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Category:Request for Additional Information (RAI)
MONTHYEARML23222A2272023-08-10010 August 2023
Request for Additional Information Traveler TSTF-592, Revision 1, Revise Automatic Depressurization System (ADS) Instrumentation Requirements
ML23010A2592023-01-11011 January 2023
Request for Additional Information Traveler TSTF-592, Revision 0, Revise Automatic Depressurization System (ADS) Instrumentation Requirements
ML22272A5542022-10-0707 October 2022
Request for Additional Information Traveler TSTF-591, Revise Risk Informed Completion Time (RICT) Program
ML22235A7382022-08-19019 August 2022
NRR E-mail Capture - Draft RAIs for TSTF-591 (L-2022-PMP-0003)
ML22193A2372022-07-12012 July 2022
Request for Additional Information TSTF-589, Eliminate Automatic Diesel Generator Start During Shutdown
ML21109A1352021-04-12012 April 2021
TSTF-576 NRC Comments on Draft Rev 1 and Draft RAI Response
ML20308A6562020-11-0606 November 2020
Request for Additional Information Traveler TSTF-577, Revision 0, Revised Frequencies for Steam Generator Tube Inspections
ML20132A1832020-05-11011 May 2020
Request for Additional Information TSTF-576, Revision 0, Revised Safety/Relief Valve Requirement
ML20065J9902020-03-0505 March 2020
March 5 2020 TSTF Quarterly Meeting Handout, Agenda Item Iiib - Generic RAIs for LARs to Adopt TSTF-505 Rict
ML19323D5342019-11-19019 November 2019
Draft RAIs TSTF-554, Revise Reactor Coolant Leakage
ML18134A0752018-05-21021 May 2018
Request for Additional Information (RAI) Technical Specifications Task Force (TSTF) Traveler TSTF-569, Revise Response Time Testing Definition
ML18127A4052018-05-0707 May 2018
Draft RAI TSTF-569, Revise Response Time Testing Definition.
ML18122A1662018-04-27027 April 2018
Draft RAIs TSTF-568, Clarify Applicability of BWR/4 TS 3.6.2.5 and TS 3.6.3.
ML18095A2292018-04-12012 April 2018
Request for Additional Information Traveler TSTF-564, Safety Limit MCPR
ML18085A0252018-03-20020 March 2018
Traveler TSTF-564, Safety Limit MCPR, Draft RAIs
ML18100A0942018-01-29029 January 2018
Draft RAIs from Apla TSTF-563, Revise Instrument Testing Definitions to Incorporate SFCP
ML16215A1252016-08-0202 August 2016
Request for Additional Information for Technical Specifications Task Force TSTF-553, Revision 0, Add Action for Two Inoperable Control Room Emergency Air Temperature Control System Trains, CAC No. MF7061
ML16028A4532016-02-23023 February 2016
Request for Additional Information TSTF-553, Add Action for Two Inoperable Creatcs (Control Room Emergency Air Temperature Control System) Trains.
ML15322A2842016-02-0404 February 2016
Request for Additional Information TSTF-537, Revision 0, Increase CIV Completion Time; Update of TSTF-373.
ML15322A2702016-01-12012 January 2016
Request for Additional Information Regarding Traveler TSTF-454, Revision 3, Extend PCIV Completion Times (NEDC-33046).
ML15293A1612015-12-0808 December 2015
Request for Additional Information (RAI) TSTF 542, Rev. 1, Reactor Pressure Vessel Water Inventory Control,
ML15281A2912015-11-18018 November 2015
Request for Additional Information Regarding TSTF-551, Revision 1, Revise Secondary Containment Surveillance Requirements.
ML15208A2872015-08-13013 August 2015
Request for Additional Information Traveler TSTF-541, Rev 0, Add Exceptions to Surveillance Requirements When the Safety Function Is Being Performed
ML15033A1082015-06-0202 June 2015
Draft Request for Additional Information Traveler TSTF-529, Revision 2, Clarify Use and Application Rules
TSTF-14-17, Technical Specification Task Force - Response to NRC Request for Additional Information Regarding TSTF-454, Revision, Extend PCIV Completion Times (NEDC-33046) and Submittal of TSTF-454, Revision 32015-03-31031 March 2015
Technical Specification Task Force - Response to NRC Request for Additional Information Regarding TSTF-454, Revision, Extend PCIV Completion Times (NEDC-33046) and Submittal of TSTF-454, Revision 3
ML15057A2482015-02-26026 February 2015
Notice of Forthcoming Public Meeting Between the U.S. Nuclear Regulatory Commission and the Technical Specifications Task Force TSTF-551
ML14310A3442014-11-0606 November 2014
Draft RAI from Srxb TSTF-547, Clarification of Rod Position Requirements.
ML14196A4142014-07-0707 July 2014
TSTF Handout from 7/10/14 Meeting TSTF Concerns with TSTF-505 RAIs
ML13045A8602013-03-0404 March 2013
Request for Additional Information Traveler TSTF-537, Revision 0, Increase CIV (Containment Isolation Valve) Completion Time; Update of TSTF-373
ML12279A2082012-10-19019 October 2012
TSTF-531 RAIs
ML12279A1342012-10-19019 October 2012
TSTF-454, Rev 2, RAIs
ML12158A5472012-06-13013 June 2012
TSTF-523 Acceptance Letter and RAIs
ML1108908172011-04-12012 April 2011
Request for Additional Information Regarding TSTF-508, Revision 1, Revise Control Room Habitability Actions to Address Lessons Learned from TSTF-448 Implementation
ML1020402322010-07-27027 July 2010
Request for Additional Information Regarding TSTF-505, Revision 0, on Risk-Informed Extended Completion Times - RITSTF Initiative 4b
ML1015304012010-07-0707 July 2010
Acceptance for Review and Request for Additional Information for TSTF-432, Revision 0, Change in Technical Specifications End States (WCAP-16294).
ML0914704322009-06-11011 June 2009
Request for Additional Information Regarding TSTF-514 on Reactor Coolant System Leakage Detection
ML0906808132009-04-17017 April 2009
Request for Additional Information Regarding TSTF-508, Revision 0, Revise Control Room Habitability Actions to Address Lessons Learned from TSTF-448 Implementation
ML0828004842008-11-0404 November 2008
Evaluation of TSTF Responses to NRC Staff Request for Additional Information (RAI) Regarding Traveler TSTF-493, Revision 2, Clarify Application of Setpoint Methodology for LSSS Functions.
ML0820406052008-08-13013 August 2008
RAI for Review of TSTF-506, Rev 0
ML0812101752008-06-0404 June 2008
Request for Additional Information Regarding TSTF-500, Rev. 0, DC Electrical Rewrite - Update to TSTF-360.
ML0810400032008-05-0505 May 2008
Request for Additional Information Regarding TSTF-501, Revision 0, Relocate Stored Fuel Oil and Lube Oil Values to Licensee Control
ML0721206302007-10-0202 October 2007
Request for Additional Information (RAI) Regarding TSTF Traveler 425, Revision 1, Relocate Surveillance Frequencies to Licensee Control - RITSTF Initiative 5.
ML0627700892006-11-0909 November 2006
Request for Additional Information Regarding TSTF-478, Revision 0, BWR Technical Specification Changes That Implement the Revised Rule for Combustible Gas Control
2023-08-10
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PRA RAI 1. Risk informed implementation of TSTF-563 TSTF-563 is changing the language in the Technical Specification Definitions regarding surveillances for Channel Calibration, Channel Functional Test, Channel Operational Test, and Trip Actuating Device Operational Test. This program will allow revision to the current surveillance requirements by allowing the licensee to adjust surveillances based on any components or group of components within the definition. This appears to change the surveillance requirement and or the process for testing channel components.
a) Summarize how component groupings will be selected such that the failure likelihood, and hence the appropriate surveillance interval, is applicable to the selected group (i.e.,
there are no unreliable components contained within a reliable group).
b) How is this change to be included within the NEI 04-10 risk-informed framework?
I. Can the effect of the proposed changes be reflected in the current approaches for modelling actuation signals in PRA? If not, how can the PRA models be adopted to measure the effect on risk to provide usable input into risk-informed decision making?
II. If the PRA cannot currently, and cannot be modified to, reflect the effect on risk, (1) justify how this proposal is consistent with risk-informed decision making and (2) explain how the acceptable changes to the interval and/or the requirements will be selected.