ML16095A008

NRR E-mail Capture - Watts Bar Nuclear Plant Units 1 and 2 - Acceptance for Review - License Amendment Request for Diesel Generator Completion Time Extension (MF7417 and MF7148)

ML16095A008
Person / Time
Site:	Watts Bar
Issue date:	04/01/2016
From:	Robert Schaaf Plant Licensing Branch II
To:	Arent G, Casey K, Schrull E, Wells R Tennessee Valley Authority
References
CNL-16-040, MF7147, MF7148
Download: ML16095A008 (3)

Text

NRR-PMDAPEm Resource From: Schaaf, Robert Sent: Friday, April 01, 2016 1:25 PM To: Gordon Arent; Casey, Kevin E (kecasey@tva.gov); Schrull, Edward Dustin (edschrull@tva.gov); 'Wells, Russell Douglas' Cc: Daniels, Desiree L; 'Edmondson, Carla'; Saba, Farideh; Nadel, Jared

Subject:

Watts Bar Nuclear Plant Units 1 and 2 - Acceptance for Review - License Amendment Request for Diesel Generator Completion Time Extension (MF7417 and MF7148)

Gentlemen, By letter dated December 8, 2015 (Agencywide Documents Access and Management System (ADAMS)

Accession No. ML15342A477), the Tennessee Valley Authority (TVA) submitted a license amendment request (LAR) for Watts Bar Nuclear Plant (WBN), Units 1 and 2. By letter dated March 11, 2016 (ADAMS Accession No. ML16071A456), TVA submitted a revised LAR that superseded in its entirety the LAR submitted December 8, 2015. The proposed LAR requests changes to WBN Units 1 and 2 Technical Specification (TS) 3.8.1, "AC Sources - Operating," to extend the Completion Time for one inoperable diesel generator (DG) from 72 hours3 days <br />0.429 weeks <br />0.0986 months <br /> to 14 days based on the availability of a supplemental alternating current power source. Specifically, TVAs application proposes to take credit for the availability of the 6.9 kilovolt (kV) FLEX DGs installed as part of the mitigation strategies for beyond-design-basis-events. The purpose of this e-mail is to provide you with the results of the Nuclear Regulatory Commission (NRC) staffs acceptance review of this submittal. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.

The NRC staff has reviewed your submittal and concluded that it does provide technical information in sufficient detail to enable the NRC staff to proceed with its detailed technical review and make an independent assessment regarding the acceptability of the proposed amendment in terms of regulatory requirements and protection of public health and safety and the environment. Given the lesser scope and depth of the acceptance review as compared to the detailed technical review, there may be instances in which issues that impact the NRC staffs ability to complete the detailed technical review are identified despite completion of an adequate acceptance review. Based on its preliminary review, the staff has noted some areas that will require further clarification. You will be advised of further information needed to support the NRC staffs detailed technical review by separate correspondence.

If you have any questions, please contact me at 301-415-6020.

Regards, Robert G. Schaaf Robert G. Schaaf Senior Project Manager, Watts Bar/Bellefonte Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop O-8G9A Washington, DC 20555 301-415-6020 (o)

Robert.Schaaf@nrc.gov 1

2 Hearing Identifier: NRR_PMDA Email Number: 2753 Mail Envelope Properties (1bb0dd14c90641fcb75d7c7574c389ac)

Subject:

Watts Bar Nuclear Plant Units 1 and 2 - Acceptance for Review - License Amendment Request for Diesel Generator Completion Time Extension (MF7417 and MF7148)

Sent Date: 4/1/2016 1:25:02 PM Received Date: 4/1/2016 1:25:03 PM From: Schaaf, Robert Created By: Robert.Schaaf@nrc.gov Recipients:

"Daniels, Desiree L" <dlboyd@tva.gov>

Tracking Status: None

"'Edmondson, Carla'" <cedmondson@tva.gov>

Tracking Status: None "Saba, Farideh" <Farideh.Saba@nrc.gov>

Tracking Status: None "Nadel, Jared" <Jared.Nadel@nrc.gov>

Tracking Status: None "Gordon Arent" <garent@tva.gov>

Tracking Status: None "Casey, Kevin E (kecasey@tva.gov)" <kecasey@tva.gov>

Tracking Status: None "Schrull, Edward Dustin (edschrull@tva.gov)" <edschrull@tva.gov>

Tracking Status: None

"'Wells, Russell Douglas'" <rdwells0@tva.gov>

Tracking Status: None Post Office: HQPWMSMRS08.nrc.gov Files Size Date & Time MESSAGE 2795 4/1/2016 1:25:03 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received:

NRR-PMDAPEm Resource From: Schaaf, Robert Sent: Friday, April 01, 2016 1:25 PM To: Gordon Arent; Casey, Kevin E (kecasey@tva.gov); Schrull, Edward Dustin (edschrull@tva.gov); 'Wells, Russell Douglas' Cc: Daniels, Desiree L; 'Edmondson, Carla'; Saba, Farideh; Nadel, Jared

Subject:

Watts Bar Nuclear Plant Units 1 and 2 - Acceptance for Review - License Amendment Request for Diesel Generator Completion Time Extension (MF7417 and MF7148)

Gentlemen, By letter dated December 8, 2015 (Agencywide Documents Access and Management System (ADAMS)

Accession No. ML15342A477), the Tennessee Valley Authority (TVA) submitted a license amendment request (LAR) for Watts Bar Nuclear Plant (WBN), Units 1 and 2. By letter dated March 11, 2016 (ADAMS Accession No. ML16071A456), TVA submitted a revised LAR that superseded in its entirety the LAR submitted December 8, 2015. The proposed LAR requests changes to WBN Units 1 and 2 Technical Specification (TS) 3.8.1, "AC Sources - Operating," to extend the Completion Time for one inoperable diesel generator (DG) from 72 hours3 days <br />0.429 weeks <br />0.0986 months <br /> to 14 days based on the availability of a supplemental alternating current power source. Specifically, TVAs application proposes to take credit for the availability of the 6.9 kilovolt (kV) FLEX DGs installed as part of the mitigation strategies for beyond-design-basis-events. The purpose of this e-mail is to provide you with the results of the Nuclear Regulatory Commission (NRC) staffs acceptance review of this submittal. The acceptance review was performed to determine if there is sufficient technical information in scope and depth to allow the NRC staff to complete its detailed technical review. The acceptance review is also intended to identify whether the application has any readily apparent information insufficiencies in its characterization of the regulatory requirements or the licensing basis of the plant.

The NRC staff has reviewed your submittal and concluded that it does provide technical information in sufficient detail to enable the NRC staff to proceed with its detailed technical review and make an independent assessment regarding the acceptability of the proposed amendment in terms of regulatory requirements and protection of public health and safety and the environment. Given the lesser scope and depth of the acceptance review as compared to the detailed technical review, there may be instances in which issues that impact the NRC staffs ability to complete the detailed technical review are identified despite completion of an adequate acceptance review. Based on its preliminary review, the staff has noted some areas that will require further clarification. You will be advised of further information needed to support the NRC staffs detailed technical review by separate correspondence.

If you have any questions, please contact me at 301-415-6020.

Regards, Robert G. Schaaf Robert G. Schaaf Senior Project Manager, Watts Bar/Bellefonte Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop O-8G9A Washington, DC 20555 301-415-6020 (o)

Robert.Schaaf@nrc.gov 1

2 Hearing Identifier: NRR_PMDA Email Number: 2753 Mail Envelope Properties (1bb0dd14c90641fcb75d7c7574c389ac)

Subject:

Watts Bar Nuclear Plant Units 1 and 2 - Acceptance for Review - License Amendment Request for Diesel Generator Completion Time Extension (MF7417 and MF7148)

Sent Date: 4/1/2016 1:25:02 PM Received Date: 4/1/2016 1:25:03 PM From: Schaaf, Robert Created By: Robert.Schaaf@nrc.gov Recipients:

"Daniels, Desiree L" <dlboyd@tva.gov>

Tracking Status: None

"'Edmondson, Carla'" <cedmondson@tva.gov>

Tracking Status: None "Saba, Farideh" <Farideh.Saba@nrc.gov>

Tracking Status: None "Nadel, Jared" <Jared.Nadel@nrc.gov>

Tracking Status: None "Gordon Arent" <garent@tva.gov>

Tracking Status: None "Casey, Kevin E (kecasey@tva.gov)" <kecasey@tva.gov>

Tracking Status: None "Schrull, Edward Dustin (edschrull@tva.gov)" <edschrull@tva.gov>

Tracking Status: None

"'Wells, Russell Douglas'" <rdwells0@tva.gov>

Tracking Status: None Post Office: HQPWMSMRS08.nrc.gov Files Size Date & Time MESSAGE 2795 4/1/2016 1:25:03 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received: