This is a limited source requirement for the repair of one specific generator control unit, where the government lacks the data to contract with anyone other than the current source. The contract includes an initial induction period of 365 days from award, with a government option to extend it by an additional 365 days for a total potential performance period of two years. The contractor must propose pricing for a maximum of 10 units over the entire contract period, with separate pricing required for the second year if costs will change. The total contract value will be calculated using the highest proposed unit price multiplied by the maximum of 10 units. Offers from sources not already approved must include a complete source approval submission with their proposal.