ML19338G199

LER 80-053/03L-0:on 800926,during Maint Shutdown Period, Seminannual Test of Standby Diesel Generators Revealed Inoperability of 1B Programmer.Caused by Faulty Wire Position Which Impeded Relay Contact.Wire Repositioned

ML19338G199
Person / Time
Site:	Fort Saint Vrain
Issue date:	10/24/1980
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19338G161	List: ML19338G160 ML19338G199
References
LER-80-053-03L, LER-80-53-3L, NUDOCS 8010280586
Download: ML19338G199 (1)

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RgPoRT cATE 7 8 60 61 coCKETNuMBER 68 EVENT cATE EVENT OESCRIPTION AND PROS ABLE CONSEQUENCES h l o I:1 l On September 26. 1980, during a maintenance shutdown period, the semi-annual test of l  ;

I o l a i i the standby diesel generators and associated automatic load shedding and pro- l I o t 4 I l gramming equipment revealed that 1B progra=mer did not operate. The redundant 1A pro-l laisl l grammer was operable and available. Reportable as a degraded mode of LCO 4.6.1d)3 perl l o l6 ! l Fort St. Vrain Technical Specification AC 7.5.2(b)2. There was no affect on public l I

l o 17 I l health or safety. No similar occurrence. l 10681I l 7 ea a0 i

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sEcutNTAL OCCURRENCE RE* ORT 4EVisloN LE4 EVENT YE AR REPonT No. CooE TYPE No.

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44 47 CAUSE MSCRIPTION AND CORRECTIVE ACTIONS h IiloliThe failure of 1B program was due to a wire which interfered with the coeration of onel ii ;i i l relay contact. It appears that the wire was inadvertently repositioned. The wire wasi I

,,,,,l repositioned to prevent interference. The other wires on this relay were checked.  ;

g l Personnel =a 'e aware of the situation. The surveillance test was satisfactor11.y l

,,,,,lco=pleted. P iay type GE-HEA. l 7 3 3 90

'sT A  % PoWEP oTHER STATUS i o RY DISCOVERY oEsCRIPT oN l li is I l cl@ l0 l 0 l J@[N/A

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