05000327/LER-1980-008-03, /03L-0:on 800303,cooling Tower Blowdown Effluent Line Flow Monitor O-FR-27-175 Was Declared Inoperable.Flow Monitor Consistently Indicated Higher Flowrate than Actually Existed.Cause Unknown.Different Instrument to Be Instal

/03L-0:on 800303,cooling Tower Blowdown Effluent Line Flow Monitor O-FR-27-175 Was Declared Inoperable.Flow Monitor Consistently Indicated Higher Flowrate than Actually Existed.Cause Unknown.Different Instrument to Be Installed

ML19309C381
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
ML19309C378	List: 05000327/LER-1980-008, Forwards LER 80-008/03L-0 05000327/LER-1980-008-03, /03L-0:on 800303,cooling Tower Blowdown Effluent Line Flow Monitor O-FR-27-175 Was Declared Inoperable.Flow Monitor Consistently Indicated Higher Flowrate than Actually Existed.Cause Unknown.Different Instrument to Be Instal
References
LER-80-008-03L-01, LER-80-8-3L-1, NUDOCS 8004080526
Download: ML19309C381 (2)

LER-1980-008, /03L-0:on 800303,cooling Tower Blowdown Effluent Line Flow Monitor O-FR-27-175 Was Declared Inoperable.Flow Monitor Consistently Indicated Higher Flowrate than Actually Existed.Cause Unknown.Different Instrument to Be Installed

Event date:
Report date:
3271980008R03 - NRC Website

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Tennessna Velley Authority Sequoyah Nuclear Plant LER SUPPLDIENTAL INFORMATION SQRG-50-327/8008 Technical Specification Involved 3.3.3.9 Reported Under Technical Specification 6.9.1.13.b i

Date of Occurrence:

3/3/80 Time of Occurrence:

1200 CST Unit l' Identification and Description of Occurrence:

Operations personnel noted during routine checks that the cooling tower blowdown effluent line flow monitor (0-FR-27-175) was inoperabic.

Conditions Prior to Occurrence:

Unit 1 initial fuc1 loading in progress.

Action specified in the Technical Specification Surveillance Requirement cet due to inoperable equipment.

Flow rates are being 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 30 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 health or safety.

Corrective Action

?

Replace instrument with different design.

Failure Data:

N/A e