05000318/LER-1979-015-03, /03L-0 on 790519:containment Air Lock Outer Door Air Leakage Discovered to Be in Excess of Tech Spec Limits. Caused by Failed Door Gasket.New Gaskets Installed & Door Latch Rollers Adjusted

/03L-0 on 790519:containment Air Lock Outer Door Air Leakage Discovered to Be in Excess of Tech Spec Limits. Caused by Failed Door Gasket.New Gaskets Installed & Door Latch Rollers Adjusted

ML19269D602
Person / Time
Site:	Calvert Cliffs
Issue date:	05/25/1979
From:	Lagiewski J, Miernicki M BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19269D600	List: 05000318/LER-1979-015, Forwards LER 79-015/03L-0 05000318/LER-1979-015-03, /03L-0 on 790519:containment Air Lock Outer Door Air Leakage Discovered to Be in Excess of Tech Spec Limits. Caused by Failed Door Gasket.New Gaskets Installed & Door Latch Rollers Adjusted
References
LER-79-015-03L, LER-79-15-3L, NUDOCS 7906050265
Download: ML19269D602 (1)

LER-1979-015, /03L-0 on 790519:containment Air Lock Outer Door Air Leakage Discovered to Be in Excess of Tech Spec Limits. Caused by Failed Door Gasket.New Gaskets Installed & Door Latch Rollers Adjusted

Event date:
Report date:
3181979015R03 - NRC Website

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4 60 61 DOCKET NUMBER 68 69 EV ENT D ATE 74 75 REPCRT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h E IDurino the cerfomance of surveillance testino tha containmant air locle autor l

E l door air leakace was found to be in excess of that allcwed by Tech. Snec.

I E 13.6.1.3.b at 2145.

Corrective action was comoleted and a satisfactorv leak l

E l rate test was cerformed at 1530 on 5/20/79. The inner door remained closed I

E land sealed while the outer door was inocerabla. Throucholit this reriod tha i

E ltatal containment air leakace never exceeded the limit of T.S. 3.6.1.2.b.

I E ILER's 77-13 (U-1) and 77-19 (U-2) describe similar events.

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33 35 36 37 40 41 42 43 44 47 CAUSE CESCRIPTION AND CC ARECTIVE ACTICNS o lThe cause of the excessive leakace was a failed door casket. This is I

Iconsidered a nomal end of life failure. New door caskets were installed I

i-land dcor latch rollers adiusted. Seals were retested satisfactor/.

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NAVE OF PAEPARER PwCNE:

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