05000325/LER-1980-060-03, /03L-0:on 800715,1B Core Spray Discharge Pressure Transmitter Determined Out of Calibr.Caused by Instrument Drift.Calibr Period Revised to six-month Frequency to re-establish Instrument Reliability

/03L-0:on 800715,1B Core Spray Discharge Pressure Transmitter Determined Out of Calibr.Caused by Instrument Drift.Calibr Period Revised to six-month Frequency to re-establish Instrument Reliability

ML19331C764
Person / Time
Site:	Brunswick
Issue date:	08/12/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19331C708	List: 05000325/LER-1980-060, Forwards LER 80-060/03L-0 05000325/LER-1980-060-03, /03L-0:on 800715,1B Core Spray Discharge Pressure Transmitter Determined Out of Calibr.Caused by Instrument Drift.Calibr Period Revised to six-month Frequency to re-establish Instrument Reliability
References
LER-80-060-03L, LER-80-60-3L, NUDOCS 8008190502
Download: ML19331C764 (1)

LER-1980-060, /03L-0:on 800715,1B Core Spray Discharge Pressure Transmitter Determined Out of Calibr.Caused by Instrument Drift.Calibr Period Revised to six-month Frequency to re-establish Instrument Reliability

Event date:
Report date:
3251980060R03 - NRC Website

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60 61 OOCKET NuveER 64 69 EVENT CATE 74 75 REPCRT CATE 83 EVENT DESCRIPTION ANO PROBABLE CONSECUENCES h lo l2l l During the. performance of. PT 7.1.8, Core Spray Maintenance of Filled Dischar;;e l

1o 13] I Pipe, the IB Core Spray discharge pressure transmitter, 1-E21-PT-N001B, General j

e l o I.i l l Electric model No. 551, was determined out of calibration. Both LPCI subsystems l

lo is] I were inoperable.at the time. The event did not affect the health or safety of l

lo Is I i the public.

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Technical Specifications 6.9.1.9b, 3.5.3.1 l

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36 37 43 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h l t l o l l The cressure transmitter was out of calibration due to instrunent drift. The l

11 li i i transmitter was calibrated in accordance with an accreved maintenance instruction I

[,12l l and returned to satisfactory ooeration. This instrument is presentiv calibrated i

Iilal l en an annual basis. To re-establish the instruments ' reliabilitv, the calibration I

i 4 l oeriodicity has been revised to a six-month frecuencv.

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