ML19262A940

LER 79-051/03L-0:on 791103,during Surveillance Test on Turbine Driven Auxiliary Feedwater Pump,Pump Tripped on Overspeed.Caused by Misadjustment of Manual Speed Due to Leak of Position Markings.Manual Control Adjusted

ML19262A940
Person / Time
Site:	Farley
Issue date:	12/03/1979
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19262A938	List: ML19262A937 ML19262A939 ML19262A940 ML19262A941 ML19262A942
References
LER-79-051-03L, LER-79-51-3L, NUDOCS 7912110337
Download: ML19262A940 (2)

Text

NRC FORM 366 (7 77) U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: l l l l l 1

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61 COCK ET NuvaER 68 69 EVENT DATE 74 75 REPORT OATE dJ EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h o 2 l At 1345 On 11/3/79 durine performance of the surveillance test on the etirMng a - n.on I o 3 lauxiliarv feedwater cump (TDAFk?), the TDAFb7 tripped on oversneed. Tech. S6ec. I o A I3.7.1.2 recuires at least 3 independent steam eenerator aux f e ed wn t ee nn ,na l o 5 l associated f1Ow oaths to be Ocerable. The Tech. Snee. 3.7.1.2 action statement 1 0 6 l recuirements were met. The health and safety of the w o-,1 m A14 c " pen -r , U-od - l 0 7 l 0 8 l l

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LER 79-051/03L-0 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS During perfor=ance of the surveillance test on the TDAFK? on 10/26/79, the manual speed adjust in the turbine local panel was adjusted in an attenpt to bring the turbine up to speed with low steam pressure. The manual speed adjustment was left misadjusted due to lack of position markings. The manual speed control was adjusted and the TDAFWP was verified operable at 1450 on 11/3/79. A modification will be incorporated to add a knob with a pointer and a scal to allow resetting of the manual speed adjuster to the proper value after maintenance or testing.

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