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Category:Memoranda
MONTHYEARML22147A0932022-06-0606 June 2022
2021 Annual Assessment Public Meeting Summary
ML22034A3932022-02-16016 February 2022
Calendar Year 2021 Security Baseline Completion Memo
ML21216A2002021-08-11011 August 2021
Summary of Public Webinar with Ameren Missouri to Discuss the Nuclear Regulatory Commission 2020 Annual Assessment of Callaway Plant Docket No. 50-483
ML21111A0372021-05-0303 May 2021
Inspection Manual Chapter 0375 Recommendation for Callaway Plant
ML18173A0082018-06-20020 June 2018
Cancelling Numerous Inspection Report Numbers
ML17170A3202017-06-20020 June 2017
Safety Evaluation Input - for Ameren Missouri Request to Amend Callaway Plant, Unit 1, Technical Specification 5.6.5, Core Operating Limits Report -
ML16197A0102016-08-22022 August 2016
Staff Observations of Testing for Generic Safety Issue 191 During a June 28 to June 30, 2016 Trip to the Alden Test Facility for Performance Contracting Inc. Strainer Tests
ML16091A1522016-03-31031 March 2016
Request to Review and Update Guidance in National Fire Protection Association (NFPA) 805 Frequently Asked Question (FAQ) 07-0040
ML15139A4842015-06-0202 June 2015
Staff Review of Callaway Plant Unit 1 Physical Security Plan Revision 12 for the Verification of ASM (EA-13-237) Incorporation (TAC No. L25009)
ML14310A8362015-02-0909 February 2015
NRC Staff Evaluation of Final Rule for Continued Storage of Spent Nuclear Fuel for the License Renewal Environmental Review for Callaway, Unit 1
ML14177A5952014-07-0808 July 2014
Summary of Telephone Conference Call Held on February 12, 2014, Between the U.S. Nuclear Regulatory Commission and Union Electric Company (Ameren Missouri), Concerning Requests for Additional Information Pertaining to the Callaway Plant, Un
ML14183A0212014-07-0101 July 2014
License Renewal Application
ML14121A5532014-06-18018 June 2014
November 25, 2013, Summary of Telephone Conference Call Held Between NRC and Union Electric Co., (Ameren Missouri), Concerning Requests for Additional Information Pertaining to Callaway, Unit 1, License Renewal Application
ML14121A1062014-05-12012 May 2014
Advisory Committee on Reactor Safeguards Review of the Callaway Nuclear Plant License Renewal Application - Safety Evaluation Report
ML14112A2762014-05-0707 May 2014
Summary of Public Meetings to Discuss Draft Supplement 51 to the Generic Environmental Impact Statement for License Renewal of Nuclear Plants Regarding Callaway Plant, Unit 1
ML14104A8932014-04-23023 April 2014
U.S. Nuclear Regulatory Commission Staff'S Spot- Check Review of Ameren Missouri'S 100 Percent Ownership Interest in Callaway Energy Center, Docket No. 50-483, on April 8, 2014- Finding of No Potential Issue
ML14087A2102014-04-0808 April 2014
Summary of 3/25/14 Verbal Relief Telephone Conference, Relief Request I3R-16, Temporary Non-Code Repair of the Train a Component Cooling Water Heat Exchanger to Control ESW Leakage, Third 10-Year Inservice Inspection Interval
ML14035A5752014-03-25025 March 2014
January 28, 2014, Summary of Telephone Conference Call Held Between NRC and Union Electric Company (Ameren Missouri), Pertaining to the Callaway Plant Unit 1, LRA
ML13246A3072013-09-0909 September 2013
Memorandum to File - Verbal Authorization of Relief Request PR-07, Testing Frequency for Pumps and Valves, Third 10-year Inservice Testing Interval
ML13126A3202013-05-0707 May 2013
Summary of Telephone Conference, Verbal Authorization of Relief Request I3R-14. Proposed Alternative to ASME Code Requirements for Leakage Testing of RPV Head Flange Leakoff Lines, Third 10-Year ISI Interval.
ML13059A8002013-03-11011 March 2013
Summary of Telephone Call Held on 11/5/12, Between NRC and Union Electric Company, Regarding Request for Clarification of Responses to the SAMA RAI Concerning Callaway Plant, Unit 1, LRA
ML12298A4282012-10-26026 October 2012
Notice of Preapplication Meeting with Union Electric Company to Discuss Callaway Plant, Unit 1, License Amendment Request to Change Licensing Basis and Analysis of Integrated Head Assembly Consistent with Regulatory Guide 1.61 Revision 1
ML12292A1212012-10-22022 October 2012
Updated ETE Quarterly Report for Q4 2012
ML12262A3112012-10-0202 October 2012
Summary of Telephone Conference Call Held on September 14, 2012, Between NRC and Union Electric Company, Concerning the SAMA RAI for the Callaway Plant, Unit 1, LRA
ML12234A5232012-08-24024 August 2012
Quarterly Report of Activity Related to Updated Evacuation Time Estimates
ML12227A3472012-08-14014 August 2012
8/29/2012 Notice of Preapplication Meeting with Union Electric Company to Discuss Request for New Technical Specification Related to Class 1E Electrical Equipment Air Conditioning System at Callaway Plant, Unit 1
ML12227A3492012-08-14014 August 2012
8/29/2012 Notice of Preapplication Meeting with Union Electric Company to Discuss Request to Revise Technical Specification 3.7.9, Ultimate Heat Sink SR 3.7.9.1 and 3.7.9.2 at Callaway Plant, Unit 1
ML12167A5082012-06-15015 June 2012
Letter to the Honorable Jeannette Mott Oxford Related to the 10/21/2003, Shutdown at Callaway Plant
ML1211502472012-05-0303 May 2012
Memo to File, Verbal Authorization, Relief Request VR-01 from Requirements of ASME OM Code Mandatory Appendix I, One-time Extension Replacement of Main Steam Isolation Valve Actuator Rupture Disks
ML12089A0992012-04-11011 April 2012
Summary of Public Scoping Meetings Conducted Related to the Review of the Callaway Plant, Unit 1 License Renewal Application
ML12041A4792012-02-24024 February 2012
03/14/2012-Notice of Forthcoming Meeting to Discuss the License Renewal Process and Environmental Scoping for Callaway Plant, Unit 1
ML12027A0202012-01-27027 January 2012
Acceptance of License Renewal Application, Callaway Plant Unit 1
ML1200300872011-12-29029 December 2011
Forthcoming Meeting with Petitioner Requesting Action Under 10 CFR 2.206 Regarding Blocking P-4/Low Tavg Feedwater Isolation Signal at Callaway Plant, Unit 1
ML1136304032011-12-29029 December 2011
Correction Notice of Forthcoming Meeting with Petitioner Requesting Action Under 10 CFR 2.206
ML1131200872011-11-16016 November 2011
Verbal Authorization Memorandum, Relief Request 13R-13, Alternative to Requirements for Performance of Second Successive Exam of C Cold Leg Safe-End to Elbow Weld, Third 10-Year Inservice Inspection
ML11192A2362011-07-12012 July 2011
Notice of Closed Meeting with Callaway to Discuss Lessons Learned from the Recent Triennial Force-On-Force Exercise at the Callaway Nuclear Power Plant
IR 05000483/20110072011-06-27027 June 2011
IR 05000483-11-007, on 03/21-05/13/11, Callaway Plant, Special Inspection for Turbine-driven Auxiliary Feedwater Pump Bearing Degradation
ML1113202252011-05-12012 May 2011
Notice of Preapplication Meeting with Union Electric Company to Discuss Callaway Plant, Unit 1's Amendment Request to Adopt Risk-informed, Performance-Based Alternative Described in National Fire Protection Association Standard (NFPA) 805
ML1136103072011-05-0404 May 2011
CW-2011-06-Public Forms
ML1109501212011-04-0505 April 2011
Notice of Meeting to Discuss NRC Reactor Oversight Process Annual Assessment of Callaway Plant
ML1104001662011-02-22022 February 2011
Summary of Meeting with Union Electric Company to Discuss Licensee'S Planned Responses to Staff Requests for Additional Information Callaway Plant'S Request to Revise TS 3.3.2, ESFAS Instrumentation Functions
ML1101204702011-01-12012 January 2011
Notice of Meeting with Union Electric Company to Discuss Licensee'S Planned Responses to Staff Requests for Additional Information Callaway Plant'S Request to Revise TS 3.3.2, ESFAS Instrumentation Functions
ML1030202792010-11-0505 November 2010
Notice of Meeting with Union Electric Company to Discuss Licensee'S Planned Responses to Staff Requests for Additional Information Related to Callaway Plant'S Request to Revise TS 3.3.2, ESFAS Instrumentation Functions
ML11363A1132010-08-0505 August 2010
Memo from M. Markley, NRR to M. Kotzalas, EDO on G20100476/EDATS: OEDO-2010-0609 - Briefing Package for Drop-In Visit by Union Electric Company Official with NRC Staff on August 13, 2010, for Callaway Plant
ML1009105332010-04-0505 April 2010
U.S. Nuclear Regulatory Commission Staff Review of the Department of Homeland Security Consultation Reports
ML0929300152009-10-20020 October 2009
Revised Notice of Meeting with Union Electric Company and Wolf Creek Nuclear Operating Company to Discuss NRC Requests for Additional Information on Generic Letter 2004-02
ML0928003162009-10-16016 October 2009
Notice of Meeting with Union Electric Company and Wolf Creek Nuclear Operating Company to Discuss NRC Requests for Additional Information on Generic Letter 2004-02 Sent 7/31/0209 and 8/27/2009, Respectively
ML0924605592009-09-0404 September 2009
Notice of Meeting with Union Electric Company to Discuss a Proposed Risk Informed Change to Callaway, Unit 1, Technical Specifications
ML0920306202009-07-31031 July 2009
Notice of Forthcoming Conference Call with Union Electric Company and Wolf Creek Nuclear Operating Company Re Draft Requests for Additional Information on Generic Letter 2004-02 for Callaway Plant and Wolf Creek Creek Generating Station
ML0916801682009-06-17017 June 2009
Charter for Special Inspection Involving the Failure of the Turbine Driven Auxiliary Feedwater Pump to Start at the Callaway Plant
2022-06-06
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UNITED STATES NUC LE AR RE G UL AT O RY C O M M I S S I O N R E GI ON I V 612 EAST LAMAR BLVD , SU I TE 400 AR LI N GTON , TEXAS 76011-4125 June 17, 2009 MEMORANDUM TO: Jeremy Groom, Resident Inspector, Team Leader Projects Branch B Division of Reactor Projects Michael Chambers, Resident Inspector Projects Branch C Division of Reactor Projects FROM: Dwight Chamberlain, Director /RA/ AVegel for Division of Reactor Projects
SUBJECT:
CHARTER FOR SPECIAL INSPECTION INVOLVING THE FAILURE OF THE TURBINE DRIVEN AUXILIARY FEEDWATER PUMP TO START AT THE CALLAWAY PLANT In response to the identification that the turbine driven auxiliary feedwater pump did not start and may not have been able to perform its function potentially due to the motor operated trip and throttle valve stem being improperly lubricated between May 4 and May 25, 2009, a special inspection will be performed. You are hereby designated as the special inspection team leader.
A. Basis On May 25, 2009, during a planned surveillance run of the turbine driven auxiliary feedwater pump, the pump did not pass its surveillance. The trip and throttle valve for the turbine did not actuate properly, such that the turbine did not start and come up to speed. The torque switch on the valve tripped. Inspection of the shaft for the trip and throttle valve showed that the lubricant used on the valve shaft was dried.
The licensee took corrective action to fix (lubricate) the valve that day which took approximately 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> to accomplish. The turbine driver auxiliary feedwater pump was subsequently tested and restored to an operable status.
A regional Senior Reactor Analyst (SRA) preliminarily estimated the Incremental Conditional Core Damage Probability for this issue to be 7.3 x 10-6, which falls in the overlap region between baseline and special inspection. Although the risk for this event is in the overlap region, a special inspection will be performed since there may be generic issues with lubricating motor-operated valves.
Jeremy Groom Michael Chambers B. Scope
- 1. Develop a complete sequence of events related to the discovery of the degraded condition.
- 2. Review operating experience involving prior opportunities to identify and evaluate action implemented at Callaway as a result of operating experience. Included in this should be a review of past notices by the valve shaft manufacturer of one lot of defective shafts in the 1990s that they recommended replacing.
- 3. Review the licensees root cause analysis and determine if it was conducted to a level of detail commensurate with the significance of the problem.
- 4. Determine if the licensees corrective actions have addressed the extent of condition and assess whether these actions are adequate to prevent recurrence. In particular determine if any other motor operated valves may have been improperly lubricated.
- 5. Examine the valve replacement program and lubricating schedule for how the trip and throttle valve (as well as other valves) are tracked to ensure timely lubrication.
- 6. Collect facts to support an accurate portrayal of exposure time.
- 7. Collect facts to support proper crediting of the licensees ability to recover the turbine driven auxiliary feedwater pump within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> as assumed in the risk assessment.
Ensure to include time needed to procure the lubricant if there was a need to grease the valve during any events.
- 8. Review the licensees procedures directing them to manually operate valve with particular attention to whether they were sufficient to direct operators to manual operations in a timely manner and whether they are accomplishable under event-like conditions (i.e., station blackout).
- 9. Determine whether the licensees lubrication schedule and procedural scope for the trip and throttle valve were within line of those recommended by the Terry Turbine Users Group and industry standards
- 10. Evaluate whether there was the potential for damaging other parts of trip and throttle valve in the method the licensee chose to recover the valve on May 25, 2009.
- 11. Evaluate whether the licensee was thorough in their troubleshooting on May 25, 2009, for evaluating whether other parts of trip and throttle valve could have been damaged and caused the failure (in particular the stress point on the screw spindle button).
- 12. Examine whether the licensee followed industry standards for trip and throttle valve rebuilds which they perform.
- 13. Determine what type of lubricant the licensee was using (lithium based grease) and whether that lubricant is acceptable for the application.
- 14. Examine the licensees monthly cycle of lubrication and licensees explanation of how a regularly stroked valve could allow the lubricant to harden.
- 15. Evaluate the licensees lubrication procedures for the possibility of mixing grease by not removing old, different types of grease if the licensee has switched lubricants in the past.
- 16. Determine if the licensee followed their Generic Letter 89-10 program for the trip and throttle valve.
- 17. Verify the licensee met the proper reporting requirements of 10 CFR 50.72 and 10 CFR 50.73. Also determine if the licensee has plans to issue a Licensee Event Report to document this issue.
- 18. Review the licensees compliance with the Technical Specifications.
Jeremy Groom Michael Chambers C. Guidance Inspection Procedure 93812, Special Inspection, will be used during this inspection. The inspection should emphasize fact-finding in its review of the circumstance surrounding this event. It is not the responsibility of the team to examine the regulatory process. Safety concerns identified that are not directly to the event should be reported to the Region IV office for appropriate action.
The team will report to the site and begin inspection no later than June 22, 2009. While onsite, you will provide daily status briefings to Region IV management, who will coordinate with the Office of Nuclear Reactor Regulation, to ensure that all other parties are kept informed.
Depending on the outcome of the inspection, inspection results will be documented in Special Inspection Report 05000482/2009009. This report will be issued within 45 days of the completion of the inspection.
This guidance may be modified should you develop significant new information that warrants review. Should you require support for the final determination of the risk significance of any issue, contact David Loveless at (817) 860-8161. Should you have any questions concerning this guidance, contact me at (817) 860-8141.
Jeremy Groom Michael Chambers File located: R:_Reactors\CW\2009\CWY TDAFW SI charter.doc ML#091680168 SUNSI Rev Compl. 9 Yes No ADAMS 9Yes No Reviewer Initials Vgg Publicly Avail 9Yes No Sensitive 9 Yes No Sens. Type Initials Vgg C:DRP/B B:DRP/SPE D:DRP VGGaddy RDeese DDChamberlain
/RA/ /RA/ /RA/AVegel for 6/16/09 6/16/09 6/17/09 OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax
