ML19309E629

LER 80-026/03L-0:on 800416,during Mode 6 Operations,Ercw Effluent Line Monitors Declared Inoperable & Maint Performed.Caused by Dirt in Flow Switch.Switch Cleaned & Monitor Returned to Svc

ML19309E629
Person / Time
Site:	Sequoyah
Issue date:	04/16/1980
From:	Record D TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19309E624	List: ML19309E622 ML19309E629
References
LER-80-026-03L, LER-80-26-3L, NUDOCS 8004220722
Download: ML19309E629 (2)

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Tennessec . Valley Authority Sequoyah Nuclear Plant LER SUPPLDIENTAI. INFORMATION SQRO-50-327/ 8026 Technical Specification nvolved 3.3.3.9 Report Under Technical Specification 6.9.1.13.b Date of Occurrence: 3/17/80 Time of Occurrence: 1130 CST Unit 1 Identification and Description of Occurrence:

ERCU Ef fluent Line Monitors (0-RE-90-134,141) were declared inoperable while maintenance was perforced on the flow switch which provides the low flow alarm.

Conditi,on,s Prior to Occurrence:

Unit 1 in Mode 6 with all fuel loaded.

Apparent Cause of Occurrence:

The flow switch providing the low flow alarn was dirty and would not perform its function until it was cicaned.

Analysis of Occurrence:

, There was no hazard to the public health or safety.

Corrective Action:

The flow switches were cleaned and a PMI periedically checks them.

Failure Dara:

N/A O

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