ML20010B897

Forwards LER 81-059/03L-0.Detailed Event Analysis Encl

ML20010B897
Person / Time
Site:	Salem
Issue date:	08/07/1981
From:	Uderitz R Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20010B898	List: 05000311/LER-1981-059, Forwards LER 81-059/03L-0.Detailed Event Analysis Encl 05000311/LER-1981-059-03, /03L-0:on 810709,channel 2 of Pressurizer Overpressure Protection Sys Declared Inoperable Due to Previous Closure of 2PR7 to Isolate 2PR2.Caused by Leakage of 2PR2 to Relief Tank.Valve Will Be Repaired During Outage
References
NUDOCS 8108180446
Download: ML20010B897 (3)

Text

(_

1 LER

~

O PSEG Public Service Electric and Gas Company 80 Park Plaza Newark, N.J. 07101 Phone 201/430-7000 August 7, 1981 co O)

< , A Mr. Boyce H. Grier 9- I-Director of USNRc 2 AUG 171981 m 1 Office of Inspectioa and Enforcement {g ,, p l Region 1 spavasue 631 Park Avenue King of Prussia, Pennsylvania 19406 4 /

Dear Mr. Grier:

G3 h'

LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-59/03L Pursuant to the requirements of Salem Generating Station Unit No. 2 Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 81-59/03L. This report is required within thirty (30) days of the occurrence.

Sincerely yours, M/ MY  :

R. A. Uderitz General Manager -

Nucle;r Production

, CC: Director, Office of Inspection

! and Enforcement (30 copies)

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

5. 1 8103100446 810807" PDR ADOCK 05000311 S PDR The Energy People 95 2001 (4W4181

I .

Rep 6rt Number: 81-59/03L ,

Report Date: August 7, 1981 Occurrence Date: 7-9-81 Facility: Salem Generating Station, Unit 2 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Pressurizer Overpressure Protection System Channel 2 - Inoperable.

This report was initiated by Incident Report 81-242.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 4 - Rx Power 0% - Unit Load 0 MWe DESCRIPTION OF OCCURRENCE:

During cooldown on July 9, 1981, the Pressurizer Overpressure Protec-tion System (POPS) . channel 2 was declared inoperable due to previous closure of isolation valve 2PR7 because of known leak through on the pressurizer power operated relief valve (PORV) 2PR2. Action statement 3.4.10.3.a was entered when Reactor Coolant System (RCS) temperature decreased to 312*F at 1957 hours0.0227 days <br />0.544 hours <br />0.00324 weeks <br />7.446385e-4 months <br />, July 9, 1981.

This occurrence constituted operation in a degraded mode in accordance with technical specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

1 PORV 2PR2 was previously identified to be leaking through, and was isolated by closing 2PR7. When RCS temperature was decreased to 312*F, POPS channel 2 was declared inoperable because it was isolated.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.4.10.3.a requires:

With one POPS inoperable, restore the inoperable POPS to operable status within 7 days or depressurize and vent the RCS through a 3.14 square inch. vent within the next 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

CORRECTIVE ACTION:

At 0715, July 12, 1981, Unit 2 was raised above 312*F, terminating action statement 3.4.10.3.a. Action statement 3.4.5.a was entered immediately because 2PR7 was closed and the power removed.

Valve 2PR2 will be repaired and tested during the next refueling outage.

A supplemental report will be submitted at that time.

5. -

l LER 81-59/03L 8/7/8' '

1 -

FAILURE DATA:

Valve 2PR2 Copes-Vulcan 1

i' j Prepared By F. Dickey ,

04-c, -

j ManagMr - Salem Ge6erating Station SORC Meeting No. 81-71 a

l i

t t

1 Y

k. .

i J

i t

i s

[

1 t: