ML20128L157
| ML20128L157 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 05/07/1985 |
| From: | Opeka J NORTHEAST NUCLEAR ENERGY CO. |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| F0721A, F721A, SD-68, NUDOCS 8505310299 | |
| Download: ML20128L157 (2) | |
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General Offices
- Selden Street, Berlin, Connecticut aisY trsSectac cow =
P.O. BOX 270
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HARTFORD. CONNECTICUT 06141-0270
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May 7,1985 Docket No. 50-423 F0721A Dr. Thomas E. Murley Regional Administrator U.S. Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406
References:
(1)
W.
G.
Counsil letter to T.
E.
Murley, F0669A, dated February 8,1985.
(2)
W.
G.
Counsil letter to T.
E.
Murley, F0694 A, dated March 14,1985.
Dear Dr. Murley:
Millstone Nuclear Power Station, Unit No. 3 Reporting of Potential Significant Deficiencies in Accordance with 10CFR50.55(e):
Parker Hannifin Stainless Steel Fittings (SD-68)
In a January 9,1985 telephone conversation between your Mr. T. Rebelowski and our Mr. L. J. Chiarizia, Northeast Nuclear Energy Company (NNECO) reported a potential significant deficiency in the construction of Millstone Unit No. 3 in accordance with 10CFR50.55(e). The potential significant deficiency involves Parker Hannifin Corporation stainless steel fittings. Parker Hannifin informed our architect-engineer, Stone & Webster Engineering Corporation, of possible material problems which could lead to cracks in a certain lot of their stainless steel fittings.
As previously reported to you in References (1) and (2), 324 of the 341 potentially deficient fittings supplied by Parker Hannifin for use on Millstone Unit No. 3 have been located. All of these 324 fittings were returned to Parker Hannifin for reinspection and we are awaiting the results of their investigation.
We also informed you that the remaining 17 fittings were not located and that Stone & Webster was in the process of verifying whether or not any of these fittings were installed in safety-related systems at Millstone Unit No. 3. Stone
& Webster has completed this review and determined that all safety-related installations are acceptable and do not contain any of these potentially deficient fittings. In addition, the code numbers for these remaining 17 fittings have been noted to prevent future installation should they be located.
8505310299 850507 PDR ADOCK 05000423 S
PDR 17 1D 6
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/ - We are not able to provide a final report at this time. We will provide an update on this matter by June 25,1985.
Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY k E C4 J. F. Oheka)
U Senior Vice President ec:
Mr. J. M. Taylor, Director Division of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D. C. 20555 L_