A conveyance is eligible for recording under this subpart only if, in addition to the requirements of §§49.11, 49.13, and 49.17, the following requirements are met:

(a) It affects and describes an aircraft engine or propeller to which this subpart applies, specifically identified by make, model, horsepower, and manufacturer's serial number; and

(b) It is accompanied by the recording fee required by §49.15, but there is no fee for recording a conveyance named in §49.41(c).