05000338/LER-1981-013-03, /03L-0:on 810223,auxiliary Bldg Stairwell Fire Door A74-5 at Elevation 274 Would Not Close & Latch.Caused by Misalignment Between Door & Frame Due to Loose Door Hinges.Hinges Tack Welded to Door Jamb

/03L-0:on 810223,auxiliary Bldg Stairwell Fire Door A74-5 at Elevation 274 Would Not Close & Latch.Caused by Misalignment Between Door & Frame Due to Loose Door Hinges.Hinges Tack Welded to Door Jamb

ML19347D615
Person / Time
Site:	North Anna
Issue date:	03/18/1981
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19347D611	List: 05000338/LER-1981-013, Forwards LER 81-013/03L-0 05000338/LER-1981-013-03, /03L-0:on 810223,auxiliary Bldg Stairwell Fire Door A74-5 at Elevation 274 Would Not Close & Latch.Caused by Misalignment Between Door & Frame Due to Loose Door Hinges.Hinges Tack Welded to Door Jamb
References
LER-81-013-03L-02, LER-81-13-3L-2, NUDOCS 8103260852
Download: ML19347D615 (2)

LER-1981-013, /03L-0:on 810223,auxiliary Bldg Stairwell Fire Door A74-5 at Elevation 274 Would Not Close & Latch.Caused by Misalignment Between Door & Frame Due to Loose Door Hinges.Hinges Tack Welded to Door Jamb

Event date:
Report date:
3381981013R03 - NRC Website

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U.S. NUCLEAR REGULATORY COMMISSION O

LICENSEE EVENT REPORT t

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DOCKET NUMBER EVENT DATE REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES (10)

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On February 23, 1981, during Mode 5 operations, auxiliary building stairwell

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fire door A74-5 at elevation 274 was found to be non-functional due to an

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inability to fully close and latch. Because a fire watch was established with-/

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in 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and redundant fire protection systems remained operable, the health /

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and safety of the general public were not affected. This event is reportable /

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pursuant to T.S. 6.9.1.9.b.

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SYSTEM

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- Due to heavy traffic, the door hinges worked loose causing a misalignment

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between the door and frame. To prevent the door from working itself loose and /

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pulling away from the frame, each hinge was tack welded to the door jamb. The /

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fire door was then functionally inspected and determined acceptable.

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FACILITY METHOD OF STATUS

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OBSERVATION

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PERSONNEL INJURIES

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NAME OF PREPARER

- W.

R. CARTWRIGHT PHONE (703) 894-5151 810326o g _

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l Virginia Electric and Power Company North Anna Power Station, Unit #1 Attachment: Page 1 of I Docket No. 50-338 i

Report No. LER 81-013/03L-0

Description of Event

On February 23, 1981, during Mode 5 operations, fire door A74-5 was discovered non-functional in accordance with Technical Specification 3.7.15.

The door, which provides access to the auxiliary building stairwell at elevatica 274, would not fully close to the latched position. This event is reportable pursuant to T.S. 6.9.1.9.b.

Probable Consequences of Occurrence The functional integrity of the penetration fire barriers ensures that fires will be confined or adequately retarded from spreading to adjacent portions of the facility. Because a fire watch was posted at the door within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> as required by T.S. 3.7.15 and all other fire protection systems remained operable, the health and safety of the general public were not affected.

Cause of Event

The fire door failed to fully close because heavy use caused the door

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hinges to work loose resulting in a misalignment between the door and the door frame.

Immediate Corrective Action

The hinges for the door were tack welded to the door jamb in order to prevent the hinges from working loose and pulling away from the frame. The fire door was then visually inspected and determined functional.

Scheduled Corrective Action There is no scheduled corrective action required at this time.

Actions Taken to Prevent Recurrence No further actions required.

Generic Implications None.

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