ML18086A482

Forwards LER 80-030/03X-3.Detailed Event Analysis Encl

ML18086A482
Person / Time
Site:	Salem
Issue date:	05/04/1981
From:	Uderitz R Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18086A483	List: ML18086A482 ML18086A484
References
NUDOCS 8105140375
Download: ML18086A482 (3)

Text

(:*J PS~G Public Service Electric and Gas Company 80 Park Plaza Newark, N.J. 07101 Phone 201/430-7000 May 4, 1981 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 80-30/03X-2 SUPPLEMENTAL REPORT Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Specifications, Section 6.9.1, we are submitting supple-mental Licensee Event Report for Reportable Occurrence 80-30/03X-2.

Sincerely yours, A-t:l~~

R. A. Uderi~

General Manager -

Nuclear Production CC: Director, Office of Inspection and Enforcement (30 copies)

Director, Office of Management Information and Program Control

( 3 copies) 5 The Energy People

___!_1 05140 37'5  % 2001 1350:1.1 '1-80

Report Number:

e 80-30/03X_;2 Report Date: May 4, 1981 Occurrence Date: 6/1/80 Facility: Salem Generating Station, Unit 1 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Failure of Fire Detection Instrumentation CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 100%

DESCRIPTION OF OCCURRENCE:

During routine surveillance testing of the detectors, it was dis-covered that the fusible plug in the detectors for Unit No. 1 and Unit No. 2 Battery Rooms had melted during the testing. At 0700 hours0.0081 days <br />0.194 hours <br />0.00116 weeks <br />2.6635e-4 months <br />, the detectors were declared inoperable and Action Statement 3.3.3.6 was entered. With the number of operable fire detection instruments less than required, a fire watch was established within one hour to patrol the affected areas at least once per hour IAW Technical Specification 3.3.3.6.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Procedural Inadequacy - The surveillance procedure states, "To test a detector, turn the hot air blower on and selector switch to hot.

Place the hot air blower near the detector; when it trips, a neon light will flash on the side of the detector. Remove heat immedi-ately or the detector will be damaged. NOTE: The Battery Room's detectors do not have neon lights."

ANALYSIS OF OCCURRENCE:

Since the Battery Room detectors do not have neon lights to indicate when the detector trips, it is possible to overheat and damage the detectors.

CORRECTIVE ACTION:

Maintenance personnel replaced the damaged detectors in kind. The detectors were tested satisfactorily and the Action Statement was terminated at 2100 hours0.0243 days <br />0.583 hours <br />0.00347 weeks <br />7.9905e-4 months <br /> on June 3, 1980.

On September 15, 1980, the Station Safety Supervisor initiated two Design Change Requests (1SC428 and 2SC429) which will replace the existing detectors with the Fenwall DTC 200 PB Type. These Fenwall detectors are a non-expendable type detector.

s l.8:Jl+()

LER 80-30/03X-2 5/4/81 The problem of procedural inadequacy is being addressed in the present revising of the station's Fire Fighting Manual.

FAILURE DATA:

Starr Sprinkler Corporation Spot Fire Lowecator Model EPB Prepared By W. J. Steele

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SORC Meeting No. 81-23