05000293/LER-1980-051-03, /03L-0:on 800813,while Performing Surveillance Test,Reactor Water Level Instrument L1S 263-72B,switches 3 & 4,exceeded Setpoint Limit.Caused by Setpoint Drift. Instrument Recalibr & Returned to Svc

/03L-0:on 800813,while Performing Surveillance Test,Reactor Water Level Instrument L1S 263-72B,switches 3 & 4,exceeded Setpoint Limit.Caused by Setpoint Drift. Instrument Recalibr & Returned to Svc

ML19343A217
Person / Time
Site:	Pilgrim
Issue date:	09/11/1980
From:	Mcloughlin M BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19343A213	List: 05000293/LER-1980-051, Forwards LER 80-051/03L-0 05000293/LER-1980-051-03, /03L-0:on 800813,while Performing Surveillance Test,Reactor Water Level Instrument L1S 263-72B,switches 3 & 4,exceeded Setpoint Limit.Caused by Setpoint Drift. Instrument Recalibr & Returned to Svc
References
LER-80-051-03L, LER-80-51-3L, NUDOCS 8009160455
Download: ML19343A217 (1)

LER-1980-051, /03L-0:on 800813,while Performing Surveillance Test,Reactor Water Level Instrument L1S 263-72B,switches 3 & 4,exceeded Setpoint Limit.Caused by Setpoint Drift. Instrument Recalibr & Returned to Svc

Event date:
Report date:
2931980051R03 - NRC Website

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8 60 61 DOCKET NUMSER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h lol2l l On August 13, 1980 at approximately 1500 hours0.0174 days <br />0.417 hours <br />0.00248 weeks <br />5.7075e-4 months <br /> while performine surveillance test I

lo tal I 8r.M.2-2.1.1 reactor water level instrument L1S 263-72B, switches 3 and 4, were found l

]O i4 i L to have exceeded their setpoint limit as specified in Table 3.2.B of PNPS Technical I

lo Isl l Specifications. The instrument was recalibrated and returned to service.

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y interval has temporarily been reduced from three to one month.

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