Letter Sequence RAI |
|---|
|
|
MONTHYEARML1001415002010-01-14014 January 2010
Acceptance Review Email, License Amendment Request, Revise Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation, for Extension of Completion Times
Project stage: Acceptance Review
ULNRC-05694, Application for Amendment to Facility Operating License NPF-30 Completion Time Extensions for TS 3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation Functions TAC ME2822 (LDCN 09-0039)2010-04-22022 April 2010
Application for Amendment to Facility Operating License NPF-30 Completion Time Extensions for TS 3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation Functions TAC ME2822 (LDCN 09-0039)
Project stage: Request
ML1011301132010-04-23023 April 2010
Email, Request for Additional Information, License Amendment Request, Revise Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation, for Extension of Completion Times
Project stage: RAI
ULNRC-05704, Application for Amendment to Facility Operating License NPF-30 Completion Time Extension for TS 3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation Functions2010-05-14014 May 2010
Application for Amendment to Facility Operating License NPF-30 Completion Time Extension for TS 3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation Functions
Project stage: Request
ULNRC-05724, Application for Amendment to Facility Operating License NPF-30 Completion Time Extensions for TS 3.3.2 Engineered Safety Feature Actuation System Instrumentation Functions (LDCN 09-0039 Supplement)2010-08-24024 August 2010
Application for Amendment to Facility Operating License NPF-30 Completion Time Extensions for TS 3.3.2 Engineered Safety Feature Actuation System Instrumentation Functions (LDCN 09-0039 Supplement)
Project stage: Supplement
ML1025102752010-09-0707 September 2010
Request for Additional Information, Round 2, License Amendment Request, Revise Technical Specification 3.3.2, Engineered Safety Feature Actuation System Instrumentation, for Extension of Completion Times
Project stage: RAI
ML1025102702010-09-0707 September 2010
Email Request for Additional Information, Round 2, License Amendment Request, Revise Technical Specification 3.3.2, Engineered Safety Feature Actuation System Instrumentation, for Extension of Completion Times
Project stage: RAI
ULNRC-05731, Completion Time Extensions for TS 3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation Functions (LDCN 09-0039 Supplement)2010-09-29029 September 2010
Completion Time Extensions for TS 3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation Functions (LDCN 09-0039 Supplement)
Project stage: Supplement
ML1029306742010-10-20020 October 2010
Request for Additional Information, Round 3, License Amendment Request, Revise Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation, for Extension of Completion Times
Project stage: RAI
ML1029306712010-10-20020 October 2010
Email, Request for Additional Information, Round 3, License Amendment Request, Revise Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation, for Extension of Completion Times
Project stage: RAI
ML1029803692010-10-25025 October 2010
Request for Additional Information, Round 4, License Amendment Request, Revise Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation, for Extension of Completion Times
Project stage: RAI
ML1029803312010-10-25025 October 2010
Email, Request for Additional Information, Round 4, License Amendment Request, Revise Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation, for Extension of Completion Times (ME2822)
Project stage: RAI
ULNRC-05738, Application for Amendment to Facility Operating License NPF-30 Completion Time Extensions for TS3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation Functions (LDCN 09-0039)2010-11-0404 November 2010
Application for Amendment to Facility Operating License NPF-30 Completion Time Extensions for TS3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation Functions (LDCN 09-0039)
Project stage: Request
ML1030202792010-11-0505 November 2010
Notice of Meeting with Union Electric Company to Discuss Licensees Planned Responses to Staff Requests for Additional Information Related to Callaway Plants Request to Revise TS 3.3.2, ESFAS Instrumentation Functions
Project stage: RAI
ML1034701472010-12-16016 December 2010
Summary of Meeting with Union Electric Company to Discuss Licensees Planned Responses to Staff Requests for Additional Information Related to Callaway Plants Request to Revise TS 3.3.2, ESFAS Instrumentation Functions
Project stage: RAI
ML1035103132010-12-16016 December 2010
Draft TS Mark-up Provided by Licensee as Clarification of Mutual Understanding Following NRC-Licensee TS Modification Discussions at 11/18/10 Public Mtg Re CT Extensions for TS 3.3.2 License Amendment Request
Project stage: Draft Request
ML1035102982010-12-16016 December 2010
E-mail, Draft TS Mark-up Provided by Licensee as Clarification of Mutual Understanding Following NRC-Licensee TS Modification Discussions at 11/18/10 Public Mtg Re CT Extensions for TS 3.3.2 License Amendment Request
Project stage: Draft Request
ML1101204702011-01-12012 January 2011
Notice of Meeting with Union Electric Company to Discuss Licensees Planned Responses to Staff Requests for Additional Information Callaway Plants Request to Revise TS 3.3.2, ESFAS Instrumentation Functions
Project stage: RAI
ML1104001662011-02-22022 February 2011
Summary of Meeting with Union Electric Company to Discuss Licensees Planned Responses to Staff Requests for Additional Information Callaway Plants Request to Revise TS 3.3.2, ESFAS Instrumentation Functions
Project stage: RAI
ULNRC-05737, Completion Time Extensions for TS 3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation Functions, TAC No. ME2822 (LDCN 09-0039 Supplement)2011-02-23023 February 2011
Completion Time Extensions for TS 3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation Functions, TAC No. ME2822 (LDCN 09-0039 Supplement)
Project stage: Supplement
ML1105405852011-02-23023 February 2011
Annual Reporting Form for Drug and Alcohol Tests, for Period Ending 2010
Project stage: Request
ML1116805362011-07-28028 July 2011
License Amendment, Issuance of Amendment No. 201, Revise Technical Specification 3.3.2, Engineered Safety Feature Actuation System (ESFAS) Instrumentation, for Extension of Completion Times
Project stage: Approval
2010-04-23
[Table View] |
Text
REQUEST FOR ADDITIONAL INFORMATION CALLAWAY PLANT, UNION ELECTRIC COMPANY, LICENSE AMENDMENT SUPPLEMENT (LCDN 09-0039) FOR COMPLETION TIME EXTENSIONS FOR TS 3.3.2, ENGINEERED SAFETY FEATURE ACTUATION SYSTEM (ESFAS) INSTRUMENTATION FUNCTIONS TAC Number ME2822 The NRC staff requests additional information to complete its review of the license amendment request for revision of Technical Specification (TS) 3.3.2, Engineered Safety Feature System (ESFAS)
Instrumentation Function 6.g., Trip of all Main Feedwater (MFW) Pumps, Action Statement J for the Condition of One or more Main Feedwater Pumps trip channel(s) inoperable, and the unused Condition M.
On September 7, 2010, the NRC staff requested additional information (ML102510275) to inquire on the justification for the increase in Auxiliary Feedwater (AFW) unavailability from 1 to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the operational intent behind this increase, and the potential changes to the No Significant Hazards Determination. In response to this request, the licensee submitted an additional amendment request supplement dated September 29, 2010 (ML102730351). This supplement modified TS 3.3.2 Condition J and utilized unused Condition M in order to preserve the ESFAS 6.g. AFW safety function following the 1-hour CT. This supplement also asserted that no changes are required for the No Significant Hazards Determination stating that the licensees original responses remain unaffected.
Based on continued NRC staff review of the additional supplement submittal, the NRC staff has two additional questions:
NRC staff analysis of the licensees proposed modifications to TS 3.3.2 Conditions J and M revealed MFW pump trip channel inoperability combinations that are not addressed by either of the proposed conditions. This inoperability of certain combinations of MFW pump trip channels results in the unavailability of the safety function to start the AFW pumps on loss of both MFW pumps. Without a prescribed condition entry, the licensee would have to enter TS 3.0.3.
In addition, the staffs assessment of the licensees application of separate condition entry to be allowed per channel and per multiple MFW pumps in the proposed condition wording is inconsistent with the TS 3.3.2 ESFAS 6.g. function principle configuration of separate condition entry per pump.
Therefore, the staff requests:
(1) Provide justification for allowing inoperability combinations that are not addressed by either of the proposed Conditions J and M and therefore leading to TS 3.0.3 entry.
(2) Provide justification for allowing the use of separate condition entry on a per channel level and per multiple MFW pumps when the TS 3.3.2 ESFAS 6.g. function principle configuration of separate condition entry is per pump.
