RS-13-208, Clarification Re Inservice Testing of High Pressure Coolant Injection Valves 2(3)-2301-32-SO

Clarification Re Inservice Testing of High Pressure Coolant Injection Valves 2(3)-2301-32-SO

ML13227A337
Person / Time
Site:	Dresden
Issue date:	08/14/2013
From:	Simpson P Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RS-13-208
Download: ML13227A337 (2)

Text

1 biD/ NUU u;t,ee RS-13-208 RS-13-208 10 CFR 50.55a 50.55a August August 14,14, 2013 2013 ATTN:

ATTN: Document Document Control Control Desk Desk U.

U. S.S. Nuclear NuclearRegulatory RegulatoryCommission Commission Washington, Washington, DC DC 20555-0001 20555-0001 Dresden Nuclear Nuclear Power Power Station, Station, Units Units 22 and and 33 Renewed Renewed Facility Facility Operating Operating License License Nos.

Nos. DPR-19 DPR-19and and DPR-25 DPR-25 NRC NRC Docket Docket Nos.Nos. 50-237 50-237 and and 50-249 50-249

Subject:

Clarification Regarding the Clarification Regarding the Inservice Testing of of Dresden DresdenNuclear NuclearPowerPowerStation Station High High Pressure PressureCoolant CoolantInjection Injection (HPCI)

(HPCI) Valves 2(3)-2301-32-SO 2(3)-2301-32-S0 (TAC (TAC No.No. ME9872)

ME9872)

References:

1.

1. Letter Letter from from P.P. R.

R. Simpson Simpson (Exelon (Exelon Generation Generation Company, Company,LLC LLC(EGC))

(EGC>>toto U.

U. S. NRC, "Submittal of Relief Requests Associated with the FifthInservice S. NRC, "Submittal of Relief Requests Associated with the Fifth Inservice Testing Testing Interval,"

Interval," dated dated October October30, 2012 30,2012 2.

2. Letter Letter from from P. R. Simpson (EGC) (EGC) to U. U. S. NRC, "Response "Response to to Request Requestfor for Additional Additional Information Information Related to to Request Requestfor forNRC NRCApproval Approvalof ofRelief Relief Requests Requestsfor forFifth Fifth Inservice InserviceTesting TestingInterval Interval(TAC (TAC Nos.

Nos. ME9871 ME9871 and and ME9872)," dated April ME9872)," dated April 1, 2013 1, 2013 In In Reference Reference 1,1, EGC EGC requested requestedapproval approvalof ofrelief relief requests requestsassociated associatedwith withthe theupcoming upcomingfifth fifth inservice inservice testing testing (IST)

(1ST) interval interval at Dresden Dresden Nuclear Nuclear Power PowerStation Station(DNPS),

(DNPS),UnitsUnits 22and and3.3.

While While reviewing reviewing Reference Reference 1, 1,the theNRC NRCfoundfoundthat thatadditional additionalinformation informationwas wasrequired requiredtotosupport support its review. The requested information was provided its review. The requested information was provided in Reference 2.in Reference 2.

During During a telephone telephone conversation conversation between betweenNRC NRCand andEGCEGCpersonnel personnelon onJuly July31, 2013, NRC 31,2013, NRC personnel personnelrequested requestedthat thatEGCEGCprovide provideananadditional additionalclarification clarificationrelated relatedtotothe thetesting testingofofDNPS, DNPS, Units Units 22 and and33HPCI HPCI valves valves2(3)-2301-32-SO.

2(3)-2301-32-S0.

August 14, 2013 14,2013 U. S. Nuclear Regulatory U. Regulatory Commission Commission Page 2 Specifically, in Specifically, in EGC's EGC's response response to to NRC NRC Request RequestRAI-RV-23H-3 provided in RAI-RV-23H-3 provided in Reference 2, EGC EGC stated that stated that 2(3)-2301-32-SO 2(3)-2301-32-S0 valve valve internals internals were were not not repaired repaired oror replaced replaced during during the thefourth fourth ten-ten-year inservice testing interval. The intent interval. The intent ofof this response was to convey the fact that response was to convey the fact that the entirethe entire valve assembly assembly is is replaced replaced at ataasix-year six-yearfrequency frequencyinin lieu lieu of of valve valve disassembly disassemblyand andinspection inspection and or repair of valve valve internals.

internals. Moreover, Moreover, the valve assemblies assemblies werewere last last replaced replaced on on March 11, March 11, 2013, and on December December 8, 8, 2007, 2007,for for DNPS DNPS Units Units 22 and and 3,3, respectively.

respectively.

Respectfully, Patrick R. Simpson Manager - Licensing Exelon Generation Company, LLC