1)

Text

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NRC FORM 354 U. S. NUCLEAR nE2ULATCRY COMMISSION

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EVENT DESCRIPTION ANo pro 8ABLE CONSEouENCES h o 2 l Diesel Generator 3G003 was taken out of service and as a result no boration flow l g l paths powered by emergency power sources were available contrary to Technical i ITTTl ISpecification Section 3.1.2.3. There was no impact on plant operation or the health l 0 s land safety of plant personnel or the public associated with this event. l 0 s l l I

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44 47 CAusE DESCRIPTION AND CORRECTIVE ACTIONS h li la l l Loss of boration flow paths powered by emergency power sources was caused by failure to recognize the effect of taking Diesel Generator 3G003 out of service i i lqiven that other paths were not available to satisfy the LCO. 3G003 was returned I to service at 0600 on December 5,1982 Responsible Operations personnel have i 2 l reviewed the circumstances of this event and have been directed to perform a i more detailed review of the impact on plant operations of taking a diesel generator U_13J Inut of service. This will also be included in their monthlv retrainino session. I i 4 l 1 7 8 9 80 STA  % POWER OTHER STATUS DiCO Y DISCOVERY DESCRIPTION L'_Ls_J l_B_.J@ 101010 l@l N/A l [B_l@lOperatorReview l

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