05000267/LER-1979-062-03, /03L-0:on 791201,during Routine Surveillance Testing,Three Moisture Monitor Flow Transmitters Found Out of Tolerance.Caused by Instrument Calibr Drift.Transmitters Recalibr & Retested Successfully

/03L-0:on 791201,during Routine Surveillance Testing,Three Moisture Monitor Flow Transmitters Found Out of Tolerance.Caused by Instrument Calibr Drift.Transmitters Recalibr & Retested Successfully

ML19257A711
Person / Time
Site:	Fort Saint Vrain
Issue date:	12/28/1979
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19257A710	List: 05000267/LER-1979-062, Forwards LER 79-062/03L-0 05000267/LER-1979-062-03, /03L-0:on 791201,during Routine Surveillance Testing,Three Moisture Monitor Flow Transmitters Found Out of Tolerance.Caused by Instrument Calibr Drift.Transmitters Recalibr & Retested Successfully
References
LER-79-062-03L, LER-79-62-3L, NUDOCS 8001070419
Download: ML19257A711 (1)

LER-1979-062, /03L-0:on 791201,during Routine Surveillance Testing,Three Moisture Monitor Flow Transmitters Found Out of Tolerance.Caused by Instrument Calibr Drift.Transmitters Recalibr & Retested Successfully

Event date:
Report date:
2671979062R03 - NRC Website

text

NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION (7 77)

LICENSEE EVENT REPORT CONTROL BLOCK: l l

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

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8 60 61 DOCKET NUMB ER 68 69 EVENT OATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSECUENCES h o

2 l On December 1,1979, with reactor shutdown for scheduled maintenance, three moisture 1 o

3 l monitor flow transmitters were found out of tolerance during routine surveillance l testing.

Sacole flow requirements of LCO 4.4.1 note (t) could not be verified.

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s l Reportable per AC 7.5.2(b)1 and 7.5.2(b)2.

No affect on public health or safetv.

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CAUSE COMP.

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10 11 12 13 18 19 20 SEQUENTI A L OCCURRENCE REPORT REVISION Lg A no EVENT YEAR R EPORT No.

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03 34 35 36 31 40 41 42 43 64 47 CAUSE DESCRIPTION AND CCARECTIVE ACTIONS h l Cause of flow transmitters being out of tolerance was instrument calibration drift.

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i The transmitters were recalibratei and the surveillance tes t successfully concleted. !

j No further corrective action is antidpated or required.

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