BECO-87-071, Forwards Rept Describing Generic Ltr 84-11/IGSCC Related Weld Insps,Per Verbal Request from NRC Project Manager. Valves 12-I-16 & RPV-N9B-1 Added to RFO 7 Insp List.Igscc Augmented Insps to Be Completed by 870701

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Forwards Rept Describing Generic Ltr 84-11/IGSCC Related Weld Insps,Per Verbal Request from NRC Project Manager. Valves 12-I-16 & RPV-N9B-1 Added to RFO 7 Insp List.Igscc Augmented Insps to Be Completed by 870701
ML20213F228
Person / Time
Site: Pilgrim
Issue date: 05/06/1987
From: Bird R
BOSTON EDISON CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML20213F230 List:
References
BECO-87-071, BECO-87-71, GL-84-11, TAC-63001, NUDOCS 8705150264
Download: ML20213F228 (2)


Text

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h Generic Letter 84-11

,oam-Executive Offices 800 Boylston Straet Boston, Massachusetts 02199 May 6, 1987 BECo 87-071 Ralph G. Bird Senior Vice President - Nuclear U. S. Nuclear Regulatory Commission Document Control Desk License DPR-35 Hashington, DC 20555 Docket 50-293

Subject:

IGSCC Augmented Inspection Program, Supplemental Information (TAC 63001)

Reference:

1. NRC Letter, Dated January 2,1986, " Generic Letter 84-11, Inspection of Stainless Steel Piping"
2. Boston Edison Company Letter, Dated September 22, 1986,

" Generic letter 84-11, Augmented Inspection Program" The enclosed report, describing Generic Letter 84-11/IGSCC related weld

. inspections, is provided in response to a verbal request from the NRC Project Manager for Pilgrim Station. The report consists of a comprehensive summary of our responses to Generic Letter 84-11/IGSCC and the requested weld matrices. These matrices are presented on Tables 1 and 2 of the enclosure.

Table 1 contains a summary of the current mitigation status of Class 1 piping welds and Table 2 presents the inspection statistics for IGSCC susceptible welds at Pilgrim.

In our September 22, 1986 submittal (Reference 2) we noted that we would inform you of changes made to our program. As indicated in the enclosed report, we have added two welds (12-I-16 and RPV-N98-1) to our RF0 7 inspection list.

Also, your letter dated January 2, 1986 (Reference 1) requested that we submit our plans for an IGSCC augmented inspection program "so that any NRC comments can be reso!ved without affecting the outage schedule." The enclosed information will assist you in your review of our IGSCC augmented inspection program.

Our current outage schedule calls for IGSCC augmented inspections to be completed by July 1, 1987. Please provide your comments by June 15, 1987, so that we can resolve them without affecting the outage schedule.

8705150264 870006 y19 PDR ADOCK 05000293 '

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Enclosure:

(A) Boston Edison Company's Response to Generic Letter 84-11 Summary Overview cc: See next page

BOSTON EDISON COMPANY

- May 6, 1987 U. S. Nuclear Regulatory Conmission Page Two cc: Mr. R. H. Nessman, Project Manager Division of Reactor Projects I/II Office of Nuclear Reactor Regulations U. S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, MD 20814 U. S. Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406 Senior NRC Resident Inspector Pilgrim Nuclear Power Station 1

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