and Request for Specific Usage of Alternate Source Term Methodology for Calculating Radiation Doses Associated with the Proposed Temporary Change to Technical Specifications (TS-SQN-2011-03)

In accordance with the provisions of 10 CFR 50.90, "Application for amendment of license, construction permit, or early site permit, " the Tennessee Valley Authority (TVA) is submitting a request for a temporary license change to Facility Operating License No. DPR-79 for the Sequoyah Nuclear Plant (SQN), Unit 2. During the SQN, Unit 2 refueling outage, conducted in the spring of 2011, two penetrations through the Shield Building dome were created. To maintain Shield Building integrity, these penetrations were closed with a steel hatch assembly prior to entering Mode 4 at the end of the refueling outage. The proposed change will revise the SQN, Unit 2, Technical Specifications (TS) to allow SQN, Unit 2, to open one of the penetration hatches in the Shield Building dome for up to five hours per day, six days per calendar week while in Modes 1 through 4 during Unit 2 Cycle 18 (U2C18) from receipt of NRC approval for this request and until entering Mode 5 at the start of the Unit 2 refueling outage 18 (U2R1 8). The U2R1 8 refueling outage commences in the fall of 2012. printed on recycled pape