05000311/LER-1982-021, Forwards LER 82-021/03L-0.Detailed Event Analysis Encl

Forwards LER 82-021/03L-0.Detailed Event Analysis Encl

ML20054D123
Person / Time
Site:	Salem
Issue date:	04/07/1982
From:	Midura H Public Service Enterprise Group
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20054D124	List: 05000311/LER-1982-021, Forwards LER 82-021/03L-0.Detailed Event Analysis Encl 05000311/LER-1982-021-03, /03L-0:on 820320,while Performing Surveillance Procedure SP(O)4.6.1.3 on 100 Ft Elevation Containment Air Lock,Leakage Rate Exceeded Limit of 0.05 La at Design Pressure of 47.0 Psig.Caused by Loose Chain on Inner Door
References
NUDOCS 8204220362
Download: ML20054D123 (3)

LER-1982-021, Forwards LER 82-021/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3111982021R00 - NRC Website

text

O PSMG Public Service Electnc and Gas Company P.O. Box E Hancocks Bridge, New Jersey 08038 Salem Generating Station April 7, 1982 Q

\\

necovmo Mr.

R.

C.

Ilaynes pl APR 211982m- _o Regional Administrator a

USNRC 88888 " ?

m-Region 1 E

ist 631 Park Avenue g

King of Prussia, Pennsylvania 19406

'b p

Dear Mr. Haynes:

LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 82-21/03L 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 82-21/03L.

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

Sincerely yours, l'f

• h H.

J.

Midura General Manager -

Salem Operations FD:ks CC:

Distribution 8204220362 820407 PDR ADOCK 05000311 S

PDR gh The Energy People I

(

56 21F3 (2CM) 11 -81

Report Number:

82-21/03L Report Date:

04-07-82 Occurrence Date:

03-20-82 Facility:

Salem Generating Station, Unit 2 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Containment Air Lock - Inoperable.

This report was initiated by Incident Report 82-057.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 94% - Unit Load 1100 MWe DESCRIPTION OF OCCURRENCE:

On March 20, 1982, while performing Surveillance Procedure SP (O) 4. 6.1. 3 on the 100 ' elevation Containment Air Lock, it was determined that the leakage rate exceeded the limit of 0.05 La at the design pressure of 47.0 PSIG, as required by Technical Specification 3.6.1.3.b.

The Air Lock was declared inoperable, and at 1810 hours0.0209 days <br />0.503 hours <br />0.00299 weeks <br />6.88705e-4 months <br /> Action Statement 3.6.1.3.a was entered.

This occurrence constituted operation in a degraded mode in accordance with Technical Specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause of the Containment Air Lock leakage was a loose chain on the inner door. handwheel mechanism, which prevented the door from sealing properly.

ANALYSIS OF OCCURRENCE :

Technical Specification 3.6.1.3.a requires:

With one containment air lock door inoperable, maintain at least the operable air lock door closed and restore the inoperable air lock door to operable status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, or be in at least hot standby within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in cold shutdown within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

LER 82-21/03L i

CORRECTIVE ACTION

The air lock outer door was maintained in a closed position.

The handwheel chain was properly adjusted and Surveillance Procedure SP(O)4.6.1.3 satisfactorily performed.

At 2115 hours0.0245 days <br />0.588 hours <br />0.0035 weeks <br />8.047575e-4 months <br />, March 20, 1982 the air lock was declared operable, ard Action Statement 3.6.1.3.a was terminated.

FAILURE DATA:

Chicago Bridge and Iron Co.

Containment Air Lock Handwheel Mechanism Prepared By R.

Frahm

/V General Manager -

Salem Operations SORC Meeting No.

82-38 3