ML053550016

Request for Additional Information Related to License Amendment Request

ML053550016
Person / Time
Site:	Davis Besse
Issue date:	12/22/2005
From:	Sands S Plant Licensing Branch III-2
To:	Bezilla M FirstEnergy Nuclear Operating Co
Sands S,NRR/DLPM, 415-3154
References
TAC MC6888
Download: ML053550016 (5)

Text

December 22, 2005 Mr. Mark B. Bezilla Vice President FirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power Station Mail Stop A-DB-3080 5501 North State Route 2 Oak Harbor, OH 43449-9760

SUBJECT:

DAVIS-BESSE NUCLEAR POWER STATION, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO MARK B-HTP FUEL DESIGN FOR CYCLE 15 (TAC NO. MC6888)

Dear Mr. Bezilla:

By letter to the Nuclear Regulation Commission dated May 2, 2005, as supplemented by letters dated August 28 and September 15, 2005, FirstEnergy Nuclear Operating Company submitted a license amendment request to support the Mark B-HTP fuel design for Cycle 15.

The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter, and was forwarded to your staff on November 3, 2005. During a discussion with your staff, it was agreed that you would provide a response 30 days from the date of this letter.

The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRCs goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154.

Sincerely,

/RA/

Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-346

Enclosure:

As stated cc w/encl: See next page

December 22, 2005 Mr. Mark B. Bezilla Vice President FirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power Station Mail Stop A-DB-3080 5501 North State Route 2 Oak Harbor, OH 43449-9760

SUBJECT:

DAVIS-BESSE NUCLEAR POWER STATION, UNIT 1 - REQUEST FOR ADDITIONAL INFORMATION RELATED TO MARK B-HTP FUEL DESIGN FOR CYCLE 15 (TAC NO. MC6888)

Dear Mr. Bezilla:

By letter to the Nuclear Regulation Commission dated May 2, 2005, as supplemented by letters dated August 28 and September 15, 2005, FirstEnergy Nuclear Operating Company submitted a license amendment request to support the Mark B-HTP fuel design for Cycle 15.

The NRC staff is reviewing your submittal and has determined that additional information is required to complete the review. The specific information requested is addressed in the enclosure to this letter, and was forwarded to your staff on November 3, 2005. During a discussion with your staff, it was agreed that you would provide a response 30 days from the date of this letter.

The NRC staff considers that timely responses to requests for additional information help ensure sufficient time is available for staff review and contribute toward the NRCs goal of efficient and effective use of staff resources. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-3154.

Sincerely,

/RA/

Stephen P. Sands, Project Manager Plant Licensing Branch III-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-346

Enclosure:

As stated cc w/encl: See next page DISTRIBUTION:

PUBLIC LPLF R/F RidsNrrDorlLplf RidsNrrPMSSands RidsNrrLADClarke RidsAcrsAcnwMail RidsOgcRp RidsRgn3MailCenter RidsDeEicb PRebstock DorlDpr ADAMS Accession Number: ML053550016 OFFICE LPL3-2/PM LPL3-2/LA DE/EICB/BC LPL3-2/BC NAME SSands DClarke AHowe MLandau DATE 12/22/05 12/22/05 12/22/05 12/22/05 OFFICIAL RECORD COPY

REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE MARK B-HTP FUEL DESIGN FOR CYCLE 15 LICENSE AMENDMENT REQUEST DAVIS-BESSE NUCLEAR POWER STATION DOCKET NO. 50-346 By letter to the Nuclear Regulatory Commission (NRC) dated May 2, 2005, as supplemented by letters dated August 28 and September 15, 2005, FirstEnergy Nuclear Operating Company submitted a request for a license amendment to support the Mark B-HTP fuel design for Cycle 15. The NRC staff determined that the following information is needed in order to complete its review:

1. Please provide the uncertainty calculation by which temperature and pressure measurement uncertainties are combined into the composite 30.239 psi total combined error and the 10.72 psi M&TE/drift error. Show how the temperature uncertainty is accounted for in the development of the uncertainty associated with the pressure limit corresponding to a measured (as opposed to actual) value of temperature.

2. Through numerous recent discussions and correspondence between the NRC and the Nuclear Energy Institute, it has been established that the following would be appropriate:

• the limiting setpoint should be designated limiting safety system setpoint (LSSS).

• as-found setpoint deviation in excess of some limiting value would result in a need for a positive channel operability assessment and invocation of the plant corrective action program (CAP) before the channel could be declared OPERABLE and returned to service.

• an as-found setpoint in excess of the allowable value (AV) would result in the channel being declared inoperable.

The licensee has asserted that the AV, not the limiting setpoint, is the LSSS. The proposed technical specifications (TS) do not provide any criteria at all by which operability would be assessed, or by which CAP would be invoked. The proposed TS appear to accept any value at all for the as-found setpoint without explicitly invoking any particular consequences other than reset to an acceptable value. Please explain how the proposed TS and the associated testing provide for the assessment of channel operability as required in 10 CFR 50.36, Technical specifications.

3. The licensee proposes to evaluate the as-found setpoint against the nominal setpoint, rather than against the previous as-left value. Please explain why this does not result in the masking of excessive deviation. It would seem that with an as-left setting on one side of the nominal setpoint and an as-found value on the other, the portion of the setpoint deviation from the as-left setting to the nominal setpoint would be ignored.

Please explain how the proposed approach would be sufficiently sensitive and effective in the detection of excessive deviation.

Enclosure

Davis-Besse Nuclear Power Station, Unit 1 cc:

Manager - Regulatory Affairs State of Ohio FirstEnergy Nuclear Operating Company Public Utilities Commission Davis-Besse Nuclear Power Station 180 East Broad Street 5501 North State - Route 2 Columbus, OH 43266-0573 Oak Harbor, OH 43449-9760 Attorney General Director, Ohio Department of Commerce Office of Attorney General Division of Industrial Compliance 30 East Broad Street Bureau of Operations & Maintenance Columbus, OH 43216 6606 Tussing Road P.O. Box 4009 President, Board of County Reynoldsburg, OH 43068-9009 Commissioners of Ottawa County Port Clinton, OH 43252 Regional Administrator U.S. Nuclear Regulatory Commission President, Board of County 801 Warrenville Road Commissioners of Lucas County Lisle, IL 60523-4351 One Government Center, Suite 800 Toledo, OH 43604-6506 Resident Inspector U.S. Nuclear Regulatory Commission The Honorable Dennis J. Kucinich 5503 North State Route 2 United States House of Representatives Oak Harbor, OH 43449-9760 Washington, D.C. 20515 Barry Allen, Plant Manager The Honorable Dennis J. Kucinich FirstEnergy Nuclear Operating Company United States House of Representatives Davis-Besse Nuclear Power Station 14400 Detroit Avenue 5501 North State - Route 2 Lakewood, OH 44107 Oak Harbor, OH 43449-9760 Gary R. Leidich Dennis Clum President and Chief Nuclear Officer Radiological Assistance Section Supervisor FirstEnergy Nuclear Operating Company Bureau of Radiation Protection Mail Stop A-GO-19 Ohio Department of Health 76 South Main Street P.O. Box 118 Akron, OH 44308 Columbus, OH 43266-0118 Joseph J. Hagan Carol OClaire, Chief, Radiological Branch Senior Vice President of Operations and Ohio Emergency Management Agency Chief Operating Officer 2855 West Dublin Granville Road FirstEnergy Nuclear Operating Company Columbus, OH 43235-2206 Mail Stop A-GO-14 76 South Main Street Zack A. Clayton Akron, OH 44308 DERR Ohio Environmental Protection Agency David W. Jenkins, Attorney P.O. Box 1049 FirstEnergy Corporation Columbus, OH 43266-0149 Mail Stop A-GO-18 76 South Main Street Akron, OH 44308

Davis-Besse Nuclear Power Station, Unit 1 cc:

Danny L. Pace Senior Vice President, Fleet Engineering FirstEnergy Nuclear Operating Company Mail Stop A-GO-14 76 South Main Street Akron, OH 44308 Manager, Fleet Licensing FirstEnergy Nuclear Operating Company Mail Stop A-GHE-107 395 Ghent Road Akron, OH 44333 Manager, Site Regulatory Compliance FirstEnergy Nuclear Operating Company Davis-Besse Nuclear Power Station Mail Stop A-DB-3065 5501 North State Route 2 Oak Harbor, OH 43449-9760 Jeannie M. Rinckel Vice President, Fleet Oversight FirstEnergy Nuclear Operating Company Mail Stop A-GO-14 76 South Main Street Akron, OH 44308