05000272/LER-1982-080, Forwards LER 82-080/03L-0.Detailed Event Analysis Encl

Forwards LER 82-080/03L-0.Detailed Event Analysis Encl

ML20066J088
Person / Time
Site:	Salem
Issue date:	11/03/1982
From:	Midura H Public Service Enterprise Group
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20066J090	List: 05000272/LER-1982-080, Forwards LER 82-080/03L-0.Detailed Event Analysis Encl
References
NUDOCS 8211230441
Download: ML20066J088 (3)

LER-2082-080, Forwards LER 82-080/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
2722082080R00 - NRC Website

text

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O PSisG Public Service Electric and Gas Company P.O. Box E Hancocks Bridge, New Jersey 08038 Salem Generating Station November 3, 1982 Mr. R. C. Haynes Regional Administrator USNRC Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Haynes:

LICENSE NO. DP R-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 82-080/03L Pursuant to the requirements of Salem Generating Station i Unit No. 1, Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 82-080/03L. This report is required within thirty (30) days of the occurrence.

Sincerely yours,

)' ,

H. J. Midura General Manager -

Salem Operations RF:ks CC: Distribution l

8211230441 821103 PDR ADOCK 05000272 S PDR The Ener0y People pW w,:vw m ,, e n i

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R[ port Number: 82-080/03L Report Date : 11-03-82 Occurrence Date: 10-18-82 Facility: Salem Generating Station, Unit 1 Public Service Electric & Gas Company Hancocks Bridge, New Jersey J8038 IDENTIFICATION OF OCCURRENCE:

Missed Surveillance - Shutdown Margin Calculation.

This report was initiated by Incident Report 82-369.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 5 - Rx Power 0% - Unit Load 0 MWe.

DESCRIPTION OF OCCURRENCE:

On October 18, 1982, during routine shutdown operations, it was discovered that the shutdown margin calculation had not been performed within the interval required by Technical Specification Surveillance Requirement 3.1.1.2. The calculation had been satisfactorily completed at 0915 hours0.0106 days <br />0.254 hours <br />0.00151 weeks <br />3.481575e-4 months <br />, October 17, 1982, and was due, including the 25% allowance, at 1515 hours0.0175 days <br />0.421 hours <br />0.0025 weeks <br />5.764575e-4 months <br />, October 18, 1982.

With the failure to determine the shutdown margin, Action Statement 3.1.1.2 applied. The surveillance was satisfactorily performed at 2100 hours0.0243 days <br />0.583 hours <br />0.00347 weeks <br />7.9905e-4 months <br />, October 18, 1982; the shutdown margin was greater than 1.0% Ak/k.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The shutdown margin calculation was not performed due to personnel oversight. A review of the administrative and procedural controls involved in the scheduling and performance of periodic surveillances revealed no major problems. No recent similar occurrences were noted, and the event was assumed to be of an isolated nature.

ANALYSIS OF OCCURRENCE:

The requirement for shutdown margin in Mode 5 insures that the reactivity transients associated with postulated accident conditions are controllable within acceptable limits and that the reactor will be maintained sufficiently subcritical to preclude inadvertent criticality in the shutdown condition. Since the shutdown margin was subsequently determined to be within specification, the incident involved no risk to the health and safety of the public. The event constituted operation in a degraded mode permitted by a limiting condition for operation, and is reportable in accordance with Technical Specification 6.9.1.9.b.

LEn 82-080/03L ANALYSIS OF OCCURRENCE: (continued)

Action Statement 3.1.1.2 requires:

With the shutdown margin <l.0% Ak/k, immediately initiate and continue boration at > 10 GPM of 20,100 ppm boric acid solution or equivalent until the required shut-down margin is restored.

CORRECTIVE ACTION:

As noted, the shutdown margin was >l% Ak/k, in compliance with the action statement. With satisfactory completion of the surveillance, the action statement no longer applied. Personnel involved with the incident were counseled concerning 'the Technical Specification surveillance requirements for shutdown margin. In view of the nature of the occurrence, no further action was deemed necessary.

FAILURE DATA:

Not Appl cable..

Prepared By R. Frahm /c ht[

Ge6eral Manager -

Salem Operations SORC Meeting No.82-98B 4