ML20091L665

From kanterella
Jump to navigation Jump to search
Interim Deficiency Rept (Rdc 105 (84)) Re Drywell Equipment Hatch Covers Supplied by Newport News Industrial Corp. Initially Reported on 840504.Vendor Performing Evaluation of Welds on Subj Covers.Next Rept Expected by 840831
ML20091L665
Person / Time
Site: Perry  
Issue date: 05/31/1984
From: Edelman M
CLEVELAND ELECTRIC ILLUMINATING CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
(RDC-105-(84)), NUDOCS 8406080155
Download: ML20091L665 (2)


Text

d o

b

[i4 C

,' ; [ li '

?.[ f-5i*

{

( (l L

\\! c I ',.,

-A LU i.

P.O. BOX 5000 - CLEVELAND, oHlo 44101 - TELEPHONE (216) 622-9800 - ILLUMINATING BLDG.

- 55 PUBLIC SQJARE Serving The Best Location in the Nation MURRAY R. EDELMAN g$c En '

May 31, 1984 S N c

Mr. James G. Keppler Regional Administrator, Region III Of fice of Inspection and Enforcement U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 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 an 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 of,'ce was first notified on May 4, 1984, by Mr. P. Martin of The Cleveland El?ctric illuminating Company that this problem was being evaluated per our Deviation Analysis Report 182.

This report contains a description of the deficiency, corrective action, and the planned date for our next/ final report.

Description of the Deficiency During a review of the vendor (NNIV) documentation package for the Unit I Drywell Equipn2nt Hatch Cover it was noted that approximately 100 welds attaching stiffeners to the cover plate received only a 10% random magnetic particle examination (MT) although fabrication drawings required a 100% 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.

8406080155 840531 PDR ADOCK 05000440 q

S PDR JUN 4g 7

,Mr. J:mes.G. Kappler May 31, 1984

,F '

Correction Action The design / fabricator of the hatch cover assemblies, NNIV, is currently

~

- evaluating the conditions identified on the above referenced NRs.

This evaluation includes a review of the design criteria utilized on these assemblies to verify that the specified 100% MT is required or if a random 10% MT, as performed, is adequate to ensure structural integrity of the assemblies under all design load conditions. We will inform you of the results of this evalua-tion and any recommended corrective action in our next report which will be submitted by August 31, 1984.

Please call if there are any additional questions.

Sincerel,

5 D.

Murray R. Edelman Vice President Nuclear Group MRE:pab i

cc:

Mr. J. A. Grobe 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 i

Records Center, SEE-IN j

Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500

- Atlanta, Georgia 30339.

i l

m