ML19312D225

LER 80-009/03L-0:on 800228,during Surveillance,Testing,Rhr Svc Water Pump P-8-1C Failed to Start.Caused by Broken Lead on Closing Coil in Circuit Breaker.Circuit Breaker Replaced

ML19312D225
Person / Time
Site:	Vermont Yankee
Issue date:	03/17/1980
From:	Murphy W VERMONT YANKEE NUCLEAR POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19312D223	List: ML19312D222 ML19312D225
References
LER-80-009-03L, LER-80-9-3L, NUDOCS 8003210566
Download: ML19312D225 (1)

Text

u. s. NUCLEAR EIULATO:;Y COMMISSION N nC Pones aos~

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LICENSEE EVENT REPORT LER 80-9/3L l CONT;OL 9 LOCK: l -l l (PLEASE PRINT CQ TYPE ALL REOUIRED INFORMATION) l l l lh l ._j @ l ITTT1 7 89 I vLICENSEE l r l vCODE l Y l S l 1 l@l 0 l 0 14 15 l - NUMBEH LICENSE l 0 l 0 l 0 l 0 2510 l- l 0LICENSE l 0 TYPE l@26l4 J0 57 l1 CA f Il 58 11 l1 l@l l CON'T M

F 8 $"C l L hl8101510 l 0 l0 l 21711 l@l 01212 l8 l 810 l@l013 l1 60 DOCKET NUMBER 68 69 EVENT CATE 74 75 REPORT D ATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h ITim i While performing surveillance testing required by Tech. spec. section 4.5.C and the l

[TTP l Inserv ce d Testing Program, one RHRSW pump (P-8-1C) failed to start. The pump was l o 4 l started manual 1y at the circuit breaker. All other components of the RHR Service l o s l Water System were demonstrated to be operable. The circuit breaker was replaced and l

[TTTI lthe pump started satisfactorily. Based on the above, there were no adverse conse- I l o l 7 l l quences to the public health and safety. No previous similar occurrences have been l I

10 ie l l reported to the Commission.

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9 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVIStoN REPORT NO. CCCE TYPE N O.

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_ 21 22 l--J 23 10 lo 19 I 24 26 27 Iol3_J 28 29 LL.J 30 L--J 31 32 TEN AC O ON PL NT ME HOURS 22 S8 i FOR 8. SUP L1 MANUF C RER W@W@ W@ (Z_J@ l0l0l0l0l {g ]2g l A lg lG l0 l8 l047 lg 3J 34 35 36 37 40 41 4 43 44 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h 1 o lThis event was caused by a broken lead on the closing coil in the circuit breaker. l I

E IThe breaker was manufactured by General Electric, Model AM 4.16 250-8HB. The i 2 l corrective action was to replace the circuit breaker and demonstrate satisfactory [

lil3l l operation of the RHRSW pump. l l

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NAME OF PREPARER W. P. Murchv PHONE: $

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