AND SUPPLEMENT TO LICENSE AMENDMENT REQUEST 0 1-06 FOR A ONE-TIME CHANGE TO TECHNICAL SPECIFICATIONS ALLOWABLE COMPLETION TIME FOR OFFSITE AC CIRCUITS

Gentlemen: This letter supplements and supercedes previously submitted Licensing Amendment Request (LAR) 01-06, reference 1, in its entirety. TXU Electric intends to re-submit changes to Technical Specifications (TS) which were initially requested by LAR 0 1-06 at a later time. In addition, this supplement includes TXU Electric's response to NRC Requests for Additional Information (RAI) regarding risk-informed evaluations performed in support of the Technical Specifications changes initially submitted by reference 1. As provided in the attached supplement, TXU Electric hereby requests prompt NRC review and approval of a one-time only change to the CPSES Technical Specifications to extend the required Completion Time (CT) for restoration of an inoperable offsite circuit from 72 hours to 21 days. This change is needed to ensure the continued long term reliability of 345 kV offsite circuit Startup Transformer XST2 which is common to both CPSES units. NRC approval of this request would allow sufficient time to perform preventive maintenance on the XST2 transformer while both units remain at power. This change applies to both CPSES Unit 1 and Unit 2. t TX