ML20205A130
| ML20205A130 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 03/23/1999 |
| From: | Alexander J BOSTON EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20205A137 | List: |
| References | |
| BECO-2.99.035, NUDOCS 9903300302 | |
| Download: ML20205A130 (2) | |
Text
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pLO Boston Eukson A BEC ENERGY COMPANY J.F. Alexander Nuclear Assessment Group Manager March 23,1999 BECo Ltr. 2.99.035 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Docket No. 50-293 License No. DPR-35 Pilarim Station 1999 On-line and 1999 Refuelina Outaae 12 Inservice inspection (ISI) Plan This letter prov! des the Pilgrim Nuclear Power Station (PNPS) ISI Plan for 1999 on-line and 1999 Refueling Outage (RFO) 12 examinations. The on-line examinations are scheduled to be cenducted during 1999. RFO 12 is scheduled to begin on May 8,1999. The scope of the irspection includes the following:
l 1.
Enclosure A provides the post-modification inspection plan for Pilgrim core shroud repair assemblies in response to Section 2.5.2 of NRC Safety Evaluation Report, dated May 12, 1
1995 (TAC NO. M91305). Boston Edisen Company (BECo) is a participant in the BWR Vessel intemals Project (BWRVIP). The Pilgrim-specific core shroud inspection plan was
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developed in accordance with the " Guidelines for Reinspection of RWR Core Shrouds" (BWRVIP-07), EPRI TR-105747, dated February 1996, which addresses NRC SER
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j requirements and recommendations.
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2.
Enclosure B provides the ultrasonic and visual examination plan for core spray internals (piping and spargers) in accordance with BWRVIP-18 guidelines. On October 15,1998,
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BECo presented to tla NRC staff Pilgrim-specific techniques fcr the examination of core spray piping weld P-9 and subsequently demonst ated the examination technique at the GE/EPRI facility on February 8,1999, in line with the Pilgrin1 commitment to provide plan for reinspection and repair of core spray piping intemals (TAC NO. M93398 and BECo letter No.97-033, dated March 18,1997). As the examination progresses during RFO 12, the examination findings willl'e repc ted in accordance with Bulletin 80-13.
3.
Enclosure C provides the ASME Code required examinations that have been scheduled during the Pilgrim Tnird Ten-Year ISI Program in accordance with the 1989 Edition of
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ASME Section XI for piping and the 1992 edition with 1992 addenda for IWE containment l
examinations. The Code required examinations include nondestructive examinations of j
l OAAA1A Pilgrim Nuclear Power Station, Rocky Hill Road. Plymnuth, Massachusetts 02360 i
9903300302 990323 PDR ADOCK 05000293 G
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l safety-related piping systems, welds, attachments, bolting, supports, and containment l
. components.
l The examinatio'n scope of GL88-01 IGSCC welds is modified for RFO 12 based on NRC telephone call to BECo on January 11,1999. NRC indicated that a pending request for reduction in the examination frequency for Category D IGSCC welds for RFO 12 will be granted in response to BECo Letter No.98-126, " Request for Reduction in GL 88-01 IGSCC Inspection Frequencies for Category D Welds Due to the Use of Hydrogen Water l
Chemistry", dated September 4,1998.
In addition to the ASME code required examinations included in Enclosure C, the following augmented examinations are planned for RFO 12.
UT examination of 44 stainless steel piping welds for detection of IGSCC in
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accordance with GL 88-01.
UT examinations of 66 piping locations to detect flow-assisted corrosion in accci,ce with GL 89-08.
UT examinations of 18 Salt Service Water piping spool pieces (1999 on-line) and visual examinations of the interior of 6 spools per GL 89-13.
l Visual examination of buried 'A' loop Salt Service Water discharge piping.
If you have any questions regarding the information contained in this ICder, please contact Walter Lobo at (508) 830-7940.
i der WGL/cis/299035 j
Enclosure:
A. Pilgrim Core Shroud Inspection Plan
Enclosure:
B. Core Spray It' tarnal Piping and Sparger Examinations
Enclosure:
C. ASME Section XI ISI Plan (or 1999 On-line and Refuel Outage #12 cc:
Mr. Alan B. Wang, Project Manager Project Directorate b3 i
Office of Nuclear Reactor Regulation Mail Stop: OWFN 8F2 U. S. Nuclear Regulatory Commission 1 White Flint North 11555 Rockville Pike Rockville, MD 20852 U.S. NRC, Region 1 475 Allendale Road King of Prussia, PA 19406 Senior Resident inspector Pilgnm Nuclear Power Station