ML20133D779
| ML20133D779 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 09/18/1985 |
| From: | Willie Lee, Opeka J NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| (SD-81), F0843A, F843A, NUDOCS 8510090177 | |
| Download: ML20133D779 (2) | |
Text
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(203) 665 5000 September 18,1985 Docket No. 50-423 F0843A Dr. Thomas E. Murley Regional Admini:;trator U.S. Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406
References:
(1) 3.F. Opeka letter to T.E. Murley, F0754A, dated May 10,1985.
(2) 3.F. Opeka letter to T.E. Murley, F0777 A, dated July 11,1985.
Dear Dr. Murley:
Millstone Nuclear Power Station, Unit No. 3 Reporting of Potential Significant Deficiencies in Accordance with 10CFR50.55(c):
Structural Steel Connections in the Main Steam Valve Building (50-81)
In an April 12,1985 telephone conversation between your Mr. T. Rebelowski and our Mr. P.J. Quinlan, Northeast Nuclear Energy Company (NNECO) reported a potential significant deficiency in the construction of Millstone Unit No. 3 in accordance with 10CFR 50.55(e).
As noted in Reference (1), the potential
(
significant deficiency involved structural steel connections in the Main Steam Valve Building (MSVB).
Dur% the NRC Construction Appraisal Team inspection at Millstone Unit No. 3, a concern was identified regarding undersized fillet welds on the clip angles for three (3) W14 x 68 beams welded to embedded plates for the structural steel installation in the MSV!3. Further concerns were identified with beams utilizing fixed end and slotted connections. The inspection also revealed beams with slotted connections to have bolts tensioned beyond the finger-tight requirement of the design drawing.
0510090177 050910 PDR ADOCK 00000A23 0
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. As noted in Reference (2), NNECO determined this to be a significant deficiency in accordance with 10CFR50.55(e). NNECO also noted that these conditions are expected to be limited to the MSVB and that a sampling of connections in other QA Category 1 Buildings was still being performed to verify this. The sampling of connections has been completed, however, an evaluation of sample results is still in progress. We will provide a final report including corrective action on this matter by October 10,1985.
This update is being provided on September 18 rather than September 12, as discussed with your Mr. D. Lipinski.
Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY J.F.lopeka
/
Senior Vice President
[
A by: W. F. Fee Executive Vice President cc:
Mr. 3.M. Taylor, Director Division of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 1
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