ML14232A674: Difference between revisions

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| document type = E-Mail, Request for Additional Information (RAI)
| document type = E-Mail, Request for Additional Information (RAI)
| page count = 2
| page count = 2
| project = TAC:MF2942, TAC:MF2943
}}
=Text=
{{#Wiki_filter: DRAFT DRAFT REQUEST FOR ADDITIONAL INFORMATION OFFICE OF NUCLEAR REACTOR REGULATION REQUEST FOR ADDITIONAL INFORMATION RELATED TO AN AMENDMENT TO ADOPT TECHNICAL SPECIFICATIONS TASK FORCE TRAVELER TSTF-425 TO RELOCATE SPECIFIC SURVEILLANCE FREQUENCIES TO A LICENSEE CONTROLLED PROGRAM BEAVER VALLEY POWER STATION - UNITS 1 AND 2 DOCKET NO. 50-344 AND 50-412  By letter dated October 18, 2013,1 as supplemented by letter dated June 26, 2014,2 FirstEnergy Nuclear Operating Company (the licensee) submitted a license amendment request for Beaver Valley Power Station (BVPS) Units 1 and 2. The proposed amendment would modify the BVPS Technical Specifications by relocating specific surveillance frequencies to a licensee controlled program with the implementation of Nuclear Energy Institute (NEI) 04-10, "Risk-Informed Technical Specifications Initiative 5b, Risk-Informed Method for Control of Surveillance Frequencies," (TSTF-425). To complete its review, the Nuclear Regulatory Commission staff requests a response to the questions below. In response to RAI 6, submitted by letter dated June 26, 2014, the licensee directed the staff to a Facts and Observations (F&O) table in their National Fire Protection Administration 805 Supplement dated on February 14, 2014.3  The tables in the supplement included all F&Os from previous peer reviews, consistent with the information in the submittal, and some focused scope peer review F&Os for Human Reliability Analysis (HRA) and Internal Flooding (IF). During the review of the IF F&Os in Table 1-4, some F&Os appear to be resolved for the Internal Events PRA (in the column BVPS-1 Final Resolution), yet kept as open for the Fire PRA model.
RAI 7: Clarify if the BVPS Units 1 and 2 F&Os from the IF focused scope peer review are considered resolved for the TSTF-425 application.
RAI 8: In addition, indicate which IF F&Os from the focused scope peer review, if any, were considered to be at Capability Category I. 
1 Agencywide Documents Access and Management System (ADAMS) Accession No. ML13295A006. 2 ADAMS Accession No. ML14177A514. 3 ADAMS Accession Number ML14051A499.
F&O HR-PR-007 states, in part, that;  Post-maintenance misalignments were excluded for normally operating system[s] based on the assumption that misalignments on normally operating systems would be quickly detected and corrected. RAI 9:  Since the standby components are important for the TSTF-425 application, please explain how the likelihood of post-maintenance misalignment for the standby components are modeled in the internal events PRA. 
}}
}}

Revision as of 03:54, 22 March 2018

Draft 2nd Round of RAIs for TSTF-425 LAR for BVPS Units 1 and 2 (TAC MF2942 and MF2943)
ML14232A674
Person / Time
Site: Beaver Valley
Issue date: 08/20/2014
From: Whited J A
Plant Licensing Branch 1
To:
Whited J A
References
TAC MF2942, TAC MF2943
Download: ML14232A674 (2)
v • d • e


Text

DRAFT DRAFT REQUEST FOR ADDITIONAL INFORMATION OFFICE OF NUCLEAR REACTOR REGULATION REQUEST FOR ADDITIONAL INFORMATION RELATED TO AN AMENDMENT TO ADOPT TECHNICAL SPECIFICATIONS TASK FORCE TRAVELER TSTF-425 TO RELOCATE SPECIFIC SURVEILLANCE FREQUENCIES TO A LICENSEE CONTROLLED PROGRAM BEAVER VALLEY POWER STATION - UNITS 1 AND 2 DOCKET NO. 50-344 AND 50-412 By letter dated October 18, 2013,1 as supplemented by letter dated June 26, 2014,2 FirstEnergy Nuclear Operating Company (the licensee) submitted a license amendment request for Beaver Valley Power Station (BVPS) Units 1 and 2. The proposed amendment would modify the BVPS Technical Specifications by relocating specific surveillance frequencies to a licensee controlled program with the implementation of Nuclear Energy Institute (NEI) 04-10, "Risk-Informed Technical Specifications Initiative 5b, Risk-Informed Method for Control of Surveillance Frequencies," (TSTF-425). To complete its review, the Nuclear Regulatory Commission staff requests a response to the questions below. In response to RAI 6, submitted by letter dated June 26, 2014, the licensee directed the staff to a Facts and Observations (F&O) table in their National Fire Protection Administration 805 Supplement dated on February 14, 2014.3 The tables in the supplement included all F&Os from previous peer reviews, consistent with the information in the submittal, and some focused scope peer review F&Os for Human Reliability Analysis (HRA) and Internal Flooding (IF). During the review of the IF F&Os in Table 1-4, some F&Os appear to be resolved for the Internal Events PRA (in the column BVPS-1 Final Resolution), yet kept as open for the Fire PRA model.

RAI 7: Clarify if the BVPS Units 1 and 2 F&Os from the IF focused scope peer review are considered resolved for the TSTF-425 application.

RAI 8: In addition, indicate which IF F&Os from the focused scope peer review, if any, were considered to be at Capability Category I.

1 Agencywide Documents Access and Management System (ADAMS) Accession No. ML13295A006. 2 ADAMS Accession No. ML14177A514. 3 ADAMS Accession Number ML14051A499.

F&O HR-PR-007 states, in part, that; Post-maintenance misalignments were excluded for normally operating system[s] based on the assumption that misalignments on normally operating systems would be quickly detected and corrected. RAI 9: Since the standby components are important for the TSTF-425 application, please explain how the likelihood of post-maintenance misalignment for the standby components are modeled in the internal events PRA.

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