05000219/LER-1983-013, Forwards LER 83-013/01T-0.Detailed Event Analysis Encl

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Forwards LER 83-013/01T-0.Detailed Event Analysis Encl
ML20073H186
Person / Time
Site: Oyster Creek
Issue date: 04/08/1983
From: Fiedler P
GENERAL PUBLIC UTILITIES CORP.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20073H189 List:
References
NUDOCS 8304180515
Download: ML20073H186 (3)


LER-2083-013, Forwards LER 83-013/01T-0.Detailed Event Analysis Encl
Event date:
Report date:
2192083013R00 - NRC Website

text

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,. GPU Nuclear y fj Q g7 P.O. Box 388 Forked River, New Jersey 08731 609-693-6000 Writer's Direct Dial Number:

Regional Administrator Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406

Dear Sir:

Subj ect: Oyster Creek Nuclear Generating Station Do che t No. 50-219 Licensee Event Report Reportable Occurrence No. 50-219/8 3-13 /01T This letter forwards three copies of a Licensee Event Report (LER) to report Reportable Occurrence No. 50-219/83-13/01T in compliance with paragraph 6.9.2.a.6 of the Technical Specifications.

Very truly yours, Peter B. Fiedler Vice President and Director Oyster Creek PBF:jal Enclosure s cc: Dire c tor (40 copies)

Of fice of Inspection and Enforcement U.S. Nuclear Regulatory Commission Wa s hi ngto n , D.C. 20555 Director (3)

Of fice of Management Information and Program Control U.S. Nuclear Regulatory Commission Wa s hi ng to n , D.C. 20555 NRC Resident Inspector Oyster Creek Nuclear Generating Station Forked River, NJ 08731 830418051" 830408 PDR ADOCh J5000219 S PDR GPU Nuclear is a part of the General Pubhc Utilities System fl%',

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l OYSTER CREEK NUCLEAR GENERATING STATION Forked River, New Jersey 08731 i Licensee Event Report Reportable Occurrence No. 50-219-83-13/0lT

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1 Report Date April 8, 1983 1

Occurrence Date

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March 27, 1983 Identification of Occurrence Both doors of a Reactor Building personnel access airlock were opan

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simultaneously for a period of approximately 30 seconds. This constitutes a degradation of Secondary Containment Integrity as the conditions of Technical Specification 3.5.B.1 were not met.

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

Conditions Prior to Occurrence The plant was shutdown for refueling and maintenance. The Mode Switch was in I Refuel and the reactor coolant temperature was maintained at 70 F.

4 Description of Occurrence On Sunday, March 27, 1983, workers were bringing a CRD guide tube seal tool (approximately 12-15 feet long) f rom storage into the Reactor Building. The equipment was brought into the building through personnel airlock doors on the

, 23 foot elevation. Both doors remained open for approximately 30 seconds.

Apparent Cause of Occurrence The cause is being attributed to personnel error.

Analysis of Occurrence 4

Secondary Containment Integrity is required to minimize ground level release of airborne radioactive material and to provide for controlled, elevated release of the reactor building atmosphere under accident conditions. The f ability of Secondary Containment to perform its function with both personnel access airlock doors open was degraded. However, the duration of this occurrence was short and personnel were on hand to close the doors, if necessary.

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Licensee Event Report Page 2 Reportable Occurrence No. 50-219/83-13/OlT Corrective Action Once the equipment was inside the Reactor Building both doors were closed and the Control Room was notified. This incident has been reviewed with the personnel involved and appropriate disciplinary action is being taken.

Failure Data None e

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