Letter Sequence Draft RAI |
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MONTHYEARNLS2011085, Relief Request from Certain Inservice Testing Code Requirements2011-08-24024 August 2011
Relief Request from Certain Inservice Testing Code Requirements
Project stage: Request
ML1127304842011-09-30030 September 2011
Acceptance Review Email, Relief Request Nos. RV-07- Pressure Isolation Valve Leaking Testing and RV-01, Revision 1 - HPCI Solenoid Operated Drain Valve Testing - Fourth 10-Year IST Program Interval
Project stage: Acceptance Review
ML1201304542012-01-13013 January 2012
Draft Request for Additional Information, Relief Request Nos. RV-07 and RV-01, Revision 1, Fourth 10-Year Inservice Testing Program Interval
Project stage: Draft RAI
ML1201304512012-01-13013 January 2012
Email, Draft Request for Additional Information, Relief Request Nos. RV-07 and RV-01, Revision 1, Fourth 10-Year Inservice Testing Program Interval
Project stage: Draft RAI
ML1202701552012-02-13013 February 2012
Request for Additional Information, Relief Request No. RV-01, Revision 1, HPCI Solenoid Operated Drain Valve Testing, Fourth 10-Year Inservice Testing Program Interval
Project stage: RAI
NLS2012016, Response to Nuclear Regulatory Commission Request for Additional Information Request for Relief for the Fourth 10-Year Pump and Valve Inservice Testing Program2012-03-12012 March 2012
Response to Nuclear Regulatory Commission Request for Additional Information Request for Relief for the Fourth 10-Year Pump and Valve Inservice Testing Program
Project stage: Request
ML1213905112012-05-18018 May 2012
Draft Request for Additional Information, Second Round, Relief Request Nos. RV-07 and RV-01, Revision 1, Fourth 10-Year Inservice Testing Program Interval
Project stage: Draft RAI
ML1213905092012-05-18018 May 2012
Email, Draft Request for Additional Information, Second Round, Relief Request Nos. RV-07 and RV-01, Revision 1, Fourth 10-Year Inservice Testing Program Interval
Project stage: Draft RAI
ML12157A5412012-06-11011 June 2012
Second Request for Additional Information Request for Relief for the Fourth 10-Year Pump and Value Inservice Testing Program
Project stage: RAI
NLS2012057, Response to Nuclear Regulatory Commission Request for Additional Information Relief Request RV-01 Revision 12012-06-22022 June 2012
Response to Nuclear Regulatory Commission Request for Additional Information Relief Request RV-01 Revision 1
Project stage: Request
NLS2012082, Response to Nuclear Regulatory Commission Third Request for Additional Information Relief Requests RV-07 Revision 0 and RV-01 Revision 12012-08-14014 August 2012
Response to Nuclear Regulatory Commission Third Request for Additional Information Relief Requests RV-07 Revision 0 and RV-01 Revision 1
Project stage: Request
ML12233A1762012-08-28028 August 2012
Relief Request Nos. RV-07, Revision 0, and RV-01, Revision for Fourth 10-Day Inservice Inspection Interval Regarding Weld Overlay Repair
Project stage: Approval
2012-03-12
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REQUEST FOR ADDITIONAL INFORMATION RAI RV-01-1:
Please describe how NPPD is meeting the requirements of ISTC-3530, Valve Obturator Movement, ISTC-5151, Solenoid-Operated Valves (SOVs) - Valve Stroke Testing, ISTC-5152, SOVs - Stroke Test Acceptance Criteria,, and ISTC-5153, SOVs - Stroke Test Corrective Action, at CNS. Please state if NPPD also needs relief from these requirements based on this request.
RAI RV-01-2:
For this relief request, NPPD requested relief from ISTC-3510, Exercising Test Frequency.
NPPD states in the August 24, 2011 request that they will exercise each valve to the full closed position on a quarterly basis, which is equivalent to the nominally every 3 month requirement of ISTC-3510. Please describe in greater detail why NPPD requests relief from ISTC-3510 since it appears that NPPD can meet the requirement.
RAI RV-01-3:
Please provide any additional operational history for valves similar to HPCI-SOV-SSV64 and HPCI-SOV-SSV87 at CNS that can demonstrate greater reliability of these valves for time periods longer than the four maintenance cycles stated in this request.
RAI RV-01-4:
Please identify the consequences of HPCI-SOV-SSV64 and HPCI-SOV-SSV87 failure during normal and emergency operations.
RAI RV-01-5:
Please provide an explanation, as to why the HPCI risk information provided in the August 24, 2011 submittal supports the requested relief.
