ML20107J025

Special Rept 84-05:penetration Fire Barrier Nonfunctional for Period in Excess of 7 Days.Caused by Biological Shield Blocks Removed from Reactor Bldg Equipment Hatch.Barriers Will Be Restored at Completion of Refueling Outage

ML20107J025
Person / Time
Site:	Sequoyah
Issue date:	10/26/1984
From:	Wallace P TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF ADMINISTRATION (ADM)
References
84-05, 84-5, NUDOCS 8411090351
Download: ML20107J025 (2)

Text

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-TENNESSEE VALLEY AUTHORITY Sequoyah Nuclear Plant Post Office Box 2000 .

Soddy Daisy, Tennessee 37379 October'26, 1984 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC' 20555 Gentlemen:

TENNESSEE VALLEY AUTHORITY - SEQUOYAH NUCLEAR PLANT UNIT 2 - DOCKET NO.

50-328 - FACILITY OPERATING LICENSE DPR SPECIAL REPORT 84-05 The enclosed special report provides informatfon concerning a penetration fire barrier being' nonfunctional for a period in excess of seven days. This report is reported in accordance with Sequoyah Unit 2 Technical Specifications 3.7.12 and 6.9.2.

Very truly yours, TENNESSEE VALLEY AUTHORITY

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P. R. Wallace Plant Manager Enclosure cc (Enclosure) :

James P. O'Reilly, Director U.S. Nuclear Regulatory Commission Suite 2900 101 Marietta Street, NW Atlanta, Georgia 30323 Records Center Institute of Nuclear Power Operations Suite 1500 1100 Circle 75 Parkway Atlanta, Georgia 30339

'NRC Inspector, NUC PR, Sequoyah 8411090351 841026 94 DR ADOCK 05000328 ,/

PDR 1983-TVA SOrH ANNIVERSARY An Equa' Opportunity Employer

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. -j . SPECIAL-REPORT 84-05 SEQUOYAH NUCLEAR PLANT UNIT 2 Event Description and Probabic Cause The biological s'hield blocks have been removed from unit 2 reactor.

building equipment hatch for the unit 2 refueling outage. This condition has been identified as' a breach of a fire barrier penetration and wil)

.remaia nonfunctional for the duration of the refueling outage.

Corrective Actions

' Proper procedures for breaching fire barrier penetrations are being followed.

which include verification of fire detector operability and establishment of -

an hourly fire watch as required by the actica statement of LCO 3.7.12.

The fire barrier will be restored at the completion of the refueling outage which is presently scheduled to be completed in late 1984.

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