05000259/LER-1981-020-03, /03L-0:on 810506,during Diesel Generator Redundant Start Test (EMI-3),D Engine Left Bank Air Start Motors Would Not Develop Min Rotational Speed.Caused by Broken Vane.Air Starting Motors Replaced

/03L-0:on 810506,during Diesel Generator Redundant Start Test (EMI-3),D Engine Left Bank Air Start Motors Would Not Develop Min Rotational Speed.Caused by Broken Vane.Air Starting Motors Replaced

ML20004C638
Person / Time
Site:	Browns Ferry
Issue date:	05/29/1981
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20004C634	List: 05000259/LER-1981-020, Forwards LER 81-020/03L-0 05000259/LER-1981-020-03, /03L-0:on 810506,during Diesel Generator Redundant Start Test (EMI-3),D Engine Left Bank Air Start Motors Would Not Develop Min Rotational Speed.Caused by Broken Vane.Air Starting Motors Replaced
References
LER-81-020-03L, LER-81-20-3L, NUDOCS 8106040365
Download: ML20004C638 (2)

LER-1981-020, /03L-0:on 810506,during Diesel Generator Redundant Start Test (EMI-3),D Engine Left Bank Air Start Motors Would Not Develop Min Rotational Speed.Caused by Broken Vane.Air Starting Motors Replaced

Event date:
Report date:
2591981020R03 - NRC Website

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O rennewe Valley Authority Form IlF-17 Mrowns Ferry Nuclear Plant BF 15.2 3/24/M1 LER SUPPLEMENTAL INFORMATION BFRO 259 / 81020 Technical Specification involved

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Reported Under Technical Specification _

6.7.2.b(2)

Date of Occurrenc 5/6/81 Time of Occurrence 0115 Unit l' & 2 D/G I41entification and Description of.Occurrencc:

"C" diesel generator air start motors would not develop minimum rpm te p.iss test criteria.

Cono2 ion. Prior to occurrence:

1: nit i refueling outage.

L' nit 2 at 98.2%.

Unit 3 at 99%.

Action specified in the Technical Specification Surveillance Requircaents met due to inoperable equipment. Describe.

Nt requirements of T.S. 3.9.B.2.

tg.arent Cause of Occurrence:

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necken vane due to normal wear.

Analvg of Cccurrence:

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

f gugect ve Action:

Feplaced air start motors.

Recurrence control: Program to monitor performance of motors and evaluate present preventive maintenance will be established.

Fadure Data-BIP5 50-259/74004, 74013W, 74021W, and 75008W.

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" Retention : Period Lifetime; Responsibility - Document Control Supervisor

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