05000366/LER-1981-081-03, /03L-0:on 810830,2B21-R615 Reactor Water Level Recorder Found Reading Faulty.Caused by Brooks Transmitter/ Converter Out of Tolerance.Brooks Transmitter/Converter Recalibr

/03L-0:on 810830,2B21-R615 Reactor Water Level Recorder Found Reading Faulty.Caused by Brooks Transmitter/ Converter Out of Tolerance.Brooks Transmitter/Converter Recalibr

ML20010J158
Person / Time
Site:	Hatch
Issue date:	09/17/1981
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010J153	List: 05000366/LER-1981-081, Forwards LER 81-081/03L-0 05000366/LER-1981-081-03, /03L-0:on 810830,2B21-R615 Reactor Water Level Recorder Found Reading Faulty.Caused by Brooks Transmitter/ Converter Out of Tolerance.Brooks Transmitter/Converter Recalibr
References
LER-81-081-03L, LER-81-81-3L, NUDOCS 8109290647
Download: ML20010J158 (2)

LER-1981-081, /03L-0:on 810830,2B21-R615 Reactor Water Level Recorder Found Reading Faulty.Caused by Brooks Transmitter/ Converter Out of Tolerance.Brooks Transmitter/Converter Recalibr

Event date:
Report date:
3661981081R03 - NRC Website

text

NRC F'.RM 366 U. S. NUCLE AR REGULATORY COMMISSION (7 77)

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8 60 61 DOCK ET NUVBER 68 69 EVENT DATE 14 75 REPORT DATE 80 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h 1012 I I Durinq normal operation at steady state oower of 2126 MWt. 2B21-R615.

I lo Ia l l Reactor Water Level Recorder, was found reading faulty. Tech SpecsSection I

lo I4 J l 3.3.6.4-1 requires two operable channels. The redundant GE 180 Indicator, I

loisi l 2B21-R610, was operating normally. This is a non-repetitive event. There I

l o 16 I l were no effects u_pon the public health or saf6ty.

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from a Brooks Transmitter, Converter (2B21-K751) on 2B21-NO36. Primary I

i, i2 1 Indicating Yarway. The Brooks Transmitter / Converter was found out of I

l i i.. i l tolerance. The Brooks Transmitter / Converter was recalibrated and function-1 I i 141 1 ally tested successfully.

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.LER No.:

50-366/1981-081 Licensee:. Georgia Power Company Facility:

Edwin I. Hatch Docket No.: 50-366

Narrative

Report for LER 50-366/1981-081.

During normal operation at a steady state power,of 2126 MWt, 2B21-R615, Reactor Vessel Heter Level Recorder, was found reading faulty. Tech Specs Section 3.3.6.4-1 requires two operable channels. The redundant GE 180 Indicator, 2B21-R610, was operating normally. This is a non-repetitive event. There wera no effects upon the public health _or safety.

Upon investigation the 2B21-R615, GEMAC' Level Recorder, receives its

- signal from a Brooks Transmitter / Converter (2B21-K751) on 2B21-N036,.

Primary Indicating"Yarway.~ The Brooks Transmitter / Converter was found out of tolerance. The Brooks Transmitter / Converter was recalibrated and functionally tested successfully.

A generic review revealed no inherent problemsi' A