ML13128A253

Request for Additional Information Regarding Relief Request 3RR-20 to the Third 10-year Inservice Inspection Program for Susquehanna Unit 2:

ML13128A253
Person / Time
Site:	Susquehanna
Issue date:	05/09/2013
From:	Jeffrey Whited Plant Licensing Branch 1
To:	Rausch T Susquehanna
Lamb J
References
TAC MF1756
Download: ML13128A253 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555"()001 May 9,2013 Mr. Timothy S. Rausch Senior Vice President and Chief Nuclear Officer PPL Susquehanna, LLC 769 Salem Boulevard Berwick, PA 18603-0467

SUBJECT:

SUSQUEHANNA STEAM ELECTRIC STATION, UNIT 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST 3RR-20 TO THE THIRD 10-YEAR INSERVICE INSPECTION PROGRAM (TAC NO. MF1756)

Dear Mr. Rausch:

By letter dated May 6,2013,1 PPL Susquehanna, LLC (PPL) submitted for Nuclear Regulatory Commission (NRC) staff review and approval, Inservice Inspection Program Relief Request 3RR-20, which requests relief from the ASME Section XI, Code Category B-G-1, Item B6.190 requirement to perform a visual examination of 100% of the 'A' Reactor Recirculation Pump Flange for the third 10-year inspection interval. To complete its review, the NRC staff requests responses to the enclosed questions.

The draft questions were sent to Mr. Jason Jennings, of your staff, to ensure that the questions were understandable, the regulatory basis for the questions was clear, and to determine if the information was previously docketed. On May 8, 2013, Mr. Jennings, agreed that you would provide a response by May 31, 2013.

If you have any questions regarding this matter, please contact me at 301-415-4090.

Sincerely,

~w Jeffrey A. Whited, Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-388

Enclosure:

Request for Additional Information cc w/encl: Distribution via Listserv 1 Agencywide Documents Access and Management System Accession No. ML13127A199.

REQUEST FOR ADDITIONAL INFORMATION OFFICE OF NUCLEAR REACTOR REGULATION RELIEF REQUEST 3RR-20 PPL SUSQUEHANNA, LLC ALLEGHANY ELECTRIC COOPERATION, INC.

SUSQUEHANNA STEAM ELECTRIC STATION, UNIT 2 DOCKET NUMBER 50-388 By letter dated May 6,2013,1 PPL Susquehanna, LLC (PPL) submitted for Nuclear Regulatory Commission (NRC) staff review and approval, Inservice Inspection Program Relief Request 3RR-20, which requests relief from the ASME Section XI, Code Category B-G-1, Item B6.190 requirement to perform a visual examination (VT-1) of 100% of the 'A' Reactor Recirculation Pump Flange for the third 10-year inspection interval. To complete its review, the NRC staff requests the following additional information.

RAI 1 Please describe the Susquehanna operational experience with any possible leakage from the Reactor Recirculation Pump Flange mechanical joint, which might be indicative of degradation of the joint materials.

RAI2 The submittal states that, after discovery of the missed VT-1 of the 'A' Reactor Recirculation Pump Flange, a VT-1 examination was performed of the assembled joint which achieved 98% of the required coverage. Provide a sketch or some other means of detailing the limitations of the VT-1 examination performed on the 'A' Reactor Recirculation Pump Flange.

RAI3 On page 2 of the submittal, the licensee states, in part, that:

PPL will also perform [a] VT-2 examination on the pump prior to startup of Unit 2.

Please describe the plant conditions and hold time applicable to the performance of this VT-2 examination. If the pressure associated with the VT-2 examination will be different than that required by IWB-5221, please provide justification.

1 Agencywide Documents Access and Management System Accession No. ML13127A199.

Enclosure

May 9,2013 Mr. Timothy S. Rausch Senior Vice President and Chief Nuclear Officer PPL Susquehanna, LLC 769 Salem Boulevard Berwick, PA 18603-0467

SUBJECT:

SUSQUEHANNA STEAM ELECTRIC STATION, UNIT 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING RELIEF REQUEST 3RR-20 TO THE THIRD 10-YEAR INSERVICE INSPECTION PROGRAM (TAC NO. MF1756)

Dear Mr. Rausch:

By letter dated May 6, 2013,1 PPL Susquehanna, LLC (PPL) submitted for Nuclear Regulatory Commission (NRC) staff review and approval, Inservice Inspection Program Relief Request 3RR-20, which requests relief from the ASME Section XI, Code Category B-G-1, Item B6.190 requirement to perform a visual examination of 100% of the 'A' Reactor Recirculation Pump Flange for the third 10-year inspection interval. To complete its review, the NRC staff requests responses to the enclosed questions.

The draft questions were sent to Mr. Jason Jennings, of your staff, to ensure that the questions were understandable, the regulatory basis for the questions was clear, and to determine if the information was previously docketed. On May 8, 2013, Mr. Jennings, agreed that you would provide a response by May 31,2013.

If you have any questions regarding this matter, please contact me at 301-415-4090.

Sincerely, Ira!

Jeffrey A. Whited, Project Manager Plant Licensing Branch 1-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-388

Enclosure:

Request for Additional Information cc w/encl: Distribution via Listserv 1 Agencywide Documents Access and Management System Accession No. ML13127A199.

Distribution:

Public Branch Reading RidsRgn1 MailCenter Resource RidsOgcRp Resource RidsNrrDorlLpl1-2 Resource RidsNrrPMSusquehanna Resource RidsNrrlAABaxter RidsNrrOorlOpr Resource RidsAcrsAcnw_MailCTR Resource K. Hoffman, NRR T. Lupoid, NRR LPL1-2/PM JWhited JWhited 05/0812013 05/0912013