View source for 05000334/LER-1981-078-03, /03L-0:on 810823,during Testing of Containment Airlock Door Seals,Leakage Was Detected.Caused by Design Fault in Inner Door Seals.Sealing Surfaces Wiped Down & Regreased.Design Change Initiated

{{Adams
| number = ML20010J492
| issue date = 09/23/1981
| title = /03L-0:on 810823,during Testing of Containment Airlock Door Seals,Leakage Was Detected.Caused by Design Fault in Inner Door Seals.Sealing Surfaces Wiped Down & Regreased.Design Change Initiated
| author name = Lacey W
| author affiliation = DUQUESNE LIGHT CO.
| addressee name = 
| addressee affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION I)
| docket = 05000334
| license number = 
| contact person = 
| document report number = LER-81-078-03L, LER-81-78-3L, NUDOCS 8110050157
| package number = ML20010J483
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 2
}}
{{LER
| Title = /03L-0:on 810823,during Testing of Containment Airlock Door Seals,Leakage Was Detected.Caused by Design Fault in Inner Door Seals.Sealing Surfaces Wiped Down & Regreased.Design Change Initiated
| Plant = 
| Reporting criterion = 
| Power level = 
| Mode = 
| Docket = 05000334
| LER year = 1981
| LER number = 78
| LER revision = 3
| Event date = 
| Report date = 
| ENS = 
| abstract = 
}}

=text=
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I 17 771 LICENSEE EVENT REPORT
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8 60 61 OOCKET NUYBER 64 63 EVENT OATE 14 75 REPORT OA'E 30
,c EVENT DESCRIPTION AND PROB ABLE CONSEGUENCES h I
O 2 l On 8/23/81 at 0145 hours with reactor nount n r 44'/. n enrun411,ncn ence conducted to test for leakage thru the containment airlock door seals I
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detected leakage past the inner door seals. The airlock was declared l
[olS; j inoperable. Power operations continued as perraitted by the action statement I
1 l0 l6 l l of Technical Specification 3.6.1.3.
There were no safety implications as I
I lo l7l l the outer airlock door tested safisfactorilv.
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8 9 COMP-VA LV E SYSTE'1

==CAUSE==
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33 34 as 3G 31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS li l0 l l The airlock inner door sealing surfaces and 0-rines were wined down. recrear gij I
l2 Iil i and the surveillance test was successfuilv comnieted at o505 honrc nn ti s yi 1 8/23/81. Because of the frecuent nroblems with the afriock. a design change I
f,, y 3 l that will address the seal problems has been initiated and proposed for l
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PDR ADOCK 05000334 'E" S
PDR

Attachment To LER 81-78/03L Bravar Valley Power Station Duquesne Light Company Docket No. 50-334 Future information concerning the status of the design change will either be reported in a revision to this LER or in a subsequent LER.
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