ML12177A000

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NRR E-mail Capture - Sequoyah 1 and 2 - Revise TSs in Support of Unit Station Service Transformer Modification
ML12177A000
Person / Time
Site: Sequoyah  Tennessee Valley Authority icon.png
Issue date: 06/22/2012
From: Siva Lingam
Plant Licensing Branch II
To: Mackaman C
Tennessee Valley Authority
References
TAC ME8772, TAC ME8773
Download: ML12177A000 (2)


Text

NRR-PMDAPEm Resource From: Lingam, Siva Sent: Friday, June 22, 2012 1:35 PM To: Mackaman, Clyde Douglas; sday@tva.gov; tecribbe@tva.gov Cc: Broaddus, Doug; Mathew, Roy; Matos-Marin, Alfredo; Lapinsky, George

Subject:

Sequoyah 1 and 2 - Revise TSs in Support of Unit Station Service Transformer Modification (TAC Nos. ME8772 and ME8773)

By letter dated May 23, 20112, Tennessee Valley Authority (TVA or the licensee) submitted a license amendment for Sequoyah Nuclear Plant (SQN), Units 1 and 2 (TS-SQN-12-01). This license amendment proposes to revise the Technical Specifications 3/4.8.1 to include a surveillance requirement to demonstrate the required offsite circuits OPERABLE at least once per 18 months by manually and automatically transferring the power supply to a 6.9 kV unit board from the normal supply to the alternate supply. This change is necessary as a result of the planned modifications to the plant design and operating configuration that will allow use of the unit station service transformers as a power supply to an offsite circuit. The purpose of this e-mail is to provide the results of the U.S. Nuclear Regulatory Commission (NRC) staffs acceptance review of this amendment request. 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 application and concluded that it does provide technical information in sufficient detail to enable the NRC staff to complete its detailed technical review and make an independent assessment regarding the acceptability of the proposed amendment in terms of regulatory requirements and the 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. If additional information is needed, you will be advised by separate correspondence.

If you have any questions, please contact me.

Siva P. Lingam U.S. Nuclear Regulatory Commission Project Manager (NRR/DORL/LPL2-2)

Sequoyah Nuclear Plant Crystal River Nuclear plant (EPU)

Location: O8-D5; Mail Stop: O8-G9a Telephone: 301-415-1564; Fax: 301-415-1222 E-mail address: siva.lingam@nrc.gov 1

Hearing Identifier: NRR_PMDA Email Number: 397 Mail Envelope Properties (Siva.Lingam@nrc.gov20120622133500)

Subject:

Sequoyah 1 and 2 - Revise TSs in Support of Unit Station Service Transformer Modification (TAC Nos. ME8772 and ME8773)

Sent Date: 6/22/2012 1:35:23 PM Received Date: 6/22/2012 1:35:00 PM From: Lingam, Siva Created By: Siva.Lingam@nrc.gov Recipients:

"Broaddus, Doug" <Doug.Broaddus@nrc.gov>

Tracking Status: None "Mathew, Roy" <Roy.Mathew@nrc.gov>

Tracking Status: None "Matos-Marin, Alfredo" <Alfredo.Matos-Marin@nrc.gov>

Tracking Status: None "Lapinsky, George" <George.Lapinsky@nrc.gov>

Tracking Status: None "Mackaman, Clyde Douglas" <cdmackaman@tva.gov>

Tracking Status: None "sday@tva.gov" <sday@tva.gov>

Tracking Status: None "tecribbe@tva.gov" <tecribbe@tva.gov>

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 2425 6/22/2012 1:35:00 PM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received: