ML19330B495

Discusses Potentially Reportable Event Re Failure by Newberg-Marble Hill (N-MH) to Incorporate Contractor Change request.N-MH QA Program Deficiencies Corrected.Incident Not Reportable Under Requirements of 10CFR50.55(e)

ML19330B495
Person / Time
Site:	Marble Hill
Issue date:	07/25/1980
From:	Shields S PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA
To:
References
NUDOCS 8008040090
Download: ML19330B495 (2)

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.J PUBLIC SERVICE -

INDIANA

' S. W. Shields Senior Vice Pres: dent -

Nuclear Division July 25, 1980 Mr. James G. Keppler, Director Docket Nos.* STN 50-546 U. S. Nuclear Regulatory Commission STN 50-547 Region III Construction Per=it Nos.:

799 Roosevelt Road CPPR - 170 Glen Ellyn, Illinois 60137 CPPR - 171 Marble Hill Nuclear Generating Station - Units 1 and 2

Dear Mr. Keppler:

On July 24, 1979, Mr. C. E. Chmielewski of Public Service Cc=pany of Indiana, Inc., (PSI) telephoned your office to notify you of a potentially reportable incident as required by 10 CFR 50.55(e).

This incident was the failure of Newberg-Marble Hill (N-MH) to incorporate Contractor Change Request (CCR) 200 into its concrete pour located at the 383' elevation in the Auxiliary Building. The pour was made on March 29, 1979, using 3500 psi concrete instead of the 5500 psi concrete required by CCR 200.

As discussed in the interim report of August 23, 1979, Sargent

& Lundy Engineers perfor=ed an evaluation of the pour area and found that, based on the 91-day compression data, the concrete strength was adequate to meet design requirements. Also as discussed in the interim report, PSI investigated the potential breakdotm of the N-MH Quality Assurance Program. It was determined that the delayed reporting of the incident by N-1E QA personnel was an isolated occurence, however some deficiencies did exist in the N-!m QA Program. N-FM personnel could previously initiate Contractor Change Requests without notifying their QA personnel and hang hold tags on pours without logging or notifying QA personnel until af ter the Contractor Change Request was approved. These deficiencies have been corrected and N-MH QA personnel =ust nou be immediately notified of Contractor Change Request initiation and hold tags will be hung by N-FM QA personnel.

N-MH.has also conducted training for timely reporting of deficiencies.

As no construction deficiencies resulted which wculd have adversely affected the safety of operations of the plant, tnis incident is g0 8008040o 9 O P.O. Box 190, New Washington, Indiana 47162 812. 293. 4441

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PU'3UC-SERVICE INDIANA Letter

Mr. James G. Keppler July 25, 1980 e

not reportable under 10 CFR 50.55(e).

-If you have any questions, please feel free to contact ce.

Sinceyly,

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S. W. Shields TDG/cg cc: Director of Inspection and Enforcement U. S. Nuclear Regulator'f Commission

.Washingten, D. C. 20555 E. R. Schweibin:, P. E.

J. J. Harrison

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