IR 05000334/1978020
| ML17054C945 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 08/30/1978 |
| From: | Brunner E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Dunn C DUQUESNE LIGHT CO. |
| Shared Package | |
| ML17054C948 | List: |
| References | |
| NUDOCS 7810270192 | |
| Download: ML17054C945 (2) | |
Text
T NIAGARA c- '-'
MOHAWKg NIAGARAMOHAWKPOWER CORPORATION/300 ERIE BOULEVARDWEST, SYRACUSE, N.Y. 13202/TELEPHONE (315) 474-1511 December 1,
1978 Office of Inspection and Enforcement Region I Attention:
Mr. R.
T.. Garison, Chief Reactor Construction and Engineering Support Branch U.
S. Nuclear Regulatory Commission 631 Park. Avenue King of Prussia, PA 19406
Dear Mr. Garison:
Re.:
Nine Mile Point Unit 2
~
Docket No.
50-410 Pursuant to 10CFR50.55(e)(iv),
on November 22, 1978 Mr. L. Narrow of your staff was informed by telephone that Stone 6 Webster and Niagara Mohawk are evaluating a number of weld indications on sleeves cadwelded to the Nine Mile Point Unit 2 containment liner knuckle plate.
These new indications were found on the same cadweld sleeves previously reported to you on June 21, 1978.
Ultrasonic investigation of previously-reported indications revealed a lack of penetration and proper fusion.
Forty-three welds were evaluated in accordance with the requirements of ASME TII Section NE5000.
Thirty-five were determined to be. unacceptable.
As discussed with Mr. Narrow, this information, updates that previously reported.
A report will be provided by December 22, 1978 discussing the investigation'esults.
Very truly yours, NIAGARA MOHAWK POWER CORPORATION Gerald K. Rhode, Vice President System Project Management Xc:
Director of Inspection and Enforcement U.
S. Nuclear Regulatory Commission Washington, D.
C.
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