ML17059B592

Discusses Response to Request for Deferral Re NRC Bulletin 96-003.Util Requested to Install High Capacity Passive Suction Strainers While Shutdown for Core Shroud Insp,But No Later than 981231

ML17059B592
Person / Time
Site:	Nine Mile Point
Issue date:	06/19/1997
From:	Hood D NRC (Affiliation Not Assigned)
To:	Sylvia B NIAGARA MOHAWK POWER CORP.
References
IEB-96-003, IEB-96-3, TAC-M96157, NUDOCS 9706240170
Download: ML17059B592 (6)

Text

qMq,. B. Ralph Sylvia~

'Executive Vice Pres t Generation

'1,Business Group and Chief Nuclear Officer N>agara Mohawk Power Corporation Nuclear Learniqg Center 450 Lake Road

Oswego, NY 13126 J

19, 1997

SUBJECT:

RESPONSE

TO RE(VEST FOR DEFERRAL REGARDING NRC BULLETIN 96-03 NINE MILE POINT NUCLEAR STATION UNIT NO.

1 (TAC NO. H96157)

Dear gr. Sylvia:

By letter dated October 4,

1996, as supplemented November 4,

1996, you responded to NRC Bulletin 96-03, "Potential Plugging of Emergency Core Cooling Suction Strainers by Debris in Boiling-Water Reactors,"

dated Hay 6, 1996, for Nine Mile Point Nuclear Station Unit No.

1 (NHP1).

Your response noted that the final resolution of Bulletin 96-03 for NMPl could not be implemented by the end of the spring 1997 refueling outage and should be deferred until the next outage which, at that time, was scheduled to occur during the spring of 1999.

Subsequently, as indicated in the NRC's letter of Hay 8,

1997, an unrelated matter associated with the core shroud has resulted in the current operating cycle being limited to 10,600 hours0.00694 days <br />0.167 hours <br />9.920635e-4 weeks <br />2.283e-4 months <br /> of hot operation (about 14-1/2 months), rather than the previously'planned 24 months.

The NRC staff has reviewed your response to Bulletin 96-03 'which included a

number of actions that were completed during the spring 1997 outage.

We conclude that these actions provide reasonable assurance of the continued safe operation of NHPI until the existing strainers are replaced with high capacity strainers.

We request that you install the high capacity passive suction strainers while shutdown for the core shroud inspection, but no later than December 31, 1998.

If this is not acceptable, you should notify the NRC staff in writing within 45 days.

Sincerely,

/s/

, gg tmlIIILp'In')B ~~e Darl Hood, senior project Hanager Project Directorate I-l Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket No. 50-220 cc:

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2055&4001 June 19, 1997 Hr. B. Ralph Sylvia Executive Vice President Generation Business Group and Chief Nuclear Officer Niagara Hohawk Power Corporation Nuclear Learning Center 450 Lake Road

Oswego, NY 13126 C.

SUBJECT:

RESPONSE

TO RE(VEST FOR DEFERRAL REGARDING NRC BULLETIN 96 NINE HILE POINT NUCLEAR STATION UNIT NO.

1 (TAC NO. H96157)

Dear Hr. Sylvia:

By letter dated October 4,

1996, as supplemented November 4,

1996, you responded to NRC Bulletin 96-03, "Potential Plugging of Emergency Core Cooling Suction Strainers by Debris in Boil.ing-Water Reactors,"

dated Hay 6, 1996, for Nine Hile Point Nuclear Station Unit No.

1 (NHPl).

Your response noted that the final resolution of Bulletin 96-03 for NHPl could not be implemented by the end of the spring 1997 refueling outage and should be deferred until the next outage which, at that time, was scheduled to occur during the spring of 1999.

Subsequently, as indicated in the NRC's letter of Hay 8,

1997, an unrelated matter associated with the core shroud has resulted in the current operating cycle being limited to 10,600 hours0.00694 days <br />0.167 hours <br />9.920635e-4 weeks <br />2.283e-4 months <br /> of hot operation (about 14-1/2 months), rather than the previously planned 24 months.

The NRC staff has reviewed your response to Bulletin 96-03 which included a

number of actions that were completed during the spring 1997 outage.

We conclude that these actions provide reasonable assurance of the continued safe operation of NHP1 until the existing strainers are replaced with high capacity strainers.

We'equest that you install the high capacity passive suction strainers while shutdown for the core shroud inspection, but no later than December 31, 1998.

If this is not acceptable you should notify the NRC staff in writing within 45 days.

Docket No. 50-220 cc:

See next page Sincerely, V~~I'~

Darl Hood Senior Project Hanager Project Directorate I-l Division of Reactor Projects I/II Office of Nuclear Reactor Regulation

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

1 Mr. Richard B. Abbott Vice President and General Manager Nuclear Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093 Mr. Martin J.

McCormick, Jr.

Vice President Nuclear Safety Assessment and Support Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093 Hs. Denise J. Wolniak Manager - Licensing Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093 Hr. Kim A. Dahlberg General Manager - Projects Niagara Mohawk Power Corporation Nine Mile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093 Hr. Norman L. Rademacher Plant Hanager, Unit 1

Nine Mile Point Nuclear Station P.O.

Box 63

Lycoming, NY 13093 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Resident Inspector U.S. Nuclear Regulatory Commission P.O.

Box 126 Lycoming; NY 13093 Charles Donaldson, Esquire Assistant Attorney General New York Department of Law 120 Broadway New York, NY 10271

'r. Paul D.

Eddy State of New, York Department of Public Service Power Division, System Operations 3 Empire State Plaza

Albany, NY 12223 Mr. F. William Valentino, President New York State

Energy, Research,

.and Development Authority Corporate Plaza West 286 Washington Avenue Extension

Albany, NY 12203-6399 Hark J. Wetterhahn, Esquire Winston 8 Strawn 1400 L Street, NW Washington, DC 20005-3502 Gary D. Wilson, Esquire Niagara Mohawk Power Corporation 300 Erie Boulevard West

Syracuse, NY 13202 Supervisor Town of Scriba Route 8, Box 382

Oswego, NY 13126

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