05000318/LER-1981-027-03, /03L-0:on 810602,during Surveillance Testing,Hpsi Pump 23 Failed to Start.Caused by Failure of Control Time Delay Relay.Relay Replaced

/03L-0:on 810602,during Surveillance Testing,Hpsi Pump 23 Failed to Start.Caused by Failure of Control Time Delay Relay.Relay Replaced

ML20009A691
Person / Time
Site:	Calvert Cliffs
Issue date:	07/02/1981
From:	Junge M, Rizzo P BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20009A689	List: 05000318/LER-1981-027, Forwards LER 81-027/03L-0 05000318/LER-1981-027-03, /03L-0:on 810602,during Surveillance Testing,Hpsi Pump 23 Failed to Start.Caused by Failure of Control Time Delay Relay.Relay Replaced
References
LER-81-027-03L, LER-81-27-3L, NUDOCS 8107130477
Download: ML20009A691 (1)

LER-1981-027, /03L-0:on 810602,during Surveillance Testing,Hpsi Pump 23 Failed to Start.Caused by Failure of Control Time Delay Relay.Relay Replaced

Event date:
Report date:
3181981027R03 - NRC Website

text

f NRC FORM 366 50 M M OC'TN N (7 7W

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LICENSEE EVENT REPORT CONTRCL BLOCK:

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8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JO 57 CAT 58 CON'T SYRSlLl@l0lSl0l0l0l3l118J@l01610l2l811l@l0l7l012l8l1 l@

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8 60 61 DOCKET NUM8ER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 10121 l At 1800 during surveillance testina. #23 HPSI Pumo failed to start on e I

iO iai l SIAS "B-2", but pump did start satisfactorily from the Control Room I

1014 I I (T.S. 3.5.2a). #21 HPSI Pump remained operable during this event. A I

FOTs1 I relay was replaced, #23 HPSI Pump was tested and returned to service at I

iO is i I 0030 on 06-03-81. No similar events have been reported.

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43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h 1 1011

1. 23 HPSI Pumo Motor Breaker would not close due to the failure of con-I li lii I trol time delay relay 2/SB2 ( Aaastat #7012PB).

The relay's normally noen I

i, i2i i contact would not close, and it was reolaced with a like snare. Because I

mI this has not been a repetitive event. no oreventive action is deemed I

ii14i l necessary.

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% POWER OTHER STATUS dis O RY DISCOVERY DESORIPTION

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DESCRIPTION

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