05000366/LER-1981-043-03, /03L-0:on 810430,during Test & Calibr,Defective Water Flow Transmitter 2E51-N003 Found in Remote Shutdown Panel.Caused by Instrument Failure Due to Defective Spanning Assembly.Transmitter Replaced,Tested & Calibr Successfull

/03L-0:on 810430,during Test & Calibr,Defective Water Flow Transmitter 2E51-N003 Found in Remote Shutdown Panel.Caused by Instrument Failure Due to Defective Spanning Assembly.Transmitter Replaced,Tested & Calibr Successfully

ML20004C045
Person / Time
Site:	Hatch
Issue date:	05/21/1981
From:	Coggin C GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20004C040	List: 05000366/LER-1981-043, Forwards LER 81-043/03L-0 05000366/LER-1981-043-03, /03L-0:on 810430,during Test & Calibr,Defective Water Flow Transmitter 2E51-N003 Found in Remote Shutdown Panel.Caused by Instrument Failure Due to Defective Spanning Assembly.Transmitter Replaced,Tested & Calibr Successfull
References
LER-81-043-03L, LER-81-43-3L, NUDOCS 8106010462
Download: ML20004C045 (2)

LER-1981-043, /03L-0:on 810430,during Test & Calibr,Defective Water Flow Transmitter 2E51-N003 Found in Remote Shutdown Panel.Caused by Instrument Failure Due to Defective Spanning Assembly.Transmitter Replaced,Tested & Calibr Successfully

Event date:
Report date:
3661981043R03 - NRC Website

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8 EVENT DESCRIPTloN AND PROB ADLE CoNSEcuENCES h o 2 lWhile operating at 2422 MWt HNP-2-3818M, Remote Shutdown Panel RCIC Flowl IIndication Functional Test and Calibration was performed.

This proced-1 o 3 lure revealed a defective water flow transmitter 2E51-N003 in a remote 1

o 4 l shutdown panel.

Plant operation was not affected as a result of this 1

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The health and safety of the public was not affected.

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O 7 la nonrepetitiVe event.

A generic review revealed that the same type of I l transmitter is used on Unit 1.

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33 34 35 36 37 40 44 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 i o IThe cause of this event has been attributed to instrument failure due tol ITITl la defe ct i ve s pa nni ng switching assembly.

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lwas replaced with a Rosemount transmitter per DCR 81-140 and MR 2-81-2277.1 i 2 3 3 IThe transmitter was then successfully tested and calibrated and returnedi

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50-366/1981-M3 Licensec:

Georgia power Company i

Facility Name:

Edwin I. Ilatch Docket #:

50-366

Narrative

Report for LER 50-366/1981-043 On 4-30-81, while operating at 98% power, HNP 3 818h!, Remote Shutdown Panel RCIC Flow Indication Functional Test and Calib-

ration, was performed.

This procedure revealed that the remote shutdown panel water flow transmitter 2E51-N003 would not properly calibrate.

Because of a

defective spanning switching assembly the transmitter would not span to its full

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capable output.

This is a nonrepetitive event.

The cause of this event has been attributed to instrument failure due to a defective spanning switching assembly.

Since the

vendor, General Electric

Company, no longer makes this particular transmitter the defective GE transmitter was replaced with a Rosemount transmitter per DCR 81-140 and b!R 2-81-2277.

The transmitter was then tested and calibrated and returned to sevice.

Plant operation was not affected as a resrlt of this event.

The health and safety of the public was not affected.

A generic review revealed that this same type of GE transmitter is used on Unit 1 and that a chance of a similar failure for Unit 1 cxists.

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