05000272/LER-1979-055, Forwards LER 79-055/01T-0

Forwards LER 79-055/01T-0

ML19208A953
Person / Time
Site:	Salem
Issue date:	09/13/1979
From:	Librizzi F Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19208A954	List: 05000272/LER-1979-055, Forwards LER 79-055/01T-0 05000272/LER-1979-055-01, /01T-0:on 790830,under Certain Accident Conditions,Valve Actuators May Have Insufficient Power to Torque Closed Valves from Fully Open Position.After Evaluation,Cause & Corrective Action Will Be Sent
References
NUDOCS 7909180348
Download: ML19208A953 (1)

LER-1979-055, Forwards LER 79-055/01T-0

Event date:
Report date:
2721979055R00 - NRC Website

text

1

> PSEG Pubhc Service E!ecmc and Gas Company 80 Park Place Newark N J 07101 Phone 201430-7000 September 13, 1979 Mr. Boyce H.

Grier Director of USNRC Office of Inspection and Enforcement Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Grier:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 79-55/0lT Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Specifications, Section 6.9.1, we are submitting Licensee Event Report for Reportable Occurrence 79-55/0lT.

This report is required within fourteen (14) days of the occurrence.

Sincerely yours, Llw h

F.

P.

Librizz' General Manager -

Electric Production CC:

Director, Office of Inspection and Enforcement (40 copies)

Director, Office of Management Information and Program Control (3 copies) 360072

. 4 :.

I

( =.;

7909180.3 9 8 S

1 Report Number:

79-55/0lT Report Date:

9/13/79 Occurrence Date:

8/30/79 Facility:

Salem Generating Station Public Service Electric & Gas Company Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Possible Malfunction of Containment Ventilation Isolation Valves CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode.5 DESCRIPTION OF OCCURRENCE:

In response to a NRC question concerning operation of containment ven-tilation isolation valves, a review of the operating characteristics of the valves in the 10 inch and 36 inch containment penetration lines showed that under certain accident conditions the valve actuators may have insufficient torque to fully close the valves from the fully open position.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

This occurrence is under investigation by the Engineering Department.

When the evaluation is complete, the cause, corrective action and safety analysis will be submitted in a supplemental report.

Prepared by A.

W.

Kapple c

Manager

' sal 6m Generating Station SORC Meeting No.

70-79 fKiOO73

(; bod 180BCO