ML12158A547
| ML12158A547 | |
| Person / Time | |
|---|---|
| Site: | Technical Specifications Task Force |
| Issue date: | 06/13/2012 |
| From: | Michelle Honcharik Licensing Processes Branch (DPR) |
| To: | Technical Specifications Task Force |
| Honcharik M | |
| References | |
| TAC ME8308, GL-08-001, TSTF-523, Rev 1 | |
| Download: ML12158A547 (5) | |
Text
June 13, 2012 Technical Specifications Task Force (TSTF) 11921 Rockville Pike, Suite 100 Rockville, MD 20852
SUBJECT:
ACCEPTANCE FOR REVIEW AND REQUEST FOR ADDITIONAL INFORMATION REGARDING TRAVELER TSTF-523, REVISION 1, GENERIC LETTER 2008-01, MANAGING GAS ACCUMULATION (TAC NO. ME8308)
Dear Members of the TSTF:
By letter dated March 29, 2012 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML12089A356), you submitted to the U.S. Nuclear Regulatory Commission (NRC) for review and approval Traveler TSTF-523, Revision 1, Generic Letter 2008-01, Managing Gas Accumulation. Your submission noted that the review of this Traveler is exempt from review fees in accordance to Title 10 of the Code of Federal Regulations Part 170 and the letter from J. E. Dyer (NRC) to the TSTF dated August 18, 2010 (ADAMS Accession No. ML102300233).
The NRC staff has completed a preliminary review of your submission and determined it is sufficiently complete and appropriate to initiate a more comprehensive review.
Since completion of the preliminary acceptance review, the NRC staff has begun the comprehensive review and determined that additional information is needed to complete the comprehensive review. Enclosed is the NRC staffs request for additional information.
The TSTF-523, Revision 1, review schedule has been planned as shown in the table below. If circumstances should lead to anticipated or actual schedule slippage, the causing party should promptly notify and coordinate with the other party. Early completion of a milestone would not require further coordination.
MILESTONE SCHEDULE DATE Requests for Additional Information (RAIs)
June 22, 2012 RAI Response from TSTF September 21, 2012 Issue Notice for Comment on Model Safety Evaluation and Model Application February 8, 2013 Issue Notice of Availability for Model Safety Evaluation and Model Application May 29, 2013
TSTF If you have any questions, please contact me at (301) 415-1774 or via e-mail to Michelle.Honcharik@nrc.gov.
Sincerely,
/RA/
Michelle C. Honcharik, Sr. Project Manager Licensing Processes Branch Division of Policy and Rulemaking Office of Nuclear Reactor Regulation Project No. 753
Enclosure:
As stated cc w/ encl: See next page
TSTF If you have any questions, please contact me at (301) 415-1774 or via e-mail to Michelle.Honcharik@nrc.gov.
Sincerely,
/RA/
Michelle C. Honcharik, Sr. Project Manager Licensing Processes Branch Division of Policy and Rulemaking Office of Nuclear Reactor Regulation Project No. 753
Enclosure:
As stated cc w/ encl: See next page DISTRIBUTION:
PUBLIC PLPB R/F RidsNrrOd RidsNrrDpr RidsOgcMailCenter RidsOpaMail RidsAcrsAcnwMailCenter RidsNrrPMMHoncharik RidsNrrLADBaxley RidsNrrDprPlpb RidsNrrDssStsb JGall JMiller WLyon RidsNrrDssSrxb RidsNrrDss ADAMS Accession No: ML12158A547 NRR-106 OFFICE PLPB/PM PLPB/LA STSB/BC SRXB/BC PLPB/BC NAME MHoncharik DBaxley (MHamm for RElliott AUlses JJolicoeur
DATE 6/13/2012 6/12/2012 6/13/2012 6/13/2012 6/15/2012 OFFICIAL RECORD COPY
ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION TECHNICAL SPECIFICATIONS TASK FORCE TRAVELER TSTF-523, REVISION 1 GENERIC LETTER 2008-01, MANAGING GAS ACCUMULATION On March 29, 2012, the Technical Specifications Task Force (TSTF) submitted Revision 1 of TSTF-523 for U.S. Nuclear Regulatory Commission (NRC) review. The purpose of the Traveler is to update gas void considerations in NUREGs 1430 - 1434, the Standard Technical Specifications that will provide a basis for correction of inadequate technical specifications (TSs). This is to be accomplished while providing improved flexibility in surveillance requirements (SRs) by incorporation of a licensee-controlled document, the Surveillance Frequency Control Program (SFCP). This is the principal change associated with TSTF-523.
The NRC staff has determined that the overall approach described in TSTF-523 is acceptable, but additional information is needed and some details must be corrected. Please provide your plans for addressing the following items or, if addressing the item is straightforward, then provide your response:
- 1. Page 8 of TSTF-523, Revision 1, contains a brief discussion of the SFCP and a brief justification for applying the SFCP to the associated surveillance requirements (SRs). The staff requires a more detailed justification for the application of the SFCP to SRs associated with gas accumulation, given the unique phenomena involved.
- 2. Startup from an outage is permitted with gas voids in the subject systems. This is not consistent with the water-solid condition required by the current licensing basis (CLB) for most plant safety related systems and associated supporting systems that contain water.
- 3. There are many references to calculations to establish acceptable void criteria or to establish operability but none regarding how this may be acceptably accomplished. The Traveler should be supplemented to discuss how licensees will establish acceptable void criteria.
- 4. Omission of Verify the containment spray piping is full of water to the [100] ft level in the containment spray header from NUREG-1432 TS SR 3.6.6.4 is not acceptably justified.
- 5. Definition of accessible locations must be provided.
- 6. The technical discussion does not acceptably address voiding issues associated with exceeding the saturation temperature in residual heat removal systems.
Technical Specifications Task Force Mailing List cc:
Technical Specifications Task Force 11921 Rockville Pike Suite 100 Rockville, MD 20852 Attention: Donald R. Hoffman E-mail: donaldh@excelservices.com Norman J. (Jack) Stringfellow Southern Nuclear Operating Company P.O. Box 1295 Birmingham, AL 35201-1295 E-mail: string@southernco.com Roy A. (Tony) Browning Duane Arnold Energy Center 3277 DAEC Rd.
PSC/Licensing Palo, IA 52324-9785 E-mail: tony.browning@nexteraenergy.com William J. (Billy) Steelman Entergy Waterford 3 17265 River Road Hwy 18 Killona, LA 70057 E-mail: wsteelm@energy.com Wendy E. Croft Exelon Nuclear 200 Exelon Way, Suite 340 Kennett Square, PA 19348 E-mail: wendi.croft@exeloncorp.com Brian D. Mann EXCEL Services Corporation 11921 Rockville Pike, Suite 100 Rockville, MD 20852 E-mail: brianm@excelservices.com