ML060240338
| ML060240338 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 02/16/2006 |
| From: | Geoffrey Miller Plant Licensing Branch III-2 |
| To: | St.Pierre G Florida Power & Light Energy Seabrook |
| Miller G, NRR/DLPM, 415-2481 | |
| References | |
| TAC MC9165 | |
| Download: ML060240338 (5) | |
Text
February 16, 2006 Mr. Gene F. St. Pierre, Site Vice President c/o James M. Peschel Seabrook Station FPL Energy Seabrook, LLC PO Box 300 Seabrook, NH 03874
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO INCREASE TECHNICAL SPECIFICATION 3.8.3.1, ?ONSITE POWER DISTRIBUTION, VITAL INVERTER ALLOWED OUTAGE TIME (TAC NO. MC9165)
Dear Mr. St. Pierre:
By letter dated December 6, 2005, FPL Energy Seabrook, LLC submitted license amendment request (LAR) 05-11. The LAR requested to revise Technical Specification 3.8.3.1, ?Onsite Power Distribution, to extend the allowed outage time for the two balance-of-plant vital inverters from 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to 7 days.
The Nuclear Regulatory Commission staff has been reviewing the submittal and has determined that additional information is needed to complete its review. These questions were discussed with Mr. Michael OKeefe of your staff on February 6, 2006. A response to this request for additional information (RAI) is requested to be provided within 45 days. If you need additional time to respond to these questions, please let me know.
Sincerely,
/RA/
G. Edward Miller, Project Manager Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-443
Enclosure:
RAI cc w/encl: See next page
February 16, 2006 Mr. Gene F. St. Pierre, Site Vice President c/o James M. Peschel Seabrook Station FPL Energy Seabrook, LLC PO Box 300 Seabrook, NH 03874
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING LICENSE AMENDMENT REQUEST TO INCREASE TECHNICAL SPECIFICATION 3.8.3.1, ?ONSITE POWER DISTRIBUTION, VITAL INVERTER ALLOWED OUTAGE TIME (TAC NO. MC9165)
Dear Mr. St. Pierre:
By letter dated December 6, 2005, FPL Energy Seabrook, LLC submitted license amendment request (LAR) 05-11. The LAR requested to revise Technical Specification 3.8.3.1, ?Onsite Power Distribution, to extend the allowed outage time for the two balance-of-plant vital inverters from 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to 7 days.
The Nuclear Regulatory Commission staff has been reviewing the submittal and has determined that additional information is needed to complete its review. These questions were discussed with Mr. Michael OKeefe of your staff on February 6, 2006. A response to this request for additional information (RAI) is requested to be provided within 45 days. If you need additional time to respond to these questions, please let me know.
Sincerely,
/RA/
G. Edward Miller, Project Manager Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-443
Enclosure:
RAI cc w/encl: See next page DISTRIBUTION:
PUBLIC RidsNrrDorlLplb RidsNrrPMGMiller RidsOgcMailCenter LPL1-2 R/F RidsNrrLACRaynor RidsAcrsAcnwMailCenter DNguyen RidsNrrDeEeeb Accession Number: ML060240338 OFFICE LPL1-2/PM LPL1-2/LA DE/EEEB/BC LPL1-2/BC NAME GEMiller:em CRaynor RJenkins DRoberts DATE 2/8/06 2/7/06 1/19/06 2/16/06 Official Record Copy
Enclosure REQUEST FOR ADDITIONAL INFORMATION REVISION TO TECHNICAL SPECIFICATION 3.8.3.1, ?ONSITE POWER DISTRIBUTION FPL ENERGY SEABROOK, LLC SEABROOK STATION DOCKET NO. 50-443 By letter dated December 6, 2005, FPL Energy Seabrook, LLC (FPLE) submitted license amendment request (LAR) 05-11. The LAR requested to revise the Seabrook Station, Unit No. 1 (Seabrook) Technical Specification (TS) 3.8.3.1, ?Onsite Power Distribution, to extend the allowed outage time for the two balance-of-plant vital inverters from 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to 7 days.
The Nuclear Regulatory Commission staff has been reviewing the submittal and has determined that the following additional information is needed to complete its review with respect to instrumentation and controls.
1.
With a longer allowed outage time for vital bus inverters associated with 120-volt (V) alternating current (ac) instrument buses 1E and 1F, provide any compensatory measures that would be taken before and during the time the instrument bus inverter is removed for an extended outage. For any compensatory measure, identify how those actions will be documented and controlled at Seabrook.
2.
When an inverter is taken out for service, and upon a loss-of-offsite power (LOOP) or LOOP/loss-of-coolant accident (LOCA) event, the 120-V ac instrument bus that is being powered by its maintenance power supply will lose its power for ten seconds until the associated emergency diesel generator (EDG) re-energizes the bus.
a.
Provide an evaluation of the effects of a short-term loss of power to the 120-V ac instrument panels (EDE-PP-IF, EDE-PP-IIF, EDE-PP-IE, and EDE-PP-IIE) in terms of inadvertent equipment operation and required contingency operator actions. Also, provide an evaluation of the effects of a short-term loss of power caused by a LOOP or LOOP/LOCA and a subsequent restoration of power to the motor control centers by the EDG.
b.
Provide the plant procedure references for these contingency actions.
3.
As stated in Regulatory Guide 1.177, ?An Approach for Plant-Specific, Risk-Informed Decision Making Technical Specification, a TS change may be requested to reduce unnecessary burdens in complying with current TS requirements, based on the operating history of the plant or the industry in general. Provide maintenance (e.g., time to repair and test) and operating (e.g., maintenance power supply and inverter failure rates) data to support the extended outage time.
Seabrook Station, Unit No. 1 cc:
Mr. J. A. Stall Senior Vice President, Nuclear and Chief Nuclear Officer Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. Peter Brann Assistant Attorney General State House, Station #6 Augusta, ME 04333 Resident Inspector U.S. Nuclear Regulatory Commission Seabrook Nuclear Power Station P.O. Box 1149 Seabrook, NH 03874 Town of Exeter 10 Front Street Exeter, NH 03823 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Office of the Attorney General One Ashburton Place, 20th Floor Boston, MA 02108 Board of Selectmen Town of Amesbury Town Hall Amesbury, MA 01913 Ms. Deborah Bell Federal Emergency Management Agency Region I J.W. McCormack P.O. &
Courthouse Building, Room 401 Boston, MA 02109 Mr. Tom Crimmins Polestar Applied Technology One First Street, Suite 4 Los Altos, CA 94019 Mr. Stephen McGrail, Director ATTN: James Muckerheide Massachusetts Emergency Management Agency 400 Worcester Road Framingham, MA 01702-5399 Philip T. McLaughlin, Attorney General Steven M. Houran, Deputy Attorney General 33 Capitol Street Concord, NH 03301 Mr. Bruce Cheney, Director New Hampshire Office of Emergency Management State Office Park South 107 Pleasant Street Concord, NH 03301 Mr. M. S. Ross, Managing Attorney Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Mr. Rajiv S. Kundalkar Vice President - Nuclear Engineering Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 James M. Peschel Regulatory Programs Manager Seabrook Station FPL Energy Seabrook, LLC PO Box 300 Seabrook, NH 03874
Seabrook Station, Unit No. 1 cc:
David Moore Vice President, Nuclear Operations Support Florida Power & Light Company P.O. Box 14000 Juno Beach, FL 33408-0420 Marjan Mashhadi Senior Attorney Florida Power & Light Company 801 Pennsylvania Ave., NW Suite 220 Washington, DC 20004