05000272/LER-1979-061, Forwards LER 79-061/03L-0

Forwards LER 79-061/03L-0

ML18079B118
Person / Time
Site:	Salem
Issue date:	10/09/1979
From:	Librizzi F Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18079B119	List: 05000272/LER-1979-061, Forwards LER 79-061/03L-0 05000272/LER-1979-061-03, /03L-0:on 790910,during QA Surveillance of Auxiliary Bldg,Two 4-inch Conduits Penetrating Floor Found Not Sealed or Capped & No Fire Watch Posted.Caused by Misinterpretation of Maintenance Procedure M3Y Requirements
References
NUDOCS 7910150575
Download: ML18079B118 (3)

LER-1979-061, Forwards LER 79-061/03L-0

Event date:
Report date:
2721979061R00 - NRC Website

text

PS~G Public Service Electric and Gas Company 80 Park Place Newark. N.J. 07101 Phone 201 430-7000 Mr. Boyce H. Grier Director of USNRC Off ice 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 79-61/03L October 9, 1979 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 79-61/03L.

This report is required within thirty (30) days of the occurrence.

Sincerely yours,

~/~*~-

F. P. Librizz'i General Manager -

Electric Production CC:

Director, Office of Inspection and Enforcement (30 copies)

Director, Office of Management Information and Program Control (3 copies) lL\\11."

~J:H\\l<l.

79101505 7S 9f) ?001 (2UO:vi) 'l.-78

Report Number:

Report Date:

Occurrence Date:

Facility:

79-61/03L 10/9/79 9/10/79 Salem Generating Station Public Service Electric & Gas Company Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Open Electrical Penetration Fire Barrier with No Fire Watch CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode 5 DESCRIPTION OF OCCURRENCE:

During a *station Q.A. surveillance of the Auxiliary Building, two four inch conduits penetrating the 84' elevation floor were found not sealed or capped and no fire watch posted.

This incident was immediately reported to the Senior Shift Supervisor and the maintenance contractor, who had last notified the Shift Supervisor of work performed on the penetrations on 9-5-79.

The maintenance contractor inspected the conduits and had both ends of the con-duits sealed properly in accordance with Maintenance Procedure M3Y.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

It appears that this incident was due to a misinterpretation of Maintenance Procedure M3Y for repair of fire and flood protection seals.

The conduits were installed through the floor on 9-5-79 and properly sealed.

During the day shifts on 9-6-79 and 9-7-79, the conduits were extended approximately 10 feet above elevation 84 and approximately 24 feet was added below elevation 84.

The supervisor in charge of the work failed to note that the fire barriers would be broken during this work and approval must be obtained in the same manner as broaching any other seal.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.7.11 requires that with one or more of the penetration fire barriers protecting safety related areas non-functional, establish a continuous fire watch on at least one side of the affected penetration within one hour.

The conduit fire barriers were inoperable from 9-6-79 to 0830 hours0.00961 days <br />0.231 hours <br />0.00137 weeks <br />3.15815e-4 months <br /> on 9-10-79 with no fire watch posted.

LER 79-61/03L CORRECTIVE ACTION:

A memorandum has been issued to all maintenance contractor personnel clarifying the requirements of Maintenance Procedure M3Y.

All supervisors and craft foremen, who may become involved in breaking fire barriers, have been reinstructed in the requirements of the fire and flood barrier procedure.

FAILURE DATA:

Not Applicable Prepared By A. W. Kapple SORC Meeting No.

76-79