CNL-14-117, Response to NRC Request for Additional Information Related to Potential Loss of Spent Fuel Cooling

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Response to NRC Request for Additional Information Related to Potential Loss of Spent Fuel Cooling
ML14182A695
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
Issue date: 06/30/2014
From: James Shea
Tennessee Valley Authority
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
CNL-14-117, TAC ME6761
Download: ML14182A695 (2)


Text

L44 140630 001 1101 Market Street, Chattanooga, Tennessee 37402 CNL-14-117 June 30, 2014 10 CFR 50.4 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Browns Ferry Nuclear Plant, Units 1, 2, and 3 Renewed Facility Operating License Nos. DPR-33, DPR-52, and DPR-68 NRC Docket Nos. 50-259, 50-260, and 50-296

Subject:

Response to NRC Request for Additional Information Related to Potential Loss of Spent Fuel Cooling (TAC No. ME6761)

References:

1. Letter from NRC to TVA, "Browns Ferry Nuclear Plants, Units 1, 2, and 3 -

Request for Additional Information Related to Potential Loss of Spent Fuel Cooling (TAC No. ME6761)," dated March 24, 2014 In the referenced letter, the Nuclear Regulatory Commission (NRC) staff stated that they had completed an initial evaluation of a petition request using information contained in each subject facility's safety analysis report and had concluded that additional information was necessary from certain facilities in order to evaluate the response of the facilities following design-basis events.

The staff selected facilities that shared a common secondary containment surrounding two spent fuel pools (SFPs) for its initial information request. The NRC stated that these facilities were more likely to have a high decay heat load due to refueling in one of the SFPs during a time when other equipment within the secondary containment may be essential for accident mitigation or safe shut down of an adjacent operating unit. The NRC requested that, in order to better understand the reliability of the SFP cooling systems, the expected response of the affected facilities to their loss, and the safety significance of the SFP cooling function at the Browns Ferry Nuclear Plant (BFN), the Tennessee Valley Authority (TVA) respond to the request for additional information provided by June 30, 2014.

During the review of information necessary to respond to this request, TVA has identified that it requires additional time to respond to the request for information. Therefore, TVA respectfully requests that the NRC grant an additional 45 days, i.e., to August 14, 2014, to respond to this request.

U.S. Nuclear Regulatory Commission Page 2 June 30, 2014 There are no new regulatory commitments contained in this submittal. Please address any questions regarding this submittal to Mr. Edward D. Schrull at (423) 751-3850.

ully, (JcL--

j_~. Shea t ee President, Nuclear Licensing cc:

NRC Regional Administrator-Region II NRC Senior Resident Inspector-Browns Ferry Nuclear Plant NRC Project Manager-Browns Ferry Nuclear Plant