05000296/LER-1980-037-03, /03L-0:on 800909,during Normal Operation,While Surveillance Testing,Hydrogen Analyzing Sys H2M-76-39 Would Not Calibr to Specs.Caused by Instrument Failure.Hydrogen Analyzing Sys Will Be Changed to Newly Designed Sys

/03L-0:on 800909,during Normal Operation,While Surveillance Testing,Hydrogen Analyzing Sys H2M-76-39 Would Not Calibr to Specs.Caused by Instrument Failure.Hydrogen Analyzing Sys Will Be Changed to Newly Designed Sys

ML19338E927
Person / Time
Site:	Browns Ferry
Issue date:	09/30/1980
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19338E921	List: 05000296/LER-1980-037, Forwards LER 80-037/03L-0 05000296/LER-1980-037-03, /03L-0:on 800909,during Normal Operation,While Surveillance Testing,Hydrogen Analyzing Sys H2M-76-39 Would Not Calibr to Specs.Caused by Instrument Failure.Hydrogen Analyzing Sys Will Be Changed to Newly Designed Sys
References
LER-80-037-03L-02, LER-80-37-3L-2, NUDOCS 8010060314
Download: ML19338E927 (2)

LER-1980-037, /03L-0:on 800909,during Normal Operation,While Surveillance Testing,Hydrogen Analyzing Sys H2M-76-39 Would Not Calibr to Specs.Caused by Instrument Failure.Hydrogen Analyzing Sys Will Be Changed to Newly Designed Sys

Event date:
Report date:
2961980037R03 - NRC Website

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8 60 61 ooc 4ET NUW9ER de 09 EVEseT o ATE 74 75 REPORT DATE 80 EVENT DESCRIPTION ANO PRO 8A8LE CONSEQUENCES h lo l2l l During normal operation, while performing SI 4.7.H, H.,M-76-39 would not calibrate.

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Redundant H.,E-76-37 was operable. There was no hazard to the j

f5 TT1 I public health or safety. Previous event: 50-260/8036.

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Tennessee Valley Authority Form BF-17 Browns Ferry Nuclear Plant BF 15.2 1/10/79 LER SUPPLEMENTAL INFORMATION BFRO-50 296 / 8037 Technical Specification Involved 3.7.H Reported Under Technical Specification 6.7.2.b (2)

Date of Occurrence 9/9/80 Time of Occurrence 1300 Unit 3

Identification and Description'of Occurrence:

H M-76-39 would not calibrate to specification.

2 Conditions ~ Prior to Occurrence:

U-l at 96% We U-2 at 0% We

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U-3 at 76% We Action specified in the Technical Specification Surveillance Requirements met due to inoperable equipir.ent. Describe.

None Apparent Cause of Occurrence:

H E-76-39 hydrogen sensor failed.

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l Analysis of Occurrence:

There was no damage to the plant equipment. There was no activity release, no personnel exposure or injury and no danger to t'he health and safety of the public.

Corrective Action

The hydrogen analyzing system will be changed to a new designed system at the next refueling outage.

Failure Data:

j 260/8036, 259/7930, 260/7923, 296/796, 259/7815 and 260/7821.

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• Retention :

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