05000333/LER-1981-044-03, /03L-0:on 810601,w/oxygen Analyzer B Out of Svc, Drywell Oxygen Analyzer a Found Indicating Downscale.Caused by Instrument Drift.Calibr Restored Instrument to Svc

/03L-0:on 810601,w/oxygen Analyzer B Out of Svc, Drywell Oxygen Analyzer a Found Indicating Downscale.Caused by Instrument Drift.Calibr Restored Instrument to Svc

ML20009A562
Person / Time
Site:	FitzPatrick
Issue date:	06/30/1981
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
ML20009A560	List: 05000333/LER-1981-044, Forwards LER 81-044/03L-0 05000333/LER-1981-044-03, /03L-0:on 810601,w/oxygen Analyzer B Out of Svc, Drywell Oxygen Analyzer a Found Indicating Downscale.Caused by Instrument Drift.Calibr Restored Instrument to Svc
References
LER-81-044-03L, LER-81-44-3L, NUDOCS 8107130315
Download: ML20009A562 (1)

LER-1981-044, /03L-0:on 810601,w/oxygen Analyzer B Out of Svc, Drywell Oxygen Analyzer a Found Indicating Downscale.Caused by Instrument Drift.Calibr Restored Instrument to Svc

Event date:
Report date:
3331981044R03 - NRC Website

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NRC FORM 366 (7 77)

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7 8 9 LICENSEE COCE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JG 57 CAI 6d CowT 10lil

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60 61 DOCK ET NLYSER 68 69 EVENT DATE 74 75 REPORT C ATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o 12 l l During normal operation, Drywell Oxycen Analyzer ' A' was found indicatina downscale. !

0xygen Analyzer 'B' was out of service. TS 3.7. A.9 requi red continuous moni toring.

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Portable equipment was placed in service to provide drywell oxygen concentration j

,oga, l data.

No sifnigicant hazard existed.

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9 10 11 12 13 18 19 20 SEQU EN TI A L OCCURAENCE REPORT REVISION LE R AO EVENTYEAR REPORT NO.

CODE TYPE N C.

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Z 26 31 40 41 42 43 44 47 33 CAUSE DESCRIPTtoN AND CORRECTIVE ACTIONS h li j o] l Instrument drift is believed to be the cause.

Calibration restored the instrument l

[TTT1 I to service approximately seven (7) hotrs later.

Drywell oxygen remained within I

,,,7, l the four percent limit of TS 3.7.A.6.

No additional action is ru'uired.

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%PCWER OTHER STATUS ISCO RY DISCOVERY DESCRIPTION Ii 15 l lE l@ l 0 l 9 l 8 l@l NA l

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7 8 9 10 11 PE ASONNEL E XPOSURES NUYBEA TYPE OESCAiPTION l

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DESCRIPTION

l li lu l l O l 0 l 0 lhl NA 80 7

8 9 11 12 LOSS CF C A DAY AGE TO F ACittTV l

TYPE OESCnipTION l1 191 l Z l@l NA 8

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W. Verne ChiIds PHONE-N AME OF PREPsRER i