05000259/LER-1980-065-03, /03L-0:on 800828,during Normal Operation,Wind Direction Indication Was Lost at Elevation 887 Min/Sec. Limiting Condition for Operation Was Entered.Caused by Noisy Potentiometer.Potentiometer Was Replaced

/03L-0:on 800828,during Normal Operation,Wind Direction Indication Was Lost at Elevation 887 Min/Sec. Limiting Condition for Operation Was Entered.Caused by Noisy Potentiometer.Potentiometer Was Replaced

ML19337A624
Person / Time
Site:	Browns Ferry
Issue date:	09/22/1980
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19337A623	List: 05000259/LER-1980-065, Forwards LER 80-065/03L-0 05000259/LER-1980-065-03, /03L-0:on 800828,during Normal Operation,Wind Direction Indication Was Lost at Elevation 887 Min/Sec. Limiting Condition for Operation Was Entered.Caused by Noisy Potentiometer.Potentiometer Was Replaced
References
LER-80-065-03L-01, LER-80-65-3L-1, NUDOCS 8009290347
Download: ML19337A624 (2)

LER-1980-065, /03L-0:on 800828,during Normal Operation,Wind Direction Indication Was Lost at Elevation 887 Min/Sec. Limiting Condition for Operation Was Entered.Caused by Noisy Potentiometer.Potentiometer Was Replaced

Event date:
Report date:
2591980065R03 - NRC Website

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["5TD I During normal operation, wind direction indication at elevation 887 m.s.1. was lest g l and the uven day LCO was entered (T.S. 3.2.1).

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Browns Ferry Nuclear Plant BF 15.2 1/10/79 LER SUPPLEMENTAL INFORMATION BFRO 259 / 8065 Technical Specification Involved 3.2.I Reported Under Technical Specification

6. 7.2.b (2)

Date of Occurrence 8/28/80 1445 I

Time of Occurrence Unit Identification and Description of Occurrence:

Wind direction at elevation 887 m.s.1. failed. The LCO to restore the inoperable channel to operating status within 7 days was exceeded on August ^2 1980 at 1445.

Conditions Trior to Occurrence:

U-1 0 97% We l

U-2 @ 93% We

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U;3 @ 100% We Action specified in the Technical Specification Surveillance Requirements met due to inoperable equipment. Describe.

None Apparent Cause of Occurrence:

Potentiometer was noisy.

Analysis of Occurrence:

There was no danger to the health or safety of the. public, no danger to the plant equipment and no resulting significant chain of events.

Corrective Action

deplaced noisy pctentiometer.

Failure Data:

None

• Retention :

eriod - Lifetime; Responsibility - A/.ministrative Supervisor

• Revision:

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