ML17056C245

Discusses Reconsideration of Inservice Relief Request IIIRR22 for Plant.Nrc Agrees W/Request to Perform Visual Exams of Internal Surfaces of Category B-M-2 Valves When Valves Disassembled for Maint,Repairs of Volumetric Exams

ML17056C245
Person / Time
Site:	Nine Mile Point
Issue date:	01/27/1993
From:	Capra R Office of Nuclear Reactor Regulation
To:	Sylvia B NIAGARA MOHAWK POWER CORP.
References
TAC-M85178, NUDOCS 9302100276
Download: ML17056C245 (10)

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 January 27, 1993 Docket No. 50-220 Hr. B. Ralph Sylvia Executive Vice President, Nuclear Niagara Mohawk Power Corporation 301 Plainfield Road

Syracuse, New York 13212

SUBJECT:

RECONSIDERATION OF INSERVICE RELIEF RE(VEST lIIRR22 FOR NINE MILE POINT NUCLEAR STATION UNIT NO.

1 (TAC NO. M85178)

The first 10-Year Inservice Inspection Program for Nine Nile Point 1 was prepared to comply with the requirements of the 1980 Edition with Addenda through Winter 1981 of Section XI of the ASME Code.

This edition of the ASME Code required, in part, a visual examination of the internal surfaces of Category B-H-2 valves once every 10-year interval.

By letter dated August 16,

1989, Niagara Mohawk Power Corporation (NMPC) submitted Relief Request lIIRR22 which requested relief from the requirement for a 100 percent visual examination of the valves'nternal surfaces of certain Category B-M-2 valve groups during the First 10-Year Interval which ended in June 1986.

The NRC staff denied this relief request by letter dated April 26,

1990, and requested that the required visual examination be performed during the next refueling outage (outage currently scheduled to begin on February 19, 1993).

The 1989 Edition of the ASHE Code does not require the previously required periodic visual examinations.

The 1989 Edition of the ASHE Code requires a

visual examination of the internal surfaces of the Category B-H-2 valves only when a valve is disassembled for maintenance, repair, or volumetric examinations.

Visual examinations of the internal surfaces of Category B-H-2 valves are required only once during a 10-year interval even if the valves are subjected to multiple disassemblies.

Effective September 8,

1992, (57 FR 34666) the NRC amended 10 CFR 50.55a to incorporate by reference the 1989 Edition of Section XI, Division I, of the ASHE Code.

Therefore, by letter dated December 11,

1992, NHPC requested the NRC to reconsider its April 26, 1990, denial of Relief Request 1IIRR22 and proposed to perform the visual examinations of the internal surfaces of the affected valve groups only when a

valve is disassembled for maintenance,

repairs, or volumetric examinations in lieu of performing the visual examinations during the next refueling outage.

The NRC staff has reviewed NHPC's request for reconsideration of Relief Request lIIRR22.

NMPC's proposed visual inspection requirements would be consistent with the requirements of the 1989 Edition of the ASHE Code.

These requirements were incorporated by reference in 10 CFR 50.55a effective OCO 9302i00276 930i27 PDR ADOCK 05000220 P

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Mr. B. Ralph Sylvia January 27, 1993 September 8,

1992.

Therefore, the NRC staff agrees with NMPC's request to perform visual examinations of the internal surfaces of Category B-M-2 valves only when a valve is disassembled for maintenance,

repairs, or volumetric examinations provided that all related requirements of the 1989 Edition of the ASME Code are met.

Sincerely, cc:

See next page Robert A. Capra, Director Project Directorate I-1 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation

Mr. B. Ralph Sylvia Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station Unit No.

1 CC:

Hark J. Wetterhahn, Esquire Winston

& Strawn 1400 L Street, NW Washington, DC 20005-3502 Supervisor Town of Scriba Route 8, Box 382

Oswego, New York 13126 Hr, Neil S.

Cams Vice President - Nuclear Generation Niagara Hohawk Power Corporation Nine Mile Point Nuclear Station Post Office Box 32

Lycoming, New York 13093 Resident Inspector U.S. Nuclear Regulatory Commission Post Office Box 126

Lycoming, New York 13093 Gary D. Wilson, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West

Syracuse, New York 13202 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 Hs.

Donna Ross New York State Energy Office 2 Empire State Plaza 16th Floor

Albany, New. York 12223 Hr. Kim Dahlberg Unit 1 Station Superintendent Nine Mile Point Nuclear Station Post'ffice Box 32

Lycoming, New York 13093 Hr. David K. Greene Manager Licensing Niagara Mohawk Power Corporation 301 Plainfield Road

Syracuse, New York 13212 Charles Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, New York 10271 Hr. Paul D. Eddy State of New York Department of Public Service Power Division, System Operations 3 Empire State Plaza

Albany, New York 12223

Mr. B. Ralph Sylvia January 27, 1993 September 8,

1992.

Therefore, the NRC staff agrees with NMPC's request to perform visual examinations of the internal surfaces of Category B-M-2 valves only when a valve is disassembled for maintenance,

repairs, or volumetric examinations provided that all related requirements of the 1989 Edition of the ASME Code are met.

Sincerely, cc:

See next page Original signed by:

Robert A. Capra, Director Project Directorate I-1 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation Distribution:

Docket File NRC L Local PDRs PDI-1 Reading T. Murley/F. Miraglia, 12/G/18 J.

Partlow, 12/G/18 B. Grimes, 9/A/2 J.

Lieberman, 7/H/5 S.

Varga J.

Calvo R. A. Capra C.

Vogan D. Brinkman

• See revious concurrence OGC E. Jordan, MNBB 3701 G. Hill (4)

ACRS (10)

OPA OC/LFDCB Plant File V. McCree, 17/G/21 C. Cowgill, RGN-I J. Strosnider, 7/0/4 G. Johnson, 7/D/4 PDI-1:LA PDI-1: PM EMCB*

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Mr. B. Ralph Sylvia September 1992.

Therefore, the NRC staff agrees with NMPC's request to perform vis l examinations of the internal surfaces of Category B-H-2 valves only when a v lve is disassembled for maintenance,

repairs, or volumetric examinations p

vided that all related requirements of the '1989 Edition of the ASHE Code are me Sincerely, cc:

See next page Donald S.

Brinkman, Seqior Project Manager Project Directorate I-1 Division of Reactor Projects - I/II fice of Nuclear Reactor Regulation II Distribution:

Docket File NRC 5 Local PDRs PDI-1 Reading T. Murley/F. Miraglia, 12/G/18 J.

Partlow, 12/G/18 B. Grimes, 9/A/2 J.

Lieberman, 7/H/5 S.

Varga J.

Calvo R. A. Capra C.

Vogan D. Brinkman OGC E. Jordan, NBB 3701 G. Hill (4).

r ACRS (10)

OPA OC/LFDCB Plant File V. HcCree, 17/G/21 C. Cowgill, RGN-I J. Strosnider, 7/D/4 G. Johnson, 7/D/4 PD I-1: LA CVO an CP

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