05000272/LER-1982-072, Forwards LER 82-072/03L-0.Detailed Event Analysis Encl

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Forwards LER 82-072/03L-0.Detailed Event Analysis Encl
ML20065S885
Person / Time
Site: Salem PSEG icon.png
Issue date: 10/14/1982
From: Midura H
Public Service Enterprise Group
To: Haynes R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20065S887 List:
References
NUDOCS 8211020075
Download: ML20065S885 (3)


LER-2082-072, Forwards LER 82-072/03L-0.Detailed Event Analysis Encl
Event date:
Report date:
2722082072R00 - NRC Website

text

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O PSEG Public Service Electric and Gas Company P.O. Box E Hancocks Bridge, New Jersey 08038 Salem Generating Station October 14, 1982 Mr. R. C. Haynes Regional Administrator USNRC Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Haynes:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 82-072/03L Pursuant to the requirements of Salem Generating Station Unit No. 1, Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 82-072/03L. This report is required within thirty (30) days of the occurrence.

Sincerely yours,

/[ L ,5[e H. J. Midura General Manager -

Salem Operations RF:ks

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CC: Distribution The Enerav Peoole.

8211020075 821014

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6 Report Number: 82-072/03L Report Date: 10-14-82 Occurrence Date: 09-25-82 Facility: Salem Generating Station, Unit 1 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Fuel Handling Area Ventilation Systems - Inoperable.

This report was initiated by Incident Report 82-305.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 100% - Unit Load 1110 MWe.

DESCRIPTION OF OCCURRENCE:

At 1345 hours0.0156 days <br />0.374 hours <br />0.00222 weeks <br />5.117725e-4 months <br />, September 25, 1982, during routine operations, the Shift Support Supervisor discovered that all drive belts on No. 11 Fuel Handling Area Exhaust Fan were broken. Further investigation revealed that the belts on No. 12 Fan were loose and the fan was operating at less than normal speed. The Fuel Handling Area ventilation system was declared inoperable, and Technical Specification Action Statement 3.9.12 was entered.

Fuel movement and crane operation with loads over the storage pool were suspended throughout the occurrence.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The failure of the drive belts in both cases was attributed to the high ambient temperature in the immediate vicinity of the ventilation fans. The high temperature caused increased embrit-tlement and subsequent weakening of the belts.

ANALYSIS OF OCCURRENCE:

The limitations on the fuel handling area vent'ilation systems ensure that all radioactive material released from an irradiated fuel assembly will be filtered through the HEPA filters and charcoal adsorber prior to discharge to the atmosphere. Operability of the system and the resulting iodine removal capacity are consistent with the assumptions of the accident analyses.

LER 82-072/03L .

ANALYSIS OF OCCURRENCE: (continued)

Action Statement 3.9.12 requires:

With no Fuel Handling Area ventilation system operable, suspend all operations involving movement of fuel within the storage pool or crane operation with loads over the storage pool until the Fuel Handling Area. ventilation system is restored to operable status.

Compliance with the limitations of the action statement signifi-cantly reduces the likelihood of releasing radioactive material

  • from expended fuel. As noted, the requirements were fulfilled and therefore, no risk to the health or safety of the public was involved. The occurrence constituted operation in a degraded mode permitted by a limiting condition for operation and is reportable in accordance with Technical Specification 6.9.1.9.b.

CORRECTIVE ACTION:

The failed belts were replaced and the fans satisfactorily tested.

The Fuel Handling Area ventilation system was declared operable at 1453 hours0.0168 days <br />0.404 hours <br />0.0024 weeks <br />5.528665e-4 months <br />, September 27, 1982, and Action Statement 3.9.12 was terminated. A Design Change Request ha.s been submitted for an im-proved fan drive. Design Change Request 2EC-0508 has been hubmitted for installation of air conditioning in the 100' Elevation Mechanical Penetration Area. Finally, a belt suited to higher ambient tempera-tures has been ordered as a replacement for the type that failed.

FAILURE DATA:

Not Applicable. ,

Prepared By R. Frahm / ub<,<d Gbneral Manager -

Salem Operations SORC Meeting No. 82-91

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