ML19352F561
| ML19352F561 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 03/10/1995 |
| From: | Marsh L Office of Nuclear Reactor Regulation |
| To: | Boulette T BOSTON EDISON CO. |
| Shared Package | |
| ML19352F562 | List: |
| References | |
| TAC-M91513, NUDOCS 9503160360 | |
| Download: ML19352F561 (2) | |
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'2 WASHINGTON D.C. 20565-0001
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,o thrch 10,1995 Mr. E. Thomar Boulette, Ph.D Senior Vice President - Nuclear Boston Edison Company Pilgrim Nuclear Power Station RfD #1 Rocky Hill Road Plymouth, MA 02360 j
SUBJECT:
REQUEST TO USE AMERICAN SOCIETY OF MECHANICAL ENGINEERS BOILER AND t
PRESSURE VESSEL CODE (ASME CODE) CASES N-416-1 AND N-498-1 AT PILGRIM NUCLEAR POWER STATION (TAC NO. M91513)
Dear Mr. Boulette:
The..RC staff reviewed and evaluated the information provided by the Boston Edison Company (BEco) in a letter dated February 2,1995, related to the above request.
BEco specifically requested approval for the use of the alternative rules of AMSE Section XI Cases N-498-1 and N-416-1.
Based on the information submitted, BEco's alternative is authorized pursuant to 10 CFR 50.55a(a)(3)(ii) because compliance with the specified requirements of Section XI would result in hardship or unusval difficulty without a compensating increase in the level of quality and safety.
For Case N-416-1, BEco's proposed alterF0tive is authorized pursuant to 10 CFR 50.55a(a)(3)(ii) provided additional surface examin;tions are performed on the root pass layer of butt and socket welds on the prassure retaining boundary of Class 3 components when the surface examination method is used in accordance with Section III.
BECo's alternative use of these code cases is authorized until such time as they are published in a future revision of Regulatory Guide (RG) 1.147. At that time, if BEco intends to continue to implement these code cases, BEco must follow all provisions in the code cases with limitations issueu in RG 1.147, if any.
The staff's evaluations and conclusions are contained in the enclosed Safety Evaluation.
This action closes TAC NO. M91513.
Sincerely, Ledyard B. Marsh, Director Project Directorate I-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket No. 50-293
Enclosure:
As stated cc w/ encl'
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