05000327/LER-1980-009-03, /03L-0:on 800303,liquid Radwaste Effluent Line Flow Monitor 0-FT-77-42 Consistently Indicated Higher Discharge Flow Rate than Actually Observed.Cause Not Stated.Flow Monitor Modified & Returned to Svc

/03L-0:on 800303,liquid Radwaste Effluent Line Flow Monitor 0-FT-77-42 Consistently Indicated Higher Discharge Flow Rate than Actually Observed.Cause Not Stated.Flow Monitor Modified & Returned to Svc

ML19309C454
Person / Time
Site:	Sequoyah
Issue date:	04/02/1980
From:	Kinsey W TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19309C448	List: 05000327/LER-1980-009, Forwards LER 80-009/03L-0 05000327/LER-1980-009-03, /03L-0:on 800303,liquid Radwaste Effluent Line Flow Monitor 0-FT-77-42 Consistently Indicated Higher Discharge Flow Rate than Actually Observed.Cause Not Stated.Flow Monitor Modified & Returned to Svc
References
LER-80-009-03L-02, LER-80-9-3L-2, NUDOCS 8004080622
Download: ML19309C454 (2)

LER-1980-009, /03L-0:on 800303,liquid Radwaste Effluent Line Flow Monitor 0-FT-77-42 Consistently Indicated Higher Discharge Flow Rate than Actually Observed.Cause Not Stated.Flow Monitor Modified & Returned to Svc

Event date:
Report date:
3271980009R03 - NRC Website

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SQRo-50-327/8009 Technical Specification Involved 3.3.3.9 Reported Under Technical Specification 6.9.1.13.b Date of Occurrence: 3/3/60 Time of Occurrence:

1200 CST Unit 1 Identification and Description of Occurrence:

Engineering personnel noted during surveillance review incorrect flow readings. Liquid radwaste ef fluent line flow monitor 0-FI-77-42 was declared inoperable and codified.

Conditions Prior to Occurrence:

Unit 1 initial fuel loading in progress.

Action specified in the Technical Specification Surveillance Requirements cet due to inoperable equiprent.

Flow rates were estimated once per 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> during discharge of liquid wastes as required by action 27 of Table 3.3-12 under LCO 3.3.3.9.

Apparent Cause of Occurrence:

Inoperable flow rate monitor.

Analysis of Occurrence:

There was no hazard to the public heilth or safety.

Corrective Action

The flow instrument was modified and returned to service.

Failure Data:

N/A D

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