05000333/LER-1980-063-03, /03L-0:on 800717,during Normal Shutdown, Surveillance Revealed That Average Power Range Monitor E Indicated 48 When Required to Read Between 49 & 51.Caused by Instrument Drift.Monitor Recalibr

/03L-0:on 800717,during Normal Shutdown, Surveillance Revealed That Average Power Range Monitor E Indicated 48 When Required to Read Between 49 & 51.Caused by Instrument Drift.Monitor Recalibr

ML19331C850
Person / Time
Site:	FitzPatrick
Issue date:	08/14/1980
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
ML19331C843	List: 05000333/LER-1980-063, Forwards LER 80-063/03L-0 05000333/LER-1980-063-03, /03L-0:on 800717,during Normal Shutdown, Surveillance Revealed That Average Power Range Monitor E Indicated 48 When Required to Read Between 49 & 51.Caused by Instrument Drift.Monitor Recalibr
References
LER-80-063-03L, LER-80-63-3L, NUDOCS 8008190623
Download: ML19331C850 (1)

LER-1980-063, /03L-0:on 800717,during Normal Shutdown, Surveillance Revealed That Average Power Range Monitor E Indicated 48 When Required to Read Between 49 & 51.Caused by Instrument Drift.Monitor Recalibr

Event date:
Report date:
3331980063R03 - NRC Website

text

rTm LICENSEE EVENT REPORT CONTROL BLCCK: I l

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l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 6 lo j i j l N l Y l J l A l F l I l@l 0 l0 l-l 0 l0 l0 l0 l-lOI0l'0l@l4!1lIl1lIl@l l

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7 8 9 LICENSEE COOE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JO 57 CAT Sa CON'T IoI1l 3c,"C l L @l 0 l 5 10 l 0 10 13 l 3 l 3 @ln 17 13 l7 l8l0 @l0Isl1l4l9 lo l@

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60 61 QQCKET NUMB ER 68 69 EVENT QATE 74 75 SEPORT QATE 30 EVENT OESCRIPTION AND PROBABLE CONSECUENCES h l l o 121 lDurine normal shutdown. surveillance conducted to satisfy TS Table 4.2-3 I

Io i3l l revealed that Average Power Range Monitor (APR51) E indicated 48 when i

Ioiai frequired to read between 49 and 51.

The other seven(7) APR51 channels were I

loisl l fully operable. The event did not represent a significant hazard to the l

lotsj lpublic health and safety.

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to 11 12 13 18 19 20 SEQUENTI A L OCCURRENCE REPCRT REVISION LER EVENT YEAR REPCRT NO.

COCE TYPE N C.

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l i j o l l The out of tolerance indication was caused bv instrument drift.

Recalibratinn l

1 I i l i i l on the same day restored APR31 E to fully operable status.

No addi ti nn,1 I

g,;7l l action is required.

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8 9 10 11 44 45 80 PERSONNEL EXPCSURES NUM8ER TYPE CESCRIPTICN NA j

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7 8 9 11 12 80 LOSS OF CR CAMACE TO FACILtTV TYPE CESCRIPTION l t 19 l l Z l@l NA l

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