ML20205A130

Forwards PNPS ISI Plan for 1999 on-line & 1999 RFO 12 Exams. On-line Exams Scheduled to Be Conducted During 1999.RFO 12 Scheduled to Begin on 990508

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: ML20205A130 ML20205A145
References
BECO-2.99.035, NUDOCS 9903300302
Download: ML20205A130 (2)

Text

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p LO 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 /

developed in accordance with the " Guidelines for Reinspection of RWR Core Shrouds" (BWRVIP-07), EPRI TR-105747, dated February 1996, which addresses NRC SER / j requirements and recommendations. j l

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, 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 l during the Pilgrim Tnird Ten-Year ISI Program in accordance with the 1989 Edition of )

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 PDR ,

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l safety-related piping systems, welds, attachments, bolting, supports, and containment -

. components. I l

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 )

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 l 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 i 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