(a) This part applies to the recording of certain conveyances affecting title to, or any interest in—

(1) Any aircraft registered under 49 U.S.C. 44101-44104;

(2) Any specifically identified aircraft engine of 550 or more rated takeoff horsepower, or the equivalent of that horsepower;

(3) Any specifically identified aircraft propeller able to absorb 750 or more rated takeoff shaft horsepower; and

(4) Any aircraft engine, propeller, or appliance maintained by or for an air carrier certificated under 49 U.S.C. 44705,for,aircraft,or,or,maintained.

(b) Subpart B of this part governs, where applicable by its terms, conveyances subject to this part.