ML20247E729

Special Rept 89-002:on 890615,fire Damper Declared Inoperable.Caused by Damper Not Meeting Acceptance Criterion of Closing W/Air Flow in Sys.Design Change Initiated to Determine If Damper Will Be Modified or Replaced

ML20247E729
Person / Time
Site:	Farley
Issue date:	07/20/1989
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
89-002, 89-2, NUDOCS 8907260273
Download: ML20247E729 (2)

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' Altbama Power'CompIny -

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-t- 40 inverness C;ntIr Parkway l . c

ttst Office Box 1295. ,.

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i ' Birmingham, Alabama 35201' Telephone 205 868-5581 W. G. Hairston, Ill Senior Vice President Nuclear Operations AlabamaPower ri the southem electricsystem July 20.-1989-L h

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'Docketi No. 50-348

~U,-S.! Nuclear Regulatory Commission AT'IN: -- Document Control Desk Washington,'D. C. 20555' "p .

JJoseph M. Farley Nuclear Plant - Unit 1

,Special. Report No.89-002, Fire Damper Inoperable .

Due to Failure to Close With Air Flow.

Gentlemen:

-In accordance with the. requirements of Technical Specification 3.7.12, the enclosed Special Report.No.89-002, Unit 1, is submitted.

Respectfully submitted, Ib'

• W. G. Hairston, III WGH,III/ JAR:emb/NEL-0220 Enclosure cc:' Mr. S. D. Ebneter Mr. E. A.~ Reeves Mr. G..F. Maxwell r

8907260273'890720 PDR ADOCK 05000348 S PDC

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Enclosure Special Report No.'89-002, Unit 1 Fire Damper Inoperable Due to Failure to Close With Air Flow On 6-15-89,,during the performance of fire damper testing, damper 1-100-113-05 did'not meet the acceptance criterion of closing with air flow in the system.

This. damper is.in a ventilation system that has both winter and summer modes of-operation. The summer mode has a different air flow arrangement than the winter mode. Previous testing in the fall of 1987 had verified that this damper would close properly with the system in the winter mode of operation but, due to a. procedural inadequacy, the system was not tested in all modes'of operation. Recent testing has shown that the. damper will not close under the conditions imposed by the summer mode of operation.

. Design changa 89-1-5925 has been initiated to determine how this damper should be modified or replaced to ensure proper. operation under all system conditions.

This is expected to be' completed within the next nine months.

As noted in the special Report dated 7-5-89 (LER 89-003-00), five fire dampers-failed to close when tested. An investigation found that the affected systems. l had both winter and summer modes of operation. Previous testing had shown that the dampers would close when tested in the winter mode of operatio" .During j

subsequent testing, damper 1-100-113-05 failed to close. This damt testing program is being revised to assure that fire dampers in safety related structures will operate satisfactorily in all design operational conditions.

The revisions will consist of the following:

1. Drawings will be reviewed to determine which systems have more than one

-operational mode.

2. For those systems which have more than one operational mode, dampers will be retested under the maximum flow conditions for each mode of operation.

This retesting program will be performed on an expedited basis. Repairs or modifications will be accomplished as required.

Technical Specification 3.7.12 requires this damper to be returned to operable status within seven days or a Special Report must be submitted within the following 30 days. Therefore, this Special Report is being submitted. All Technical Specification action statement requirements for this fire damper are being met.

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