The United States Air Force is contemplating a firm fixed-price, indefinite-delivery requirements contract for the repair of B-2 Transponder Set-KU Bands, with a three-year base period and options for two additional one-year periods and a six-month extension. The work will be performed at the contractor's facility. The contract includes estimated quantities for major, minor, and no-fault-found repairs across the potential contract periods. No specific budget or award amount is provided in this description. The notice states that two approved sources exist, but that all responsible sources may submit a proposal for consideration.