05000267/LER-1979-057-03, /03L-0:on 791030,during Surveillance Testing,One of Three Reactor Pressure Transmitters Found Out of Calibr. Instrument Settings Less Conservative than Required.Caused by Instrument Drift.Instrument Recalibr

/03L-0:on 791030,during Surveillance Testing,One of Three Reactor Pressure Transmitters Found Out of Calibr. Instrument Settings Less Conservative than Required.Caused by Instrument Drift.Instrument Recalibr

ML19210E312
Person / Time
Site:	Fort Saint Vrain
Issue date:	11/29/1979
From:	Gahm J PUBLIC SERVICE CO. OF COLORADO
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19210E311	List: 05000267/LER-1979-057, Forwards LER 79-057/03L-0 05000267/LER-1979-057-03, /03L-0:on 791030,during Surveillance Testing,One of Three Reactor Pressure Transmitters Found Out of Calibr. Instrument Settings Less Conservative than Required.Caused by Instrument Drift.Instrument Recalibr
References
LER-79-057-03L, LER-79-57-3L, NUDOCS 7912040323
Download: ML19210E312 (1)

LER-1979-057, /03L-0:on 791030,during Surveillance Testing,One of Three Reactor Pressure Transmitters Found Out of Calibr. Instrument Settings Less Conservative than Required.Caused by Instrument Drift.Instrument Recalibr

Event date:
Report date:
2671979057R03 - NRC Website

text

NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION (777)-

LICENSEE EVENT REPORT CONTROL BLOCK:

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8 60 61 OOCKET mVM8tR 68 69 EVENT OATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h O

2 lOn October 30, 1979, during normal surveillance testing. one of three reactor pressure O

3 l transmitters was found to be out of calibration. This resulted in operation with l

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l instrument settings less conservative than reOuired by Fort St. Vrain Technirn1 I

l Specification LCO 4.4.1, and is reportable per AC 7.5.2(b)1 and AC 7.5.2(b)2. There l O

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