05000366/LER-1981-006-03, /03L-0:on 810123,standby Gas Treatment Sys Filter train,2T46-D001A,removed Less Halogenated Hydrocarbon Refrigerant Gas than Required by Tech Specs During Testing by Vendor.Caused by Defective Charcoal in Filter Bed

/03L-0:on 810123,standby Gas Treatment Sys Filter train,2T46-D001A,removed Less Halogenated Hydrocarbon Refrigerant Gas than Required by Tech Specs During Testing by Vendor.Caused by Defective Charcoal in Filter Bed

ML19341C272
Person / Time
Site:	Hatch
Issue date:	02/19/1981
From:	Coggin C GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19341C270	List: 05000366/LER-1981-006, Forwards LER 81-006/03L-0 05000366/LER-1981-006-03, /03L-0:on 810123,standby Gas Treatment Sys Filter train,2T46-D001A,removed Less Halogenated Hydrocarbon Refrigerant Gas than Required by Tech Specs During Testing by Vendor.Caused by Defective Charcoal in Filter Bed
References
LER-81-006-03L-01, LER-81-6-3L-1, NUDOCS 8103020582
Download: ML19341C272 (2)

LER-1981-006, /03L-0:on 810123,standby Gas Treatment Sys Filter train,2T46-D001A,removed Less Halogenated Hydrocarbon Refrigerant Gas than Required by Tech Specs During Testing by Vendor.Caused by Defective Charcoal in Filter Bed

Event date:
Report date:
3661981006R03 - NRC Website

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R E POR T. D AT E 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h iWhile Unit 2 was in cold shutdown due to a refueling outage, HNP-2-3975,1 O 2 l Testing of SBGT-Filter Train by Vendor, war performed on SBGT filter l

, 3 l train 2T46-0001A.

The filter train would not remove greater than or I

0 4 l'5Tsl I equa'l to 99% of a halogenated hydrocarbon refrigerant gas as required 1

Iby Tech specs'4.6.6.1.1.f.

Following this failure SBGT train A was l

O s l0 l 7 l l decl ared inoperable.

This is not a repetitive event; there were no l

lO181 i ef fects upon public health or safety.

Redundant system was available.

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33 34 25 34 37 40 el 42 43 44 47 CAuSE DESCRIPTION AND CORRECTIVE ACTIONS h 11101 I The f ailure of SBGT filter train 2T46-0.001 A was due to defective char-I i

LLLU l coal in filter bed.

The filter bed was atmptied of defective charcoal I

l and refilled with new charcoal.

The filter train was then retested I

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I wh-ich t-ime it passed and was declared operable.

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,e-O LER f:

50-366/1981-006 Licensec:

Georgia Power Company Facility Name:

Edwin I. Hatch Docket f:

50-366

Narrative

Report for LER 50-366/1981-006 On 1-23-81, with the unit in cold shutdown due to a r fe ueling outage, HNP-2-3975, Testing of SBGT Filter Train s by Vendor, was performed on SBGT filter train 2T46-D001A.

Upon receiving test results it was discovered that the filter train would not remove greater than or equal to 99% of a halogenated hydro-carbon refrigerant test gas as required by Tech Specs 4.6.6.1.1.f.. As a result of this test failure SBGT filter train 2T46-D001A was declared inoperable.

In order to alleviate the probicm the defective charcoal was O

replaced with new charcoal, and the system was rotested.

The new test resulcs indicated that the system was operable ac-cording to HNP-2 '975 and Tech Specs 4.6.6.1.1.f.

It should be noted that SBLT 2T46-D001B was tested

also, and test results were satisfactorv.

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