05000272/LER-1981-061, Forwards LER 81-061/03L-0.Detailed Event Analysis Encl

Forwards LER 81-061/03L-0.Detailed Event Analysis Encl

ML20030A836
Person / Time
Site:	Salem
Issue date:	07/16/1981
From:	Uderitz R Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20030A840	List: 05000272/LER-1981-061, Forwards LER 81-061/03L-0.Detailed Event Analysis Encl 05000272/LER-1981-061-03, /03L-0:on 810616,pressurizer Over Protection Sys Channel 1 Isolation Valve 1PR6 Was Closed to Isolate Leakage Through 1PR1.Caused by Steam Cutting of Valve Cage.Valve Cage Replaced
References
NUDOCS 8107290082
Download: ML20030A836 (2)

LER-1981-061, Forwards LER 81-061/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
2721981061R00 - NRC Website

text

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O PSEG Public Service Electric and Gas Company 80 Park Plaza Newark, N.J. 07101 Phone 20U430-7000 July 16, 1981 p

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( T I./

Mr. Boyce H. Grier p kl.ijg f Director of ItcNRC Office of lus,

tion and Enforcement Region 1 E) JUL 3379g;,J 631 Park Avenue Usa m % m C King of Prussia, Pennsylvania 19406

Dear Mr. Grier:

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LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 81-61/03L Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Spc cifications, Section 6.9.1, we are submitting Licensee Event Report for Reportable Occurrence 81-61/03L.

This report was telecopied to your office on July 16, 1981, which was within thirty (30) days of the occurrence as required.

Sincerely yours, R. A. Uderitzc General Manager -

Nuclear Production CC:

Director, Office of Inspection and Enforcement (30 copies)

Director, Office of Management Information and Program Control (3 copies) 8107290002 810716 A

DR ADOCK 05000 p

The Energy People 6i

% 2001 (400M) 181 s

r Report Number:

81-61/03L Report Date:

July 16, 1981 Occurrence Date:

6-16-81 Facility:

Salem Generating Station, Unit 1 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Pressurizer Over Protection System - Channel 1 Inoperable.

This report was initiated by Incident Report 81-194.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 5 - Rx Power 0% - 0 MWe DESCRIPTION OF OCCURRENCE:

At 0815 hours0.00943 days <br />0.226 hours <br />0.00135 weeks <br />3.101075e-4 months <br />, June 16, 1981, leakage through 1PRl to the pressurizer relief tank (PRT) was indicated by a pressurizer relief valve high tailpipe temperature of approximately 220*F.

The Pressurizer Over Protection System (POPS) channel 1 isol'ation valve, lPR6 was closed to isolate the leakage to the PRT.

Closure of 1PR6 blocked the pressure relief path for POPS channel 1 (lPRl) and the channel was declared inoperable and action statement 3.4.9.3.a was entered.

Work order OD-941881 was issued for inspection and repair of 1PRl.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

lPR1 had developed an internal Jeakage path during normal operations.

ANALYSIS OF OCCURRENCE:

With one POPS inoperable, either restore the inoperable POPS to operable status within 7 days or depressurize and vent the RCS through a 3.14 square inch vent (s) within the next 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, maintain the RCS in a vented condition until both POPS have been restored to operable status.

CORRECTIVE ACTION

Disassembly and insoection of lPR1 revealed steam cutting of the valve cage.

The valvo cage was replaced in kind by maintenance and lPR1 was re-assembled, satisfactory functionally tested, and returned to normal service.

At 1031 hours0.0119 days <br />0.286 hours <br />0.0017 weeks <br />3.922955e-4 months <br />, June 18, 1981, POPS channel 1 was declare operable and action statement 3.4.9.3.a was terminated.

FAILURE DATA:

Copes vulcan valve, mark no. XAS.

Cage part number 141703.

Prepared By J.

J.

Espey

/r SORC Meeting No.

81-63 L