ML041980045

Draft Request for Additional Information

ML041980045
Person / Time
Site:	Seabrook
Issue date:	07/15/2004
From:	Scott Wall NRC/NRR/DLPM/LPD1
To:	Clifford J NRC/NRR/DLPM/LPD1
Wall, S. NRR/DLPM 415-2855
References
TAC MC0635
Download: ML041980045 (3)

Text

July 15, 2004 MEMORANDUM TO: James W. Clifford, Chief, Section 2 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation FROM: Scott P. Wall, Project Manager, Section 2 /RA/

Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation

SUBJECT:

SEABROOK STATION, DRAFT REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MC0635)

The attached draft request for information (RAI) was transmitted on July 15, 2004, to Mr. Michael OKeefe of FPL Energy Seabrook, LLC (FPLES or the licensee). This draft RAI was transmitted to facilitate the technical review being conducted by NRR and to support a conference call with the licensee to discuss the RAI.

This RAI is related to the licensees amendment request for Seabrook Station (Seabrook) dated August 25, 2003. The proposed amendment would revise Seabrooks Technical Specifications for Allowed Outage Time for Emergency Diesel Generator after the installation of a Supplemental Emergency Power Supply.

Docket No. 50-443

Attachment:

RAI

July 15, 2004 MEMORANDUM TO: James W. Clifford, Chief, Section 2 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation FROM: Scott P. Wall, Project Manager, Section 2 /RA/

Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation

SUBJECT:

SEABROOK STATION, DRAFT REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MC0635)

The attached draft request for information (RAI) was transmitted on July 15, 2004, to Mr. Michael OKeefe of FPL Energy Seabrook, LLC (FPLES or the licensee). This draft RAI was transmitted to facilitate the technical review being conducted by NRR and to support a conference call with the licensee to discuss the RAI.

This RAI is related to the licensees amendment request for Seabrook Station (Seabrook) dated August 25, 2003. The proposed amendment would revise Seabrooks Technical Specifications for Allowed Outage Time for Emergency Diesel Generator after the installation of a Supplemental Emergency Power Supply.

Docket No. 50-443

Attachment:

RAI DISTRIBUTION PUBLIC PDI-2 Reading JClifford SWall ACCESSION NO.: ML041980045 OFFICE PDI-2/PM NAME SWall DATE 7/15/04 OFFICIAL RECORD COPY

REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE SUPPLEMENTAL EMERGENCY POWER SYSTEM SEABROOK STATION DOCKET NO. 50-443 TAC NO. MC0635 By letter dated August 25, 2003, FPL Energy Seabrook, LLC (FPLES or the licensee) submitted an amendment request for Seabrook. The proposed amendment would revise Seabrooks Technical Specifications for Allowed Outage Time for Emergency Diesel Generators (EDGs) after the installation of a Supplemental Emergency Power Supply (SEPS).

The U.S. Nuclear Regulatory Commission (NRC) staff has reviewed the information the licensee provided that supports the proposed amendment and requests the following additional information to clarify the submittal:

1. In the August 25, 2003, submittal, FPLES identified common cause failure probability between SEPS and the EDG was not modeled. Provide additional basis for this assumption. For example, what assurance is there that separate maintenance crews would be used?

2. FPLES stated that frequent use of the extended AOT would also becomes evident through the "Emergency AC Power" NRC Performance Indicator crossing the threshold from "Green" to "White". How many entries would result in the indicator change?

3. Discuss the SEPS design criteria as it relates to the Seabrook Severe Accident Management Guidelines (SAMGs).

Attachment