ML20217J608
| ML20217J608 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 10/07/1997 |
| From: | Stolz J NRC (Affiliation Not Assigned) |
| To: | Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| Shared Package | |
| ML20217J612 | List: |
| References | |
| IEIN-97-063, IEIN-97-63, TAC-M99509, NUDOCS 9710210193 | |
| Download: ML20217J608 (4) | |
Text
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UNITED STATES (o 27T y
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WASHINGTON, D.C. 2M66-0001 October 7, 1997 Mr. George A. Hunger, Jr.
Director-Licensing, MC 62A-1 PECO Energy Company Nuclear Group Headquarters Correspondence Control Desk P.O. Box No. 195 Wayne, PA 19087-0195 SURJECT: Al.TERNATIVE TO REACTOR PRESSURE VESSEL (RPV) CIRCUMFERENTIAL WE INSPECTIONS, PEACH BOTTOM ATOMIC POWER STATION, UNIT 3 (TAC NO.
M99509) i
References:
1.
Letter from G. A. Hunger, Jr., PECO Energy Company (PECO), to U.S. Nuclear Regulatory Comission (NRC), dated April 29, 1997 2.
Letter from J. F. Stolz, ';RC, to G. A. Hunger, Jr., PECO, dated July 2, 1997
Dear Mr. Hunger:
By letter dated September 4, 1997, as supplemented by letter dated September 22, 1997, PECO requested NRC approval of Unit 3 RPV alternative reactor vessel weld examinations pursuant to the provisions of 10 CFR 50.55a(g)(6)(ii) with information(A)(5) for the next two operating cycles.
This is consistent contained in Information Notice (IN) 97-63, " Status of NRC Staff Review of BWRVIP-05."
You have proposed examin:ng reactor vessel longitudinal shell welds to the maximum extent practical from the inner diameter, within the constraints of vessel internal restrictions. The extent of weld examination coverage anticipated for the longitudinal shell welds is identified on Table 1 of Reference 1, as approved in the Reference 2 letter.
Your current examination
. plan is designed to provide longitudinal weld coverage, however, you indicated that incidental coverage will result in an estimated portion of 2-3 percent of the intersecting horizontal weld.
You proposed these inspections as an alternative to the augmented examinations specified in 10 CFR 50.55a(g)(6)(ii)(A)(2) for circumferential welds, and as an alternative to the inservice inspection requirements for circumferential welds specified it, the American Society of Mechanical Engineers (ASME) Code,Section XI, 1980 Edition with Winter 1981 Addenda.
Further, you have described operator training, and have established procedures that should reduce the probability of ccid over-pressure transients during the next two operating periods.
Therefore, we conclude that PECO can operate Unit 3 during the next two operating periods with an acceptable level of quality and safety, and can delay Unit 3 RPV circumferential weld inspection for two operating periods.
Therefore, the proposed alternative is authorized pursuant to gg g
10 CFK 50.55a(a)(3)(i).
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2-Our evaluation and conclusions are contained in tho enclosed Safety Evaluation.
Sincerely,
/s/
John F. Stolz, Director Project Directorate I-2
- Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket.No. 50-278
Enclosure:
. Safety Evaluation cc w/ encl:- See next page
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G. Hunger W Our evaluation and conclusions are contained in the enclosed safety evaluation.
Sincerely, g
o n F. Stolz, Director l
P oject Directorate I-ivision of Reactor Projects - I/II.
Office of Nuclear Reactor Regulation 1
Docket No. 50-278
Enclosure:
Safety Evaluation cc w/ encl:
See next page
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- Mr. George A. Hunger, Jr.
Peach Bottom Atoalc Power Station, PECO Energy. company.
Units 2 and 3 cc:
-J. W. Durham, Sr., Esquire Chief-Division of Nuclear Safety Sr. V.P. & General Counsel PA Dept. of PECO Energy Company Environmental Resources 2301 Market Street, S26-1 P.O. Box 8469 Philadelphia, PA 19101 Harrisburg, PA 17105-8469 PECO-Energy Company ATTN: Mr. T. N. Mitchell, Vice President Board of Supervisors Peach Bottom Atomic Power Station Peach Bottom Township 1848 Lay Road R. D. #1 Delta, PA 17314 Delta, PA 17314 PECO Energy Company-Pu'lic Service Commission of Maryland o
ATTN: Regulatory Engineer, A4-SS Engineering Division Peach Bottom Atomic Power Station Chief-Engineer 1848 Lay Road 6 St. Paul Centre Delta, PA 17314 Baltimore, MD 21202-6806 Resident Inspector Mr. Richard McLean U.S. Nuclear Regulatory CO.amission Power Plant and Environmental.
Peach Bottom Atomic Power Station Review Division P.O. Box 399 Department of Natural Resources Delta, PA 17314 B-3, Tawes State Office Building Annapolis, MD-21401 Regional Administrator, Region I U.S. Nuclear Regulatory Commission Dr. Judith Johnsrud 475 Allendale Road National Energy Committee King of Prussia, PA 19406 Sierra Club 433 Orlando Avenue Mr. Roland Fletcher State College, PA 16803 Department of Environment 201 West Preston Street Manager-Bu3iness & Co-owner Affairs Baltimore, MD 21201 Public Service Electric and Gas Company
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F. Kirby, III P.O. Box 236 External Operations - Nuclear Hancocks Bridge, NJ 08038-0236 Delmarva Power & Light Company P.O. Box 231 Wilmington, DE. 19899 Manager-Peach Bottom Licensing PECO Energy Company PECO Energy Company Nuclear Group Headquarters Plant Manager Correspondence Control Desk Peach Bottom Atomic Power Station P.O. Box No. 195 1848 Lay Road Wayne, PA 19087-0195 Delta, PA 17314
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