ML19259D185

RO 50-219/79/34-1P:on 791008,both Personnel Access Airlock Doors in Northeast Corner of Reactor Bldg Were Open Simultaneously.Caused by Contractors Using Passage. Corrective Action to Be Determined

ML19259D185
Person / Time
Site:	Oyster Creek
Issue date:	10/09/1979
From:	Hinrichs G JERSEY CENTRAL POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19259D183	List: ML19259D182 ML19259D185
References
NUDOCS 7910170323
Download: ML19259D185 (2)

Text

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Initial Telephone Date of Report Date: October 9, 1979 -

Occurrence: October 8, 1979 Initial Written Time of Report Date. _vetober 9, 1979 Occurrence: 1630 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20215e-4 months <br /> _

0YSTER CREEK NUCLEAR GENERATING STATION FORKED, RIVER, NEW JERSEY 08731

. _ Reportable Occurrence Report No. 50-219/79/34-lP IDENTIFICATIUN Violation of the Technical Specifications, paragraph 3.5.B.1, 0F OCCURRENCE: when secondary containment integrity was not maintained when the personnel access airlock doors were found open.

This event is considered to be a reportable occurrence as defined in the Technical Specifications, paragraph 6.9.2.a.6.

CONDITIONS PRIOR X Steady State Power Routine Shutdown TO OCCURRENCE: Hot Stardby Operation Cold Shutdown Load Changes During Refueling Shutdown Routine Power Operation Routine Startup Other (Specify)

Operation The major plant parameters at the time of occurrence were:

Power: Reactor 1914 MWt Generator 664 MWe 4

Flow: Recirculatica 15.4 x 10 gpm Feedwater 7.16 x 106 #/hr.

Stack Gas: 3.2 x 104 pCi/sec.

DESCRIPTION On Monday, October 8, 1979, at approximately 1630 hcurs, an 0F OCCURRENCE: operator discovered both personnel access airlock doors in the northeast corner of the Reactor Building (door #19) were open simultaneously. Since this was a breach of secondary containment integrity, both doors were immediately closed. The operator then reported the occurrence to the Group Shift Supervisor. The apparent cause of this condition was caused by contractors using this passage.

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Reportable Occurrence ,

Page 2 Report No. 50-219/79/34-lP -

APPARENT CAUSE Design Procedure OF OCCURRENCE: Manufacture ~~ Unusual Service Condition Installation / Inc. Environmental Construction Component Failure

. Operator X Other (Specify)

Personnel error Personnel failure to recogniza a violation of the Technical Specifications.

ANALYSIS OF Secondary containment is required to minimize ground level release OCCURRENCE: of airborne radioactivity materials, and to provide for controlled, elevated release of the building atmosphere under accident conditions.

The ability of secondary containment to perform its function with both airlock doors open was degraded.

CORRECTIVE To be determined.

ACTION:

FAILURE DATA: Not applicable

</ e l/ ,, t' /_ l Prepared by: .

'd%/d: $.~'E.M' Date: /YN'7#

Gary /Hinrichs jji9 1 J 4

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