05000260/LER-1980-021-03, /03L-0:on 800506,during Routine Shutdown, Particulate Channel 2-RR-90-249 Was Erratic & Declared Inoperable.Caused by Failure of Recorder Amplifier.Amplifier Replaced.Failure Attributed to Normal Aging

/03L-0:on 800506,during Routine Shutdown, Particulate Channel 2-RR-90-249 Was Erratic & Declared Inoperable.Caused by Failure of Recorder Amplifier.Amplifier Replaced.Failure Attributed to Normal Aging

ML18025A910
Person / Time
Site:	Browns Ferry
Issue date:	06/04/1980
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18025A909	List: 05000260/LER-1980-021, Forwards LER 80-021/03L-0 05000260/LER-1980-021-03, /03L-0:on 800506,during Routine Shutdown, Particulate Channel 2-RR-90-249 Was Erratic & Declared Inoperable.Caused by Failure of Recorder Amplifier.Amplifier Replaced.Failure Attributed to Normal Aging
References
LER-80-021-03L-02, LER-80-21-3L-2, NUDOCS 8006110156
Download: ML18025A910 (4)

LER-1980-021, /03L-0:on 800506,during Routine Shutdown, Particulate Channel 2-RR-90-249 Was Erratic & Declared Inoperable.Caused by Failure of Recorder Amplifier.Amplifier Replaced.Failure Attributed to Normal Aging

Event date:
Report date:
2601980021R03 - NRC Website

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CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS 27 2-RR-90-249 was erratic due to a failed recorder amplifier.

Amplifier was replaced,

'functionally tested and returned to service.

Leeds-Northrup, recorder amplifier, Hodel 101174.

No recurrence control required.

Failure attributed to normal aging.

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,=',, Tennessee Valley Author Browns Ferry Nuclear Plant f>>tan 8 F-5 V BF 15. 2 1/10/79 LER SUP PLEMENTAL INFORMATION BFRO-So-260 / 802l Technical Specification Involved 3.8.8.8 Reported Under Technical Specification 6.7.2.b(2)

Date of Occurrence 5/6/80 Time of Occurrence Unit Identification and Descri tiorr of Occurrence:

Particulate channel recorder 2-RR-90-249 was erratic and declared inoperable.

The recorder was out-of-service for 23 hours2.662037e-4 days <br />0.00639 hours <br />3.80291e-5 weeks <br />8.7515e-6 months <br />.

Conditions Prior to Occurrence:

Unit l '8 0%

Unit 2 8 98%

Unit 3 8 99%

Action specified in the Technical Specification 'Surveillance Requirements met I

p Chemical lab performed temporary monitoring.

Apparent Cause of Occurrence:

Recorder became erratic due to a failed recorder amplifier.

Analysis of Occurr ence:

There was no damage to plant equipment.

There was no activity release, no personnel exposure or injury and'no danger to the health or safety of the public.

Corrective Action

The recorder amplifier was replaced, to service.

functionally tested and recorder returned Failure Data:

~Retention:

. eriod - Lifetime; Responsibility - Administrative Supervisor

~Revision:

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