ML19318C478

LER 80-083/03L-0:on 800529,pump Motor on O-RM-90-134 Burned Out Causing Common Circuit Breaker on O-RM-90-134/141 & 1-RM-90-112 to Trip.Cause Unknown.Motor Replaced

ML19318C478
Person / Time
Site:	Sequoyah
Issue date:	06/26/1980
From:	Romine P TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19318C451	List: ML19318C450 ML19318C478
References
LER-80-083-03L, LER-80-83-3L, NUDOCS 8007010515
Download: ML19318C478 (2)

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[TT 1 1 The pump motor on 0-RM-90-134 burned out causing the commen circuit I o 3 l breaker on 0-RM-90-134/141, and 1-RM-90-112 to trip. This resulted in I in 1 1 I the loss of power to the r.onitors and the monitors were declared 1-

,, ., i inoperable and Action 29 of LCO 3.3.3.9 was initiated for 0-FM-90-134/141.,

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[; rq g The cause of the pump motor ' burning out is unknown. The pump motor j

, i was replaced and 0-RM-90-134/141 was placed in service at 1600 U T on i IITI] I 5/29/80. , . _ _ _ _ _ _ , _ ___

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/r Scquoyah Nuclear Plant LER SUPPLEMENTAL INFORMATJnN SQRO-50-327/ 8083 Technical Specification involved LCO 3.3.3.9 Reported Under Technical Specification 6.9.1.13.b Date of Occurrence: 5/29/80 Time of Occurrence: 0950 CST Unit 1 Identification and Description of Occurrence:

The pump motor on 0-RM-90-134 burned out causing the conson circuit breaker on monitors 0-RM-90-134/141 and 1-RM-90-112 to cpen causing loss of the subject radiation monitors at approximately 1100 CST 5/29/80.

Conditions prior to Occurrence:

Unit i fuel loading complete and in Mode S.

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

Technical Specification LCO 3.3.3.9, Action 29 was initiated upon discovery.

1-RM-90-112 was returned to service at approximately 1200 CST 5/29/80.

Apparent Cause of Occurrence:

Cause of pump motor burning out is unknown.

Analysis of Occurrence:

There was no hazard to the public health or safety.

Corrective Action:

Pump motor was replaced and 0-RM-90-134 placed into operabic status at 1600 CST 5/29/80.

Failure Data N/A