|
---|
Category:Letter type:TSTF
MONTHYEARTSTF-22-07, Transmittal of TSTF-592, Revision 0, Revise Automatic Depressurization System (ADS) Instrumentation Requirements2022-07-19019 July 2022 Transmittal of TSTF-592, Revision 0, Revise Automatic Depressurization System (ADS) Instrumentation Requirements TSTF-22-06, Technical Specifications Task Force - Request for a Workshop to Discuss the Interaction of Natural Phenomena Protection Design Features and Operability2022-07-0808 July 2022 Technical Specifications Task Force - Request for a Workshop to Discuss the Interaction of Natural Phenomena Protection Design Features and Operability TSTF-22-04, Technical Specifications Task Force - Transmittal of TSTF-591, Revision 0, Revise Risk Informed Completion Time (RICT) Program2022-03-22022 March 2022 Technical Specifications Task Force - Transmittal of TSTF-591, Revision 0, Revise Risk Informed Completion Time (RICT) Program TSTF-21-03, TSTF Response to NRC Questions on TSTF-576, Revision 0, Revise Safety/Relief Valve Requirements and Submittal of Revision 12021-06-23023 June 2021 TSTF Response to NRC Questions on TSTF-576, Revision 0, Revise Safety/Relief Valve Requirements and Submittal of Revision 1 TSTF-21-01, Transmittal of TSTF-580, Revision 1, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling2021-01-26026 January 2021 Transmittal of TSTF-580, Revision 1, Provide Exception from Entering Mode 4 with No Operable RHR Shutdown Cooling TSTF-20-04, Technical Specifications Task Force - Transmittal of TSTF-577, Revision 0, Revised Frequencies for Steam Generator Tube Inspections2020-06-0808 June 2020 Technical Specifications Task Force - Transmittal of TSTF-577, Revision 0, Revised Frequencies for Steam Generator Tube Inspections TSTF-20-01, Transmittal of TSTF-IG-20-02, Guidance on Evaluating One-Time Surveillance Frequency Changes Under the Surveillance Frequency Control Program (TSTF-425M SFCP)2020-04-0909 April 2020 Transmittal of TSTF-IG-20-02, Guidance on Evaluating One-Time Surveillance Frequency Changes Under the Surveillance Frequency Control Program (TSTF-425M SFCP) TSTF-19-14, Technical Specifications Task Force - TSTF Response to NRC Questions on TSTF-582, RPV WIC Enhancements2020-02-12012 February 2020 Technical Specifications Task Force - TSTF Response to NRC Questions on TSTF-582, RPV WIC Enhancements TSTF-19-11, TSTF Response to NRC Questions on TSTF-554, Revise Reactor Coolant Leakage Requirements2020-01-16016 January 2020 TSTF Response to NRC Questions on TSTF-554, Revise Reactor Coolant Leakage Requirements TSTF-19-09, Technical Specifications Task Force - Transmittal of TSTF-576, Revision 0, Revise Safety/Relief Valve Requirements2019-12-13013 December 2019 Technical Specifications Task Force - Transmittal of TSTF-576, Revision 0, Revise Safety/Relief Valve Requirements TSTF-19-13, Technical Specifications Task Force - Updated TSTF Membership and Distribution2019-12-0303 December 2019 Technical Specifications Task Force - Updated TSTF Membership and Distribution TSTF-19-12, TSTF Comments on Draft Safety Evaluations for Traveler TSTF-541, Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position.2019-11-0505 November 2019 TSTF Comments on Draft Safety Evaluations for Traveler TSTF-541, Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position. TSTF-19-10, Transmittal of Errata Changes to TSTF-541, Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position2019-08-28028 August 2019 Transmittal of Errata Changes to TSTF-541, Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position TSTF-19-03, Request for Fee Exemption for TSTF-554, Revision 0, Revise Reactor Coolant Leakage Requirements - Letter2019-07-0808 July 2019 Request for Fee Exemption for TSTF-554, Revision 0, Revise Reactor Coolant Leakage Requirements - Letter TSTF-19-08, Draft of Traveler TSTF-582, Revision 0, RPV WIC Enhancements.2019-07-0303 July 2019 Draft of Traveler TSTF-582, Revision 0, RPV WIC Enhancements. TSTF-19-06, TSTF Comments on Draft Safety Evaluations for Traveler TSTF-569, Revision 1, Revise Response Time Testing Definition2019-06-25025 June 2019 TSTF Comments on Draft Safety Evaluations for Traveler TSTF-569, Revision 1, Revise Response Time Testing Definition TSTF-19-07, TSTF Handout for October 16, 2019, Meeting: Elimination of Commitment to Adopt TSTF-4932019-06-18018 June 2019 TSTF Handout for October 16, 2019, Meeting: Elimination of Commitment to Adopt TSTF-493 TSTF-19-05, Transmittal of TSTF-541, Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position2019-06-18018 June 2019 Transmittal of TSTF-541, Revision 2, Add Exceptions to Surveillance Requirements for Valves and Dampers Locked in the Actuated Position TSTF-19-01, TSTF Comments on Draft Safety Evaluations for Traveler TSTF-566, Revision 0, Revise Actions for Inoperable RHR Shutdown Cooling Subsystems2019-01-17017 January 2019 TSTF Comments on Draft Safety Evaluations for Traveler TSTF-566, Revision 0, Revise Actions for Inoperable RHR Shutdown Cooling Subsystems TSTF-18-13, TSTF Comments on Draft Safety Evaluation for Traveler TSTF-557, Revision 1, Spent Fuel Storage Rack Neutron Absorber Monitoring Program.2018-12-20020 December 2018 TSTF Comments on Draft Safety Evaluation for Traveler TSTF-557, Revision 1, Spent Fuel Storage Rack Neutron Absorber Monitoring Program. TSTF-18-06, TSTF Response to NRC Questions on TSTF-569, Revise Response Time Testing Definition2018-10-31031 October 2018 TSTF Response to NRC Questions on TSTF-569, Revise Response Time Testing Definition TSTF-18-12, TSTF Comments on Draft Safety Evaluation for Traveler TSTF-564, Revision 1, Safety Limit MCPR2018-10-24024 October 2018 TSTF Comments on Draft Safety Evaluation for Traveler TSTF-564, Revision 1, Safety Limit MCPR TSTF-18-11, TSTF Comments on Draft Safety Evaluation for Traveler TSTF-563, Revision 0, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program.2018-10-12012 October 2018 TSTF Comments on Draft Safety Evaluation for Traveler TSTF-563, Revision 0, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program. TSTF-18-08, Updated TSTF Membership and Distribution2018-07-17017 July 2018 Updated TSTF Membership and Distribution TSTF-18-07, TSTF Comments on Draft Safety Evaluation for Traveler TSTF-505, Provide Risk-Informed Extended Completion Times and Submittal of TSTF-505, Revision 22018-07-0202 July 2018 TSTF Comments on Draft Safety Evaluation for Traveler TSTF-505, Provide Risk-Informed Extended Completion Times and Submittal of TSTF-505, Revision 2 TSTF-18-05, TSTF Response to NRC Questions on TSTF-564, Safety Limit (Minimum Critical Power Ratio) MCPR2018-05-29029 May 2018 TSTF Response to NRC Questions on TSTF-564, Safety Limit (Minimum Critical Power Ratio) MCPR TSTF-17-19, TSTF Response to NRC Questions on TSTF-563, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program2018-04-27027 April 2018 TSTF Response to NRC Questions on TSTF-563, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program TSTF-18-04, TSTF Comments on Draft Safety Evaluation for Traveler TSTF-567, Revision 1, Add Containment Sump TS to Address GSI-191 Issues.2018-04-16016 April 2018 TSTF Comments on Draft Safety Evaluation for Traveler TSTF-567, Revision 1, Add Containment Sump TS to Address GSI-191 Issues. TSTF-18-03, Transmittal of TSTF-565, Revision 1, Revise the LCO 3.0.2 and LCO 3.0.3 Bases2018-03-30030 March 2018 Transmittal of TSTF-565, Revision 1, Revise the LCO 3.0.2 and LCO 3.0.3 Bases TSTF-18-02, Technical Specifications Task Force - Transmittal of TSTF-569, Revision 0, Revise Response Time Testing Definition.2018-02-0808 February 2018 Technical Specifications Task Force - Transmittal of TSTF-569, Revision 0, Revise Response Time Testing Definition. TSTF-17-18, Transmittal of TSTF-566, Revision 0, Revise Actions for Inoperable RHR Shutdown Cooling Subsystems.2018-01-19019 January 2018 Transmittal of TSTF-566, Revision 0, Revise Actions for Inoperable RHR Shutdown Cooling Subsystems. TSTF-18-01, Technical Specifications Task Force - Change in TSTF Traveler Invoicing2018-01-12012 January 2018 Technical Specifications Task Force - Change in TSTF Traveler Invoicing TSTF-17-17, Transmittal of TSTF-557, Revision 1, Spent Fuel Storage Rack Neutron Absorber Monitoring Program2017-12-19019 December 2017 Transmittal of TSTF-557, Revision 1, Spent Fuel Storage Rack Neutron Absorber Monitoring Program TSTF-17-16, Technical Specifications Task Force - Transmittal of TSTF-568, Clarify Applicability of BWR/4 TS 3.6.2.5 and TS 3.6.3.22017-12-19019 December 2017 Technical Specifications Task Force - Transmittal of TSTF-568, Clarify Applicability of BWR/4 TS 3.6.2.5 and TS 3.6.3.2 TSTF-17-13, Technical Specifications Task Force - Updated TSTF Membership and Distribution2017-10-30030 October 2017 Technical Specifications Task Force - Updated TSTF Membership and Distribution TSTF-17-12, Technical Specifications Task Force - Transmittal of TSTF-564, Safety Limit Mcpr.2017-08-28028 August 2017 Technical Specifications Task Force - Transmittal of TSTF-564, Safety Limit Mcpr. TSTF-17-10, TSTF Comments on Draft Safety Evaluation for Traveler TSTF-551, Revision 3, Revise Secondary Containment Surveillance Requirements.2017-08-0202 August 2017 TSTF Comments on Draft Safety Evaluation for Traveler TSTF-551, Revision 3, Revise Secondary Containment Surveillance Requirements. TSTF-17-09, TSTF Comments on Draft Safety Evaluation for Traveler TSTF-546, Revision 0, Revise APRM Channel Adjustment Surveillance Requirement.2017-07-24024 July 2017 TSTF Comments on Draft Safety Evaluation for Traveler TSTF-546, Revision 0, Revise APRM Channel Adjustment Surveillance Requirement. TSTF-17-08, Change in TSTF Traveler Invoicing2017-07-0505 July 2017 Change in TSTF Traveler Invoicing TSTF-17-07, Transmittal of TSTF-563, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program2017-05-10010 May 2017 Transmittal of TSTF-563, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program TSTF-17-06, Request to Incorporate TSTF-565, Clarify the Term Operational Convenience in the LCO 3.0.2 Bases, Into the Standard Technical Specifications2017-05-0909 May 2017 Request to Incorporate TSTF-565, Clarify the Term Operational Convenience in the LCO 3.0.2 Bases, Into the Standard Technical Specifications TSTF-17-03, Technical Specifications Task Force - Request for Fee Exemption for TSTF-567, Add Containment Sump TS to Address GSI-191 Issues.2017-03-30030 March 2017 Technical Specifications Task Force - Request for Fee Exemption for TSTF-567, Add Containment Sump TS to Address GSI-191 Issues. TSTF-17-04, Technical Specifications Task Force - Transmittal of TSTF-567, Add Containment Sump TS to Address GSI-191 Issues.2017-03-30030 March 2017 Technical Specifications Task Force - Transmittal of TSTF-567, Add Containment Sump TS to Address GSI-191 Issues. TSTF-17-05, Technical Specifications Task Force (TSTF) - Updated TSTF Membership and Distribution2017-02-23023 February 2017 Technical Specifications Task Force (TSTF) - Updated TSTF Membership and Distribution TSTF-16-11, Response to NRC Request for Additional Information Regarding TSTF-546, Revision 0, Revise APRM Channel Adjustment Surveillance Requirement.2017-02-0202 February 2017 Response to NRC Request for Additional Information Regarding TSTF-546, Revision 0, Revise APRM Channel Adjustment Surveillance Requirement. TSTF-17-02, Technical Specifications Task Force - Request for NRC to Withdraw November 7, 2013 Letter to TSTF Concerning TSTF-51, TSTF-286, and TSTF-4712017-02-0202 February 2017 Technical Specifications Task Force - Request for NRC to Withdraw November 7, 2013 Letter to TSTF Concerning TSTF-51, TSTF-286, and TSTF-471 TSTF-17-01, TSTF Draft Response to NRC Questions on TSTF-505, Provide Risk-Informed Extended Completion Times for 02/16/2017 Public Meeting2017-01-31031 January 2017 TSTF Draft Response to NRC Questions on TSTF-505, Provide Risk-Informed Extended Completion Times for 02/16/2017 Public Meeting TSTF-16-12, Technical Specifications Task Force - Updated TSTF Membership and Distribution2016-11-18018 November 2016 Technical Specifications Task Force - Updated TSTF Membership and Distribution TSTF-16-10, TSTF Comments on Draft Safety Evaluation for Traveler TSTF-542, Revision 2, Reactor Pressure Vessel Water Inventory Control, and Transmittal of Editorial Corrections to TSTF-542, Revision 22016-11-0202 November 2016 TSTF Comments on Draft Safety Evaluation for Traveler TSTF-542, Revision 2, Reactor Pressure Vessel Water Inventory Control, and Transmittal of Editorial Corrections to TSTF-542, Revision 2 TSTF-16-08, Withdrawal of TSTF-553, Revision 0, Add Action for Two Inoperable Creatcs Trains.2016-10-13013 October 2016 Withdrawal of TSTF-553, Revision 0, Add Action for Two Inoperable Creatcs Trains. 2022-07-08
[Table view] |
Text
TSI TSTFr TECHNICAL SPECIFICATIONS TASK FORCE A JOLNT 0W72)\[RS o'? OtIRZP A CV17-TY July 5, 2011 TSTF- 11-09 PROJ0753 Attn: Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555-0001
SUBJECT:
Request to Revise Part 9900 Technical Guidance, "Operability Determinations
& Functionality Assessments for Resolution of Degraded or Nonconforming Conditions Adverse to Quality or Safety" On August 3, 2004, the NRC published a draft revision to NRC Inspection Manual Chapter (IMC) 9900, "Technical Guidance, Operability Determinations and Resolution of Nonconformances of Structures, Systems, and Components." Following issuance of the draft IMC, representatives of licensees and the NRC met to discuss comments.
These comments were incorporated into Regulatory Issue Summary (RIS) 2005-20, "Revision to Guidance Formerly Contained in NRC Generic Letter 91-18, 'Information to Licensees Regarding Two NRC Inspection Manual Sections on Resolution of Degraded and Nonconforming Conditions and on Operability"'
which was issued on September 26, 2005. NRC and Industry continued to meet to further improve RIS 2005-20, resulting in Revision 1 being issued on April 16, 2008. Revision 1 revised the guidance to clarify operability determinations involving American Society of Mechanical Engineers (AMSE) Code Class 2 and 3 piping.The industry has identified a significant inaccuracy in the Part 9900 Technical Guidance document.
Specifically, the Part 9900 Technical Guidance definitions for "specified function" and "specified safety function" are reversed between from the usage in the guidance document and from the usage in the Improved Technical Specifications definition of "Operability." The determination of Operability is the central principle in the proper use of Technical Specifications.
The Part 9900 guidance on Operability determinations is used by the NRC and the industry as a description of an acceptable process. The industry has addressed the inconsistencies in the definitions in training.
However, we believe it is important that the document be revised to be internally consistent.
Therefore, we request that the NRC revise the definitions of "specified function" and "specified safety function" in the Part 9900 technical guidance in accordance with the enclosure.
4 t~iL 11921 Rockville Pike, Suite 100, Rockville, MD 20852 Phone: 301-984-4400, Fax: 301-984-7600 Administration by EXCEL Services Corporation PWROG S OWNERS' GROUP Owners G° TSTF 11-09 July 5, 2011 Page 2 Should you wish to discuss this further, please contact us.Nonrm nJ. Stringfellow (PWROG/W)iJ. Seelmaon PR e William J. Steelman (PWROG/CE)
Roy A. Browning (BWROG)Wendy E. roft (PWROG/B&W) cc: Frederick Brown, Director, Division of Inspection and Regional Support, NRC Robert Elliott, Technical Specifications Branch, NRC Michelle Honcharik, Special Projects Branch, NRC Enclosure Enclosure Recommended Revision to NRC Inspection Manual Chapter (IMC) 9900, "Technical Guidance, Operability Determinations and Resolution of Nonconformances of Structures, Systems, and Components" During the development of the Part 9900 guidance in 2005, the industry and the NRC spent considerable time ensuring that the phrases "specified function" and "specified safety function" were used correctly throughout the document.
In the last draft' reviewed by the industry and discussed in meetings held May 10th-12th, 2005, these terms were agreed on and defined as follows: "3.6 Functions This section differentiates the terms "specified function" (SF), "specified safety function" (SSF), and "necessary and required support function." 3.6.1 Specified Function A SF is a function performed by a SSC in the CLB. SFs are the-functions the SSC was designed to accomplish, as described in the UFSAR and other CLB documents.
3.6.2 Specified
Safety Function The definition of operability states in part that "an SSC shall be OPERABLE or have OPERABILITY when it is capable of performing its specified safety function(s)." Specified safety functions (SSF) are a subset of the set of SFs. In the context of this manual chapter, a SSF is a function performed by a SSC described in TS. Note that not all functions of TS SSCs are considered SSFs. For each licensee, the plant-specific SSF scope derives from information relied on by the licensee and the NRC when the TS were prepared, submitted, reviewed, and approved.
The SSC scope is intended to address design-basis events. For some plants, additional events beyond the scope of design-basis events (such as station blackout and ATWS), may have been included when the plant-specific SSF scope was established.
SSC specified safety functions(s) are usually stated in the Bases of the TS and the plant UFSAR. The primary sources for deciding whether a specified function is a specified safety function are the application and supplements submitted by the licensee and the requests for additional information and safety evaluations prepared by the NRC in the development of the TS.2" However, after the May 2005 meetings, the NRC decided to utilize the definitions in the existing Generic Letter 91-18 guidance and issued the Part 9900 guidance as final without additional industry input. The final version of the Part 9900 guidance states: "Specified Function/Specified Safety Function:
The specified function(s) of the system, subsystem, train, component, or device (hereafter referred to as system) is that specified safety function(s) in the CLB for the facility.
In addition to providing the specified safety function, a system is expected to perform as designed, tested and maintained.
When system capability is degraded to a point where it cannot perform with reasonable expectation or reliability, the system should be judged inoperable, even if at this instantaneous point in time the system could provide the specified safety function."'ADAMS Accession Number ML051520361, June 1, 2005.2 ADAMS Accession Number ML051520373, June 1, 2005.
Enclosure Recommended Revision to NRC Inspection Manual Chapter (IMC) 9900, "Technical Guidance, Operability Determinations and Resolution of Nonconformances of Structures, Systems, and Components" The Generic Letter 91-18 guidance used the terms "specified function" and "specified safety function" from the definition of Operability in use before the issuance of the Improved Standard Technical Specifications (ISTS) in 1992. In that definition, the terms "specified function" and"specified safety function" were reversed firom the usage in the ISTS definition, which was the definition used when developing the Part 9900 technical guidance.
As a result, the definitions used in the published Part 9900 guidance are inconsistent with the use of the terms throughout the rest of the document.The definitions from the May 2005 meeting are consistent with the usage of the terms throughout the guidance document and also add needed clarify to the terms. The definitions will assist the NRC and licensees in identifying those features of an SSC that are necessary for the Operability of a system by identifying the plant-specific licensing basis to be considered.
The definitions are consistent with the content of Technical Specifications described in 10 CFR 50.36 and the NRC's Final Policy Statement on Technical Specifications Improvements at Nuclear Power Plants.Therefore we recommend the definitions of Specified Function and Specified Safety Function be changed to those shown above and as stated in the June 1, 2005 NRC draft (ML051520373).