ML19289D790

LER 79-013/03L-0 on 790214:during Normal Operation,Fire Door S71-7 Between Auxiliary Bldg & Health Physics Found non- Functional.Caused by Bent Phaser on Left Door.Phaser Taped Out of Way & New Phaser Installed

ML19289D790
Person / Time
Site:	North Anna
Issue date:	03/09/1979
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19289D784	List: ML19289D783 ML19289D787 ML19289D789 ML19289D790 ML19289D791 ML19289D792
References
LER-79-013-03L, LER-79-13-3L, NUDOCS 7903140414
Download: ML19289D790 (2)

Text

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lol'l $ZRCE LLBI61 t,8 l1 DATE 74 75 SJ 7 8 60 DOCKET NUMBER EVENT DESCRIPTION AND PROO ABLE CONSEQUENCES O'o o 2 lDuring normal power operations, fire door S71-7, between the Auxiliary Building and goi3; gHealth Physics was found to be non-functienal. The phaser on.the left door, which l o , l assures correct over-lapping closure between the two twin doors, was bent causing l lo i si l the door to stay open. This event did not jeonardize the health and safety of the i o o [ general public. Reportable pursuant to T.S. 6.9.1.9.b. l I

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[g CAUSE DESCRIPTION AND CORRECTIVE ACTIONS i o l Phaser on fire door was bent during use. Phaser taped out of way and new phaser l liliil installed within the hour. I I

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Virginia Electric and Power Company North Anna Power Station, Unit #1

Attachment:

Page 1 of 1 Docket No.: 50-338 Report No.: LER/R0 79-013/03L-0 Description Of Event On February 14. 1979, during normal power operations, twin fire door S71-7, was discovered not functional in accordance with Teconical Specifica-tion 3.7.15. The door was functional in that it was able to close the opening between the Health Physics corridor and the Auxiliary Building on the 274 foot elevation. The phaser on the left door, which assures correct overlapping closure between the two twin doors was bent causing the left door to stay open.

Probable Consequences of Event The penetration fire barriers required by T.S. 3/4.7.15 are provided to ensure that fires will be confined or adequately retarded from spreading to adjacent portions of the facility. In this event, the consequences were very limited. The damaged phaser was replaced within one hour, thereby meeting the T.S. 3.7.15 action statement. This event did not jeopardize the health and safety of the general public.

Cause The phaser had been caught by the door causing it to be bent downward.

This then caused the door to be caught and held open.

Immediate Corrective Action The damaged phaser was taped up and out of the way so the door could close correctly. A new phaser was obtained and installed in place of the damaged one within one hour.

Scheduled Corrective Action None required.

Action Taken To Prevent Recurrence None required.

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