CNL-16-068, Update to License Amendment Request, Application to Modify Technical Specification 2.1.1.2, Reactor Core Minimum Critical Power Ratio Safety Limits (TS-506)

Update to License Amendment Request, Application to Modify Technical Specification 2.1.1.2, Reactor Core Minimum Critical Power Ratio Safety Limits (TS-506)

ML16088A230
Person / Time
Site:	Browns Ferry
Issue date:	03/28/2016
From:	James Shea Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
CAC MF6760, CNL-16-068, TS-506
Download: ML16088A230 (2)

Text

Tennessee Valley Authority, 1101 Market Street, Chattanooga, Tennessee 37402 CNL-16-068 March 28, 2016 10 CFR 50.90 ATTN : Document Control Desk U. S. Nuclear Regulatory Commission Washington , D.C. 20555-0001 Browns Ferry Nuclear Plant, Unit 1 Renewed Facility Operating License No. DPR-33 NRC Docket No. 50-259

Subject:

Update to License Amendment Request for Browns Ferry Nuclear Plant (BFN), Unit 1 - Application to Modify Technical Specification 2.1.1.2, Reactor Core Minimum Critical Power Ratio Safety Limits (TS-506)

(CAC No. MF6760)

Reference:

Letter from TVA to NRC, CNL-15-056, "Browns Ferry Nuclear Plant (BFN),

Unit 1 - Application to Modify Technical Specification 2.1.1.2, Reactor Core Minimum Critical Power Ratio Safety Limits (TS-506) ," dated September 25, 2015 (ML15268A566)

In the Reference letter, Tennessee Valley Authority (TVA) submitted a license amendment request (LAR) in accordance with 10 CFR 50.90 to modify a Technical Specification (TS) for Browns Ferry Nuclear Plant (BFN), Unit 1. The proposed amendment revises the safety limit minimum critical power ratio values in TS 2.1.1.2 for two-loop operation from the current value of 1.09 to 1.06, and for single loop operation from the current value of 1.11 to 1.08.

The LAR was submitted to support the use of the ATRIUM 1OXM fuel design in BFN, Unit 1, commencing in the Fall of 2016. The Cycle 12 reload in the Fall of 2016 is the transition cycle in which the first reload of ATRIUM 10XM fuel is introduced.

In the reference letter, TVA requested approval of these proposed TS changes by September 25, 2016, with implementation within 60 days of issuance. However, the LAR should have requested approval of the proposed TS changes by September 25, 2016, with implementation to occur during the Unit 1 refueling outage in the Fall of 2016.

TVA has reviewed the information supporting a finding of no significant hazards consideration and the environmental consideration provided to the NRC in the reference letter. Additionally, in accordance with 10 CFR 50.91(b)(1), TVA is sending a copy of this letter and the enclosure to the Alabama State Department of Public Health.

U.S. Nuclear Regulatory Commission CNL-16-068 Page 2 March 28, 2016 There are no new regulatory commitments associated with this submittal. If there are any questions or if additional information is needed, please contact Mr. Edward D. Schrull at (423) 751-3850.

I declare under penalty of perjury that the foregoing is true and correct. Executed on the 28th day of March 2016.

Respectfully, cc:

NRC Regional Administrator - Region II NRC Senior Resident Inspector - Browns Ferry Nuclear Plant State Health Officer, Alabama State Department of Public Health