102-33.350—Do we need approval from GSA to replace aircraft parts by exchange or sale?
No, you don't need approval from GSA to replace parts by exchange or sale. However, you must follow the provisions of this subpart and part 102-39 of this subchapter B. Replacement parts do not have to be for the same type or design of aircraft, but you must use the exchange allowance or sales proceeds to purchase aircraft parts to support your aviation program to meet the “similarity” requirement in part 102-39 of this subchapter B.