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

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{{#Wiki_filter:biD/NUU u;t,ee RS-13-208 August 14, 2013 10 CFR 50.55a ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555-0001 Dresden Nuclear Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-19 and DPR-25 NRC Docket Nos. 50-237 and 50-249
{{#Wiki_filter: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:==
==Subject:==
Clarification Regarding the Inservice Testing of Dresden Nuclear Power Station High Pressure Coolant Injection (HPCI) Valves 2(3)-2301-32-SO (TAC No.ME9872)
 
==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:==
==References:==


1.Letter from P. R. Simpson (Exelon Generation Company, LLC (EGC)) to U. S. NRC, "Submittal of Relief Requests Associated with the Fifth Inservice Testing Interval," dated October 30, 2012 2.Letter from P. R. Simpson (EGC) to U. S. NRC, "Response to Request for Additional Information Related to Request for NRC Approval of Relief Requests for Fifth Inservice Testing Interval (TAC Nos. ME9871 and ME9872)," dated April 1, 2013 In Reference 1, EGC requested approval of relief requests associated with the upcoming fifth inservice testing (IST) interval at Dresden Nuclear Power Station (DNPS), Units 2 and 3.
==References:==
While reviewing Reference 1, the NRC found that additional information was required to support its review. The requested information was provided in Reference 2.
1.
During a telephone conversation between NRC and EGC personnel on July 31, 2013, NRC personnel requested that EGC provide an additional clarification related to the testing of DNPS, Units 2 and 3 HPCI valves 2(3)-2301-32-SO.
: 1. Letter Letter from from P.P. R.
1 RS-13-208 10 CFR 50.55a August 14, 2013 ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555-0001 Dresden Nuclear Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-19 and DPR-25 NRC Docket Nos. 50-237 and 50-249
R. Simpson Simpson (Exelon (Exelon Generation Generation Company, Company,LLC    LLC(EGC))
 
(EGC>>toto U.
==Subject:==
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,"
Clarification Regarding the Inservice Testing of Dresden Nuclear Power Station High Pressure Coolant Injection (HPCI) Valves 2(3)-2301-32-S0 (TAC No. ME9872)
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.


==References:==
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.
: 1. Letter from P. R. Simpson (Exelon Generation Company, LLC (EGC>> to U. S. NRC, "Submittal of Relief Requests Associated with the Fifth Inservice Testing Interval," dated October 30,2012 2. Letter from P. R. Simpson (EGC) to U. S. NRC, "Response to Request for Additional I nformation Related to Request for NRC Approval of Relief Requests for Fifth Inservice Testing Interval (TAC Nos. ME9871 and ME9872)," dated April 1, 2013 In Reference 1, EGC requested approval of relief requests associated with the upcoming fifth inservice testing (1ST) interval at Dresden Nuclear Power Station (DNPS), Units 2 and 3. While reviewing Reference 1, the NRC found that additional information was required to support its review. The requested information was provided in Reference
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.
: 2. During a telephone conversation between NRC and EGC personnel on July 31,2013, NRC personnel requested that EGC provide an additional clarification related to the testing of DNPS, Units 2 and 3 HPCI valves 2(3)-2301-32-S0.
respectively.
August 14, 2013 U. S. Nuclear Regulatory Commission Page 2 Specifically, in EGC's response to NRC Request RAI-RV-23H-3 provided in Reference 2, EGC stated that 2(3)-2301-32-SO valve internals were not repaired or replaced during the fourth ten-year inservice testing interval. The intent of this response was to convey the fact that the entire valve assembly is replaced at a six-year frequency in lieu of valve disassembly and inspection and or repair of valve internals. Moreover, the valve assemblies were last replaced on March 11, 2013, and on December 8, 2007, for DNPS Units 2 and 3, respectively.
Respectfully, Patrick R. Simpson Manager - Licensing Exelon Generation Company, LLC}}
Respectfully, Exelon Generation Company, LLC August 14,2013 U. S. Nuclear Regulatory Commission Page 2 Specifically, in EGC's response to NRC Request RAI-RV-23H-3 provided in Reference 2, EGC stated that 2(3)-2301-32-S0 valve internals were not repaired or replaced during the fourth year inservice testing interval.
The intent of this response was to convey the fact that the entire valve assembly is replaced at a six-year frequency in lieu of valve disassembly and inspection and or repair of valve internals.
Moreover, the valve assemblies were last replaced on March 11, 2013, and on December 8, 2007, for DNPS Units 2 and 3, respectively.
Respectfully, Patrick R. Simpson Manager -Licensing Exelon Generation Company, LLC}}

Revision as of 14:40, 4 November 2019

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)
v • d • e


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:

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:

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

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