ML20071P475
| ML20071P475 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 10/22/1982 |
| From: | Manno S NIAGARA MOHAWK POWER CORP. |
| To: | Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, 82-603, NUDOCS 8211020528 | |
| Download: ML20071P475 (2) | |
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NuMOHAWK Y NIAGARA NIAGARA If0 HAWK POWER CORPORATl0N/300 ERIE BOULEVARD WEST. SYRACUSE. N.Y.13202/ TELEPHONE (315) 474-1511 EAMUEL F. MANNO VICE PRESIDENT NUCLE AM CONSTRUCTION October 22, 1982 (82-603)
Office of Inspection and Enforcement Region I Attention: Mr. R. W. Starcstecki, Director U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406 Re: Nine Mile Point Unit 2 Docket No. 50-410
Dear Mr. Starostecki:
Enclosed is an interim 30 day report in accordance with 10CFR50.55(e) for the deficiency concerning valves manufactured by Clow Corporation. This condition was reported via telephone to Mr. Wiggins of your staff on September 23, 1982, as a potentially reportable deficiency.
Very truly yours, NIAGARA M0 HAWK POWER CORPORATION l
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Samue' F. Manno l
Vice President Nuclear Construction
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Enclosure cc: Director of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. R. D. Schulz, Resident Inspector l
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l 8211020520 821022 PDR ADOCK 05000410 S
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O NIAGARA M0 HAWK POWER CORPORATION Nine Mile Point Unit 2 Docket No. 50-410 Interim Report for a Potentially Reportable Deficiency Under 10CFR50.55(e) Regarding Clow Valves Description of the Deficiency Clow Corporation has advised Stone & Webster Engineering Corporation that 16 valves shipped to the Nine Mile Point Unit 2 site have missed heat treatment as required by ASME Code.
In accordance with ASME Code (1974 edition),
subparagraphs NC-4651(b) and ND-4651(b), heat treatment is required for carbon steel pipe or formed portions of pumps or valves with a wall thickness greater than 3/4 inch included in Group P - number 1 in Section IX that have been cold bent or formed.
The valve bodies for the valves in question were manufactured from SA515 Grade 70 carbon steel plate.
The thickness of the plate was greater than 3/4 inch.
The plate was rolled into hollow cylindrical form by cold working.
The matter is still under investigation. A final report will be submitted by March 31,1983.
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