05000333/LER-1980-001-03, /03L-0:on 800101,during Surveillance Testing, Average Power Range Monitor E Downscale Trip Found at 2.0/125 Compared to Tech Spec Limit of Equal to or Greater than 2.5/125.Caused by Instrument Drift.Instrument Calibr

/03L-0:on 800101,during Surveillance Testing, Average Power Range Monitor E Downscale Trip Found at 2.0/125 Compared to Tech Spec Limit of Equal to or Greater than 2.5/125.Caused by Instrument Drift.Instrument Calibr

ML19257D118
Person / Time
Site:	FitzPatrick
Issue date:	01/29/1980
From:	W. Verne Childs POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19257D116	List: 05000333/LER-1980-001, Forwards LER 80-001/03L-0 05000333/LER-1980-001-03, /03L-0:on 800101,during Surveillance Testing, Average Power Range Monitor E Downscale Trip Found at 2.0/125 Compared to Tech Spec Limit of Equal to or Greater than 2.5/125.Caused by Instrument Drift.Instrument Calibr
References
LER-80-001-03L, LER-80-1-3L, NUDOCS 8002010338
Download: ML19257D118 (1)

LER-1980-001, /03L-0:on 800101,during Surveillance Testing, Average Power Range Monitor E Downscale Trip Found at 2.0/125 Compared to Tech Spec Limit of Equal to or Greater than 2.5/125.Caused by Instrument Drift.Instrument Calibr

Event date:
Report date:
3331980001R03 - NRC Website

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During surveillance testing APRM E downscale trip was found at 2/125 o

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of scale vice a technical speci fication limit of equal to or greater l

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POWER AUTHORITY OF THE STATE OF NEW YORK JAMES A. FITZPATRICK NUCLEAR POWER PLANT DOCKET NO. 50-333 ATTACHMENT TO LER 80-001/03L-0 Page 1 of 1 During normal operations, while conducting Operating Surveillance Tes t F-ST-5B ti tled "APRM Ins trument Functional Test", to meet the requirements of Technical Speci fications Appendix A, Table 4.1-1, APRM "E" downscale trip was found set at 2.0/125 compared to a Technical Speci fication limit of equal to or greater than 2.5/125.

Technical Speci fication Table 3.1-1 requi res that two of the three APRM's in each trip system be operable.

Since the remaining five APRM channels were functioning normally this requirement was met.

The re fo re, the event did not represent any significant hazard to the public health and safety.

Following recalibration to correct the instrument dri f t, the instrument was demonstrated operable by the successful completion o f F-S T-5 B.

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