[Code of Federal Regulations] [Title 14, Volume 1] [Revised as of January 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR49.51] [Page 911-912] TITLE 14--AERONAUTICS AND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 49--RECORDING OF AIRCRAFT TITLES AND SECURITY DOCUMENTS--Table of Contents Subpart E--Encumbrances Against Air Carrier Aircraft Engines, Propellers, Appliances, and Spare Parts Sec. 49.51 Applicability. This subpart applies to the recording of the following kinds of conveyances: (a) Any lease, a notice of tax lien or other lien (except a notice of Federal tax lien referred to in Sec. 49.17(a), and any mortgage, equipment trust, contract of conditional sale, or other instrument executed for security purposes, which affects title to, or any interest in, any aircraft engine, propeller, or appliance maintained by or on behalf of an air carrier certificated under section 604(b) of the Federal Aviation Act of 1958 (49 U.S.C. 1424(b)) for installation or use in aircraft, aircraft engines, or propellers, or any spare parts, maintained at a designated location or locations by or on behalf of such an air carrier. (b) An assignment or amendment of, or supplement to, an instrument named in paragraph (a) of this section. [[Page 912]] (c) A release, cancellation, discharge, or satisfaction of a conveyance named in paragraph (a) or (b) of this section. [Doc. No. 1996, 29 FR 6486, May 19, 1964, as amended by Amdt. 49-5, 35 FR 802, Jan. 21, 1970]