14 CFR 49.33 - Eligibility for recording: general requirements.
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 is in a form prescribed by, or acceptable to, the Administrator for that kind of conveyance;
(b) It describes the aircraft by make and model, manufacturer's serial number, and United States registration number, or other detail that makes identification possible;
(c) It is an original document, or a duplicate original document, or if neither the original nor a duplicate original of a document is available, a true copy of an original document, certified under § 49.21;
(d) It affects aircraft registered under 49 U.S.C. 44101-44104; and
(e) It is accompanied by the recording fee required by § 49.15, but there is no fee for recording a conveyance named in § 49.31(b).