ML19263C258

LER 78-036/03L-1 on 781129:one Engine of Two Driving Single Emergency Generator Failed to Start & May Have Failed to Declutch from Generator,Thus Rendering Generator Inoperable for Two Days.No Cause Identified

ML19263C258
Person / Time
Site:	Fort Saint Vrain
Issue date:	02/06/1979
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19263C257	List: ML19263C256 ML19263C258
References
LER-78-036-03L, LER-78-36-3L, NUDOCS 7902130145
Download: ML19263C258 (3)

Text

N AC FORM 066 U. S. NUCedAA REGULxTC AY CCMMISSa0N 17 77) ,

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L;CENSEE COCE 14 5 LICENSE NUMBER 25 26 LaCENSE TYPE JO l

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REPCRT O ATE EVENT DESCRIPTION AND PACBA8tE CONSECUENCES h a 2I l One en2ine of the two drivina a single ererzency 2enerator failed to start when re- I oia l quired and may have failed to declutch from the generator af ter failing to start. l 0 4 l This combination of failures, if true, rendered the generator inoperable contrarv to [

oi5 lLCO 4.6.1. The generator is considered to have been inoperable for two days fol. lowing l 3 is l co=pletion of las t surveillance test which is allowable by LCO 4.6.1. l 0l7 l l

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12 13 id 19 20 SEQUENTIAL CCOUR1ENCE PEPORT REVIS!CN LEA Ao EVENT YE AR AEPORT No. CODE TYPE No.

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33 24 Ja , 6 3 40 'l CAUSE DESCRIPTION AND CORRECTIVE ACTICNS 1 3 I No cause fo r the failure to start or ,oesible f141"re to declutch has been identi- I i i l fled. Subsecuent tests have been unable to recent f ailure to start or f ailure to I i  : 1 declutch. No corrective action taken or clanned. 1 I I3 l _]

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i4 l i 3 so S ACit!'Y a VE*HOCCF A e'ATUS  % 8CWER OTHER STA TUS

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• EPSCNNEL N;L AiES NUv2E9 O E S OT P*I O N 1 I

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'303; 735-2253