05000327/LER-1981-085-01, /01T-0:on 810719,outer Door to Lower Containment Personnel Access Lock Opened While Inner Door Was Ajar. Caused by Excessive Slack in Door Operating Linkage Which Allowed Inner Door to Bounce Open

/01T-0:on 810719,outer Door to Lower Containment Personnel Access Lock Opened While Inner Door Was Ajar. Caused by Excessive Slack in Door Operating Linkage Which Allowed Inner Door to Bounce Open

ML20009H659
Person / Time
Site:	Sequoyah
Issue date:	07/31/1981
From:	Harding M, Kirk G TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009H655	List: 05000327/LER-1981-085, Forwards LER 81-085/01T-0 05000327/LER-1981-085-01, /01T-0:on 810719,outer Door to Lower Containment Personnel Access Lock Opened While Inner Door Was Ajar. Caused by Excessive Slack in Door Operating Linkage Which Allowed Inner Door to Bounce Open
References
LER-81-085-01T, LER-81-85-1T, NUDOCS 8108100331
Download: ML20009H659 (1)

LER-1981-085, /01T-0:on 810719,outer Door to Lower Containment Personnel Access Lock Opened While Inner Door Was Ajar. Caused by Excessive Slack in Door Operating Linkage Which Allowed Inner Door to Bounce Open

Event date:
Report date:
3271981085R01 - NRC Website

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EVEfJT DESCR PTION AND PRODAULE C NSEO ENCES OI1ll_ Unit I in Mode 3 with RCS temperature and pressure at 537 F and 2235 psig. During oTil I nerformance of a linkage interlock test on the lower containment personnel access.

T8 e latch closed blocking inner door was allowed to slam and bounce back.

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The outer doc *r was then opened violating containment integrity per l

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Thorn uns no effect upon public health or safety.

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(Reference: SORO-50-327/80113 and 80116).

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El The linkage was adjusted to prevent the door from bouncing. An instruction has been El prepared and is being implemented to periodically check and adjust the slack in the.

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