05000259/LER-1980-047-03, /03L-0:on 800604,during Power Operation,While Testing Drywell Air Sampling Sys,Vacuum Pump Associated W/ RM-1-90-256 Failed.Caused by Normal Wear.Pump Was Replaced

/03L-0:on 800604,during Power Operation,While Testing Drywell Air Sampling Sys,Vacuum Pump Associated W/ RM-1-90-256 Failed.Caused by Normal Wear.Pump Was Replaced

ML19320A955
Person / Time
Site:	Browns Ferry
Issue date:	07/01/1980
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19320A950	List: 05000259/LER-1980-047, Forwards LER 80-047/03L-0 05000259/LER-1980-047-03, /03L-0:on 800604,during Power Operation,While Testing Drywell Air Sampling Sys,Vacuum Pump Associated W/ RM-1-90-256 Failed.Caused by Normal Wear.Pump Was Replaced
References
LER-80-047-03L, LER-80-47-3L, NUDOCS 8007080333
Download: ML19320A955 (2)

LER-1980-047, /03L-0:on 800604,during Power Operation,While Testing Drywell Air Sampling Sys,Vacuum Pump Associated W/ RM-1-90-256 Failed.Caused by Normal Wear.Pump Was Replaced

Event date:
Report date:
2591980047R03 - NRC Website

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8 t,0 61 DOC A ET NUMSE R 68 89 EVENT O ATE 74 75 RE*oRTDATE 60 EVENT DESCntPTION AND PROBABLE CONSEQUENCES h o 2 i With Unit 1 at 81 percent steady state power SI 4.2.E.2 was being performed on the I

g i drywell air sampling system when the vacuum pump associated with RM-1-90-256 was l

l found to be pulling an inadequate vacuum. The Chem Lab was notified to obtain l

o 4 F5T 1 I grab samples. There was no danger to the health or safety of the public, and no l significant re'sulting chain of events. A previous similar occurrence was reported l

o s ITTTl I on LER BFRO-50-259-79036. See Tech Spec 3.6.C.2.

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CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS h g l The pump failed to perform adequately due to normal wear from operation.

It was l replaced.

Schwitzer, Series 325. No additional recurrence control is planned.

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i LER SUPPLEMENTAL INFORMATION r

3.6.c.2 B FRO 259 j 8047 Technical Specification Involved Reported Under Technical Specification

6. 7.2.b (2)

Date of Occurrence 6/4/80 Time of Occurrence 0801 Unit 1

l I_dentification and Description of Occurrence:

While perfoming SI 4.2.E.2 it was found that vacuum pump on RM-1:-90-256 on continuous air monitoring system to drywell was pulling inadequate vacuum.

i Conditions " Prior to Occurrence:

J Unit 1 - 81% steady state power

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Unit 2 - 962 steady state power Uiiit 3 - 100% steady, state power Actiin spacified 'n the Technical Specification Surveillance Requirements m.

due to inopg.gle _ equipment.

Des crib e._

Chem Lab was asked to obtain grab samples Apparent Cause of Occurrence:

Normal wear on pump from operation.

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i Analysis of Occurrence:

1 Therewasnodange[tohealthorsafetyofthepublic,noreleaseofactivity, i

no damage to plant or equipment, and no resulting significant chain of events.

Corrective Action

Pump was replaced.

F.tilure Data:

LER BFRO-50-259-79036

• Retention :

criod - Lifetime; Responsibility - Ad:ninistrative Supervism

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• Revision:

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