ML19262A157

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

ML19262A157
Person / Time
Site:	Oyster Creek
Issue date:	10/09/1979
From:	Hinrichs G JERSEY CENTRAL POWER & LIGHT CO.
To:
References
NUDOCS 7910260453
Download: ML19262A157 (2)

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Initial Telephone Date of Ret, art Date: October 9,1979 -

Occurrence: October 8. 1979 Initial Written Time of Report Date: October 9,1979 -

Occurrence: 1630 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20215e-4 months <br />  :

OYSTER CHEEK NUCLEAR GENERATING STATION FORKED RIVER. NEW JERSEY 08731 Reportable Occurrence Report No. 50-219/79/34-iP IDENTIFICATIOM Violation of the TechnIcel Sopef f fcations, nmgraph 3.5.B.1, OF OCCURRENCE: when secondary containment inteority was not aintained when the personnel access att lock doors wera found open.

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

COMDITIONS PRIOR X Steady State Power Routine Shutdown Hot Standby Operation TO OCCURRENCE:

Cold Shutdown Load Chances During Refuelin9 Shutdown Routine power Operation Routine Startuo Other (Specify)

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

Power: Reactor 1914 Wt Generator 664 MWe Flow: R* circulation 15.4 x 10 grm Feedwater 7.16 x 106 afhr.

Stack Gas: 3.2 x 10 uCI/sec.

DESCRIPTTOM On Monday, Octnber 8,1979, at approw imately 1630 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20215e-4 months <br /> an OF OCCURRENCE: operator discovered both personnel ar. cess af riock doors in the northeast corner of the Reactor Building (dnor a19) ware opea simul taneously. Since this was a hreach of secondary containment The operatne then inteprity, both doors were i M iately closed.

reportad the occurrence to the Group Shif t 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

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APPARENT CAUSE _ Desfgn Procedure OF OCCURRENCE: Manufacture Unusual Service Condftion Installation / Inc. Envirn==ntal Construction Cneponent Failure Operator _A Other (Specify1 Fersonnel error Personnel failure to recognize a violatico of the Technical Specifications.

ANALYSIS OF Secondary contairmt is requir d to e,Inimize grmmd level re1*ase OCCURRENCE: of airborne radioactivity materials, and to provide for controlled, elevated release of the building aWsober= onder ace.idert conditions.

The ability of secondary contaimt to perfnen itc functs.>n with both airlock doors open was degraded.

CORRECTIVE To be determined.

ACTION:

FAILURE DATA: Not applicable j , ,-

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' ' ' ,.' 'fI, Prepared by: # '[Gary N[>Hinrichs

[ > E726 Date: -

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d Boyce H. Grier 0: Directorate of Regulatory Oparations Region !

631 Park Avenue 19406

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King of Prussia, Pennsylvania m

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%s' Jersey Central Pnwer A light Cm pany FROM: Oyster Creek Nuclear Generatine Station Docket No. 50-?10 Forked River, New Jersey 08731 Reportable Occurrence F*oort No. 50/219/79/34-1P

SUBJECT:

The following is a preliminary report being subitted in compliance with the Tmhnical Specifications, paragrach 6.9.2.a.

Preliminary Approval:

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/-7'4mge(2-Larrol l , or. ,r /

.1. Date: October 9, 1979 Station Superinte e6t _

cc: Mr. Roger Boyd I I h rever/C wsij S