05000260/LER-1981-022-03, /03L-0:on 810512,during Performance of High Water Level in Scram,Scram Discharge Vol Level Switch Found Inoperable.Caused by Float Disconnected from Switch Arm. Robertshaw Model SL-305-EI-X Level Switch Replaced

/03L-0:on 810512,during Performance of High Water Level in Scram,Scram Discharge Vol Level Switch Found Inoperable.Caused by Float Disconnected from Switch Arm. Robertshaw Model SL-305-EI-X Level Switch Replaced

ML20004D689
Person / Time
Site:	Browns Ferry
Issue date:	06/04/1981
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20004D680	List: 05000260/LER-1981-022, Forwards LER 81-022/03L-0 05000260/LER-1981-022-03, /03L-0:on 810512,during Performance of High Water Level in Scram,Scram Discharge Vol Level Switch Found Inoperable.Caused by Float Disconnected from Switch Arm. Robertshaw Model SL-305-EI-X Level Switch Replaced
References
LER-81-022-03L-01, LER-81-22-3L-1, NUDOCS 8106090651
Download: ML20004D689 (2)

LER-1981-022, /03L-0:on 810512,during Performance of High Water Level in Scram,Scram Discharge Vol Level Switch Found Inoperable.Caused by Float Disconnected from Switch Arm. Robertshaw Model SL-305-EI-X Level Switch Replaced

Event date:
Report date:
2601981022R03 - NRC Website

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1. vrN r nu,utWTION AND PROGAHLE CONSEGULNCES h W g [_During performance of high water level in scram discharme instrument volume functionall g g i test (SI 4.1.A-8) for ecram recovery, scram discharge volume level switch 2-LS-85-45A_f g g l was found inoperable.

(T.S. Table 3.1.A). There was no danger to the health or i I [.,;,i gsafety of the public. Redundant witches were available and operable. Previous l E O 1 similar event: BFRO-50-259-80 051. I I (WU I __ l iv m i 14 0 e n I Ov 5 f E *.'

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o Tennessee Valley Auihority Fonn BF-17 Browns Feery Nucier r Plant BF 15.2 3/24/81 LER SUPPLEMENTAL INFORMATION BFRO 260_/_81022 Technical Specification involved Table 3.1. A Reported Under Technical Specification _ 6.7.2.b(2) Date of Occurrence 5/12/81 Time of Occurrence 0100 Unit 2 Identification and Description of Occurrence: During performance of SI 4.1.A-8 functional test, level switch LS-85-45A us found inoperable. Switch failed to reset after scram. Conditions Prior to Occurrence: Unit I refueling outage. Unit 2 at 0% Unit 3 at 98% Action spec:fied in the Technical Specification Surveillance Requirements met due to inoperable equipment. Describe. Ma': surveillance requirements cf technical specifications. Apparent Cause of Occurrence: Float on LS-85-45A disconnected from switch arm. Analysis of Occurrence: There was no danger to the health or safety of the puolic, no release of activity, no damage to the plant or equipment, and no resulting significant chain of events. trrective Action: Switch was replaced, functionally tested and returned to service. Failure Data: BFRO-50-259/ 80051. " Retention : Period - Lifetime; Respensibility - Document Control Supervisor -{

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