ML19340D481

LER 80-097/03L-0:on 801121,containment Airlock Doors Failed Seal Leakage Surveillance Test.Caused by Wood Sliver Adhering to Door Sealing Face & Inner Door O-rings Improperly Mating.Seals Greased.Wood Sliver Removed

ML19340D481
Person / Time
Site:	Beaver Valley
Issue date:	12/18/1980
From:	Lacey W DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19340D478	List: ML19340D477 ML19340D481 ML19340D482 ML19340D484 ML19340D485 ML19340D487
References
LER-80-097-03L, LER-80-97-3L, NUDOCS 8012300667
Download: ML19340D481 (2)

Text

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U.S.NUCLEA21 REGULATG2Y COMMISSION N AC FORM 364 T1 771 g '

t.!CENSEE EVENT REPORT CONTROL OLOciC: l l' l l l l l (PLEAsa PRINT OR TYPE ALL REQUIREO INFORMATION) i e@

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60 Se nOCEET Nyuggm 68 60 EVENT OATE I4  ;% REPQAT QATE 80 EVENT CESCRIPTION AND PROSASLE CONSEOutNCES h i lol2l l on 11/21/80, both doors of the containment air lock failed their seal leakace for the outer door leakace, I lotal I surveillance test. After locating the apparent catise loiilI the test was repeated. At 1215 hours0.0141 days <br />0.338 hours <br />0.00201 weeks <br />4.623075e-4 months <br /> with the inner door seal still leaking by, thel lo I s l I airlock was declared inoperabic in. accordance with Technical Specification 3.6.1.3. l lo !s l I The health and safety of the public was not icopardized as the containment was under[

the incident. I roTT1 o I a vacuum and the reactor was suberitical throughout i

l lotall 80 7 8 9 COMP, v4Lyg SYSTEM CAUSE CAUSE SueCODE CCMPONENT CCDE SUSCODE SUSCODE CODE CODE 10691

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( SEQUENTIAL OCCup AENCE REPORT t

REPORT No. C00E TYPE No.

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33 4 37 CAUSE CESCR:PTION ANO CORRECTIVE ACTIONS h Ii i o l l A siiver of wood was found adhering to the flat sealing face of the outer door and l I

l f rj l was removed. The inner door 0-rings were found to be mating improperly and were Following this, at 2130 hours0.0247 days <br />0.592 hours <br />0.00352 weeks <br />8.10465e-4 months <br /> on 11/21/80,3 r,#21I replaced. Both door seals were greased.

l l 131 l the air lock test-was successfully completed.

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• OTHER STATUS DISCO RY OeSCOVERY OESCRIPTIO*e 1 %PCWER IiisjiCl@ l0l0l0{@l ' n N/A l lBl@l Performing surveillance test l

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Attachment To LER 80-97/03L Beaver Valley Power Station Duquesne Light Company Docket No.51-334 No further information is available or needed to satisfy the reporting requirement.

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