Letter Sequence RAI |
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TAC:ME9764, Clarify Application of Setpoint Methodology for LSSS Functions (Approved, Closed) |
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MONTHYEARGNRO-2012/00096, License Amendment Request for Implementing a 24-Month Fuel Cycle, Grand Gulf Nuclear Station, Unit 12012-10-0202 October 2012
License Amendment Request for Implementing a 24-Month Fuel Cycle, Grand Gulf Nuclear Station, Unit 1
Project stage: Request
ML12289A1582012-10-15015 October 2012
Acceptance Review Email, License Amendment Request to Revise Technical Specifications and Surveillance Requirements to Support Operation with a 24-Month Fuel Cycle in Accordance with Generic Letter 91-04
Project stage: Acceptance Review
ML13077A3662013-03-18018 March 2013
Email, Request for Additional Information, License Amendment Request to Revise Technical Specifications and Surveillance Requirements to Support Operation with a 24-Month Fuel Cycle in Accordance with Generic Letter 91-04
Project stage: RAI
GNRO-2013/00023, Supplement to the License Amendment Request for Implementing a 24-Month Fuel Cycle2013-04-26026 April 2013
Supplement to the License Amendment Request for Implementing a 24-Month Fuel Cycle
Project stage: Supplement
ML13121A3912013-05-0101 May 2013
Email, Request for Additional Information, Round 2, Request to Revise Technical Specifications and Surveillance Requirements to Support Operation with a 24-Month Fuel Cycle in Accordance with Generic Letter 91-04
Project stage: RAI
GNRO-2013/00038, Response to Request for Additional Information Regarding 18 to 24 Month License Amendment Request (TAC ME9764) Dated May 1, 20132013-06-0404 June 2013
Response to Request for Additional Information Regarding 18 to 24 Month License Amendment Request (TAC ME9764) Dated May 1, 2013
Project stage: Response to RAI
ML13171A2252013-06-20020 June 2013
Email, Audit Plan for 6/24/13 Audit for Review of Calculations in Support of Amendment Request to Revise Technical Specifications and Surveillance Requirements for Operation with a 24-Month Fuel Cycle in Accordance with GL 91-04
Project stage: Other
GNRO-2013/00058, Response to NRC Regulatory Issue Summary 2013-06, Preparation and Scheduling of Operator Licensing Examinations2013-08-14014 August 2013
Response to NRC Regulatory Issue Summary 2013-06, Preparation and Scheduling of Operator Licensing Examinations
Project stage: Request
GNRO-2013/00024, Response to Request for Additional Information Re 18 to 24 Month License Amendment Request, Dated March 18, 20132013-08-15015 August 2013
Response to Request for Additional Information Re 18 to 24 Month License Amendment Request, Dated March 18, 2013
Project stage: Response to RAI
ML13260A0062013-09-16016 September 2013
Email, Request for Additional Information, Round 3, Request to Revise Technical Specifications and Surveillance Requirements to Support Operation with a 24-Month Fuel Cycle in Accordance with Generic Letter 91-04
Project stage: RAI
GNRO-2013/00076, Supplemental Information to Clarify License Amendment Request for Implementing a 24-Month Fuel Cycle at Grand Gulf Nuclear Station, Unit 12013-09-24024 September 2013
Supplemental Information to Clarify License Amendment Request for Implementing a 24-Month Fuel Cycle at Grand Gulf Nuclear Station, Unit 1
Project stage: Supplement
ML13323A5512013-10-0808 October 2013
Attachment 2 to GNRO-2013/00088, JC-Q1B21-N678-1 Rev. 2 Reactor Steam Dome Pressure Scram Setpoint
Project stage: Other
ML13323A5522013-10-14014 October 2013
Attachment 3 to GNRO-2013/00088, JC-Q1B21-N681-1 Rev. 1 Reactor Pressure Vessel Level One Setpoint Calculation
Project stage: Other
GNRO-2013/00074, Response to Electronic Request for Additional Information Regarding 18 to 24 Month License Amendment Request, Dated September 16, 20132013-10-14014 October 2013
Response to Electronic Request for Additional Information Regarding 18 to 24 Month License Amendment Request, Dated September 16, 2013
Project stage: Request
ML13323A5532013-10-29029 October 2013
Attachment 4 to GNRO-2013/00088, JC-Q1B21-N694-1 Rev. 1 Drywell High Pressure RCIC Isolation Setpoint Calculation
Project stage: Other
ML13323A5542013-11-0404 November 2013
Attachment 5 to GNRO-2013/00088, EN-IC-S-022-G Rev. 0 Instrument Performance Monitoring and Drift Trending Analysis
Project stage: Other
ML13323A5502013-11-0808 November 2013
Attachment 1 to GNRO-2013/00088 JC-Q1P81-90024 Rev. 3 Division III Degraded Bus Voltage Setpoint
Project stage: Other
GNRO-2013/00088, Supplemental Response to Request for Additional Information Regarding 18 to 24 Month Fuel Cycle License Amendment Request (TAC ME9764), Dated May 1, 20132013-11-12012 November 2013
Supplemental Response to Request for Additional Information Regarding 18 to 24 Month Fuel Cycle License Amendment Request (TAC ME9764), Dated May 1, 2013
Project stage: Supplement
GNRO-2013/00094, Supplement to License Amendment Request for Implementing a 24-Month Fuel Cycle2013-12-0505 December 2013
Supplement to License Amendment Request for Implementing a 24-Month Fuel Cycle
Project stage: Supplement
GNRO-2013/00097, Request to Withdraw Supplement to the License Amendment Request for Implementing a 24-Month Fuel Cycle2013-12-11011 December 2013
Request to Withdraw Supplement to the License Amendment Request for Implementing a 24-Month Fuel Cycle
Project stage: Supplement
ML13343A1092013-12-26026 December 2013
Issuance of Amendment No. 197, Revise Technical Specifications and Surveillance Requirements to Support Operation with 24-Month Fuel Cycle in Accordance with Generic Letter 91-04
Project stage: Approval
2013-12-26
[Table View] |
Text
1 Burkhardt, Janet From:
Wang, Alan Sent:
Monday, September 16, 2013 4:38 PM To:
Robinson, Christopher Cc:
Burkhardt, Janet
Subject:
Grand Gulf Nuclear Station Request for Additional Information Regarding 18 to 24 Month License Amendment Request (TAC ME9764)
Jeff and Chris, By letter dated October 2, 2012 (Agencywide Documents Access and Management System (ADAMS)
Accession No. ML12277A080), as supplemented by letter dated August 15th, 2013, Entergy Operations, Inc.
(the licensee) submitted a license amendment request (LAR) to amend the technical specifications (TS) of Grand Gulf Nuclear Station (GNNS), Unit 1. The LAR proposes to extend certain 18-month TS surveillance requirement (SR) frequency to 24-months SR frequency to accommodate a 24-month fuel cycle.
The NRC staff has determined that additional information is needed to complete our review of this request. The following request for additional information (RAIs) are related to your letter dated August 15th, 2013:
- 1. In response to the RAI number 2a, you stated the lack of failures in any other battery charger indicated that this was not a generically repetitive or common mode failure. Additionally, you stated the fact that no other charger exhibited similar failures indicated that there was no time-based failure mechanism.
Please confirm whether the battery charger 1A4 is tracked under the maintenance rule program. Discuss the corrective actions taken to prevent the failure of the battery charger 1A4 current limit amperes or minimize the probability of occurrence of that failure.
- 2. In response to the RAI number 3a you stated: The reference to SR 3.8.4.3 was a typographical error.
The intent of the statement was to perform the SR 3.8.4.8 performance discharge test, or a modified performance discharge test at the 30 month interval rather than the service test at the 18-month interval.
The NRC staff notes that the licensee did not request a change to the frequency of SR 3.8.4.8 and the statement in Attachment 5, Section 3.8.4 of the LAR is related to the licensees commitments to RG 1.32, RG 1.129, and IEEE-450 that recommend the battery service test (SR 3.8.4.7) to be performed during refueling operations or at some other outage with intervals between tests not to exceed 18 months.
- a. Confirm that the correct SR in the statement is SR 3.8.4.7 and provide the complete regulatory commitment statement with the correct reference.
- b. Update the TS bases to reflect that the change to 24 months is made in accordance with the GL 91-04 and is approved in the safety evaluation that will be issued.
- 3. In response to the RAI number 4a you stated: The 25% grace period and the 1.25 times interval in SR 3.0.2 refer to the same time interval, and allow for a margin for surveillance performance when required by plant operating conditions. This margin allows the plant to optimize fuel use during reactor coast
2 down, and gives the plant the option to not shutdown the reactor to complete surveillance within the defined frequency when the mode requirement is 3, 4 or 5.
Clarify how Entergy will perform the SRs for mode requirements 3, 4, and 5, 1) after the refueling/outage period when SR 3.0.2 applies to these SRs and 2) after the 30 month-extended period if these SRs are missed.
These RAIs were discussed with Mr. Christopher Robinson on September 16, 2013, and it was agreed that a response would be provided within 30 days of receipt of this email. If circumstances result in the need to revise the requested response date, please contact me at (301) 415-1445 or via e-mail at Alan.Wang@nrc.gov.
Alan Wang Project Manager (Grand Gulf Nuclear Station)
Nuclear Regulatory Commission Division of Operating Reactor Licensing Alan.Wang@NRC.gov Tel: (301) 415-1445 Fax: (301) 415-1222
