05000321/LER-1980-084-03, /03L-0:on 800807,while Performing HNP-1-3167,RHR Svc Water Flow Indication for RHR Svc Water Loop B Observed Swinging Excessively.Caused by Faulty Amplifier.Amplifier Replaced & Transmitter Recalibr

/03L-0:on 800807,while Performing HNP-1-3167,RHR Svc Water Flow Indication for RHR Svc Water Loop B Observed Swinging Excessively.Caused by Faulty Amplifier.Amplifier Replaced & Transmitter Recalibr

ML19344E669
Person / Time
Site:	Hatch
Issue date:	08/26/1980
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19344E665	List: 05000321/LER-1980-084, Forwards LER 80-084/03L-0 05000321/LER-1980-084-03, /03L-0:on 800807,while Performing HNP-1-3167,RHR Svc Water Flow Indication for RHR Svc Water Loop B Observed Swinging Excessively.Caused by Faulty Amplifier.Amplifier Replaced & Transmitter Recalibr
References
LER-80-084-03L-01, LER-80-84-3L-1, NUDOCS 8009020446
Download: ML19344E669 (2)

LER-1980-084, /03L-0:on 800807,while Performing HNP-1-3167,RHR Svc Water Flow Indication for RHR Svc Water Loop B Observed Swinging Excessively.Caused by Faulty Amplifier.Amplifier Replaced & Transmitter Recalibr

Event date:
Report date:
3211980084R03 - NRC Website

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'T LICENSEE EVENT REPORT

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CONTROL BLOCK: l l

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60 61 DOCKET NUMBER 68 G3 EVENT DATE 74 7b REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h O 2 l With the unit at steady statn nneratinn whilo nerfnrminn HNP 1 3167 ; RHR I

10131 l Service Water Pump Operability. RHR service water flow indication for the l

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"B" RHR service water 1000 was observed to be swinnina excessively.

The i

O s l "B" _RHR service water loop was declared inop.

The "A" loop was operable i

1016 l l at the time. No sionificant occurrences took olace as a result of this i

O 7 I event.

There were no effects upon oublic health and safety due to this I

Thksisnotarepetitiveevent.

I 10181l event.

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CODE TYPE N O.

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3J 34 3b 36 31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h lilOIl The cause of this event was a faulty amplifier in IE11-N0078, RHR service I

li 11 I l water flow transmitter.

The amplifier was replaced and the transmitter I

li l 2 l l was recalibrated per HNP-1-5210.

HNP-1-3167 was run satisfactorily.

This I

yI type transmitter is not used on the "A" loop nor on Unit II.

The unit I

ml is now in full compliance and no further reporting is required.

I ST S

% POWER OTHER STATUS IS Y

DISCOVERY DESCRIPTION 32 W@ l 0l 9l 3l@l NA l

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i s A TIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE [Z_] @ [_Zj@l NA l

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8 9 10 11 44 45 80 PERSONNEL EXPOSURES l 010 l 0 ]@l Z l@ DESCRIPTION NUMBER TYPE l

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l i 7 PERSONNEL INJUF IES NUMBER

DESCRIPTION

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t R 80 7

8 9 11 12 LOSS OF OR DAMAG TO FACILITY [Z_j@l NA l

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8 9 10 NRC USE ONLY

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NAME OF PREPARER

NARRATIVE

REPORT Georgia Power Company Plant E. I. Natch Baxley, Georgia 31513 Reportable Occurrence Report No. 50-321/1980-084.

With' the unit at steady state operation, at 93% power, and performing HNP-1-3167, RHR Service ~llater Pump Operability, RHR service water flow indication for the "B" RHR service water loop,was observed to be swinging excessively.

The "B" RilR ser-vice water loop was declared inop.

The "A" loop was operable at the time.

The cause of this event was a faulty amplifier in 1E11-N007B, RHR service water flow transmitter.

The amplifier was replaced and the transmitter was recalibrated per llNP-1-5210, GEMAC 555 and 556 Calibration.

HNP.1-3167 was then run satis-factorily.

No significant occurrences took place as a result of this event.

This is not a repetitive event.

There were no effects upon public health and safety due to this event.

This type of transmitter is not used on the "A" locp of RHR service water on Unit I nor~ is it used in this application on Unit II.

The unit is now in full compliance with the requirements and no further reporting is required.

1