05000318/LER-1979-017, Forwards LER 79-017/03L-0

Forwards LER 79-017/03L-0

ML19270G411
Person / Time
Site:	Calvert Cliffs
Issue date:	05/31/1979
From:	Russell L BALTIMORE GAS & ELECTRIC CO.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19270G410	List: 05000318/LER-1979-017, Forwards LER 79-017/03L-0 05000318/LER-1979-017-03, /03L-0 on 790520:during Surveillance Testing, Diesel Generator 21 Failed to Start Upon Actuation of Remote Start Switch.Caused by Normally de-energized Low Speed Relay Being Energized During Initial Test
References
NUDOCS 7906060289
Download: ML19270G411 (1)

LER-1979-017, Forwards LER 79-017/03L-0

Event date:
Report date:
3181979017R00 - NRC Website

text

NRC FORM 366 v. a. e= ww6 san n cuuta s un e su

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60 68 DOCKET NUMBER G3 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AN'D PROBABLE CONSEQUENCES h o 2 i Durina conduct of surveillance testina 21 diesel cenerator failed to start at i

o a i 1358 uoon actuation of its remote start oushbutton. The diesel's remote stoo I

1 oushbutton was d oressed and the test was successfully conducted.

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o s I cenerator, which was assioned to Unit 2, remained ooerable throuchout this 1

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ievent. This is not a recetitive occurrence.

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started only with its local start pushbutton. Pushino the stoo button de-enercized i

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l LSB and returned the diesel to auto control. LSB remained enercized when lube i

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NAME OF PREPARER PHcNE:

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LER 79-17/3L EVENT DATE 5/20/79 REPORT DATE 5/31/79 DOCKET NO. 50-318 ATTACHMENT CAUSE DESCRIPTION AND CORRECTIVE ACTIONS ~(CONTINUED)

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when 21 diesel generator was shutdown at 1400 on 5/19/79. To prevent recurrence of.this event, desian rodifications will be made to insure that pressure switch "0PS" cpens before relay 5 times out. Until

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that relay LSB de-energizes each time 21 diesel generator is shutdown.

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