ML19207B462

Interim Deficiency Rept Re Failure to Incorporate Contractor Change Request 200 Into Concrete Pour in Auxiliary Bldg. Caused by QA Program Breakdown.Review Conducted to Assure Presence of Hold Tags at Pour Locations

ML19207B462
Person / Time
Site:	Marble Hill
Issue date:	08/23/1979
From:	Shields S PSI ENERGY, INC. A/K/A PUBLIC SERVICE CO. OF INDIANA
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 7908290500
Download: ML19207B462 (2)

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. :.c 08 2 3790094 PUBLIC SERVICE INDIANA August 23,1979 S. W. Shields Vice Prescent . Electric system Mr. James G. Keppler, Director U.S. Nuclear Regulatory Commission Regior 799 P .i ' : Road Glen Ellyn, Illinois 60137 Docket Nos: STN 50-546 STN 50-547 Construction Permit Nos: CPPR-170 CPPR-171 MARBLE HILL NUCLEAR GENERATING STATION, UNITS 1&?

Dear Mr. Keppler:

On July 24,1979, Mr. C. E. Chmielewski of Public Service Company of Indiana, Inc.

(PSI) telephoned your office to notify you of a potentially reportable deficiency the failure of Newberg-Marble Hill to incorporate Contractor Change involving Request (CCR) 200 into its concrete pour located at the 383' elevation in the Auxiliary Building.

The peut was made on March 29,1979 using 3500 psi concrete instead of 5500 psi concrete required by CCR 200. This change request to the higher strength was approved by PSI on February 20, 1979 to compensate for short reinforcing bar dowel projections by increasing concrete strength such that the total structural strength would meet required seismic star.dards.

Sargent & Lundy Engineers have performed an evaluation of the pour area and have found that, based on the 91-day compression tast data, the concrete strength is adequate to meet requirements.

It has been determined that CCR 200 was not Inc.orporated into the pour card and that the hold tag required to be placed in the potr area by the CCR initiator was not observed by the Newbc ; inspector present during the pour. A complete review of all open Contractor C .nge Requests was conducted to assure that hold tags were present at pois loca .ons. Also, Newberg procedures are being changed to require the CCR in.tiator to notify QC when a CCR is initiated and for Newberg QC to hang hold tage.

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1000 East Man Street P!ainfie!d, Indiana 46163 317..

7 9 0829 0Sco,939 9611

August 23,1979 Mr. James G. Keppler, Director U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 PSI r,as also concerned that the Newberg Nonconformance Report (NCR 393) doct.menting this deficiency was not initiated until July 3,1979.- It has been dete mined that the Newberg QC Engineer responsible for the pour area in question was a vacation when the pcur was accomplished. Subsequent to his return. CCR 200 wa discovered open !v 'dm during a routine review of the CCR log. Upon checking the pour records ano determining that the incorrect mix had been poured, the Newberg QC Engineer informed a PSI Field Construction Engineer and made a personal note to himself for followup; however, he failed to initiate the required Nonconformance Report at that time. Newber Nonconformance Report #416 and, along withwill PSI,g has documented investigate this item on further to assure deficiencies are documented in a timely manner.

PSI determined that this incident was potentially reportable as a QA program breakdown under 10CFR50.55(e) which, were it to have remained uncorrected, could have significant safety implications.

This letter is intended to fulfill the requirements of an interim report as defined in 10CFR50.55(e)(3). A final report will be filed when revision of Newberg procedures is complete and the corrective action for untimely initiation of Nonconformance Reports has been completed and reviewed by PSI.

Sincerely,

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S. W. Shields CEC:jbf cc: Director of Inspection & Enforcement U.S. Nuclear Regulatory Commission Washington, D. C. 20555 E. R. Schweibinz, P.E.

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