ML20093H868

Interim Deficiency Rept Re Drywell Equipment Hatch Covers Supplied by Newport News Industrial Corp.Initially Reported on 840504.Unit 1 Work Will Be Completed by 841201.No Work Scheduled for Unit 2.Next Rept Will Be Submitted by 841215

ML20093H868
Person / Time
Site:	Perry
Issue date:	08/29/1984
From:	Edelman M CLEVELAND ELECTRIC ILLUMINATING CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
(RDC-105-(84)), NUDOCS 8410160415
Download: ML20093H868 (2)

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Dm6 TiiF CL EVELAND ELECTI: C ILLUMIN ATING COMPANY P.o. box 5000 . CLEVELAND. oHlo 44101 - TELEPHONE (216) 622-9800 - ILLUMINATING BLOG. - 55 PUBLICSQUARE Serving The Best Location in the Nation MURRAY R. EDELMAN VICE MtESIDENT August 29, 1984 NUC M A R Mr. James G. Keppler Regional Administrator, Region III Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 RE: Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Drywell Equipment Hatch Covers (RDC 105 (84)]

Dear Mr. Keppler:

This letter serves as the second interim report pursuant to 10CFR50.55(e) concerning the Units I and II Drywell Equipment Hatch Covers which were fabricated and supplied under Procurement Specification SP669 by Newport News Industrial Corporation, Newport News, Virginia (NNIV). Mr. J. W. McCormick-Barger of your office was first notified on May 4, 1984, by Mr. P. Martin of The Cleveland Electric Illuminating Company that this problem was being evaluated per our Deviation Analysis Report 182. Our first interim report on this subject was filed May 31, 1984.

This report contains a description of the deficiency, corrective action taken since our last report, and the planned date for our next rq> ort.

Description of the Deficiency During a review of the vendor (NNIV) documentation package for the Unit I Drywell Equipment Hatch Cover, it was noted that approximately 100 welds attaching stiffeners to the cover plate received only a 10% randem magnetic particle examination (MT) although fabrication drawings required a 10G% MT of these welds. Nonconformance Report (NR) #CQC-3259 was written identifying the condition. Review of the documentation for the Unit II assembly showed this also received a 10% random MT in lieu of the required 100%. Nonconformance Report #TAS-082 was written to document this condition for Unit II.

Further investigation also revealed that the face plate butt welds of the stiffeners had not received 100% radiographic examination (RT) as required by the ASME Code.

8410160415 840829 PDR ADOCK 05000440 S PDR

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$Mr.' James G. Kipplsr'

- 2 -- , August 29, 1984 s;, x-Corrective Action-As~ stated in our previous report, the designer / fabricator,' NNIV, evaluated'the conditions identified on the above referenced NRs to determine.if the 10% NT,.

-as performed, was adequate to ensure the structural integrity of the assem-blies. It was determined that the :10%-NT would not be sufficient. It is therefore necessary to perform a 100% visual examination'(VT) of all welds, record all rejectable defects, and remove them entirely,regardless of their

. depth. ~Where this excavation results in removal of material which exceeds design allowables, the excavation is tx> be 'VT and MT inspected to ensure complete removal of the defect and the area repaired by welding. After welds are visually acceptable, all of the subject welds are to be 100% MT inspected and repaired as necessary.

With. respect to the required RT inspection of the full penetration butt' welds, evaluation is continuing to determine the acceptability of these' welds.and the type and extent of rework or repair necessary to bring the items into Code compliance.

The work described above is currently in progress on the Unit I Equipment-Hatch Cover. It is currently expected that all Unit I work will be' completed by December 1, 1984. The Unit II work has not been scheduled at this time.

Our next report on this condition will be submitted by December 15, 1984.

Please call if there are any additional question,.

Sincerely, 4t44 Murray R. Edelman Vice President Nuclear Group MRE:sr DW165/B/2 cc: Mr. J. A. Grobe l USNRC, Site Office Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555 U.S. Nuclear Regulatory Commission

, c/o Document Management Branch

! Washington, D.C. 20555 l

Records Center, SEE-IN l Institute of Nuclear Power Operations l 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 i

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