; or (B) the airport or a fixed-base operator at the airport does not allow a pilot unescorted access to the pilot's transient general aviation aircraft that is parked on the transient apron described in subsection (a). (2) Covered airport The term covered airport means an airport that is a public use airport and has— (A) received a grant under section 48103 or chapter 471 at any time during the most recent 20-year period; or (B) been the recipient of a Federal property conveyance. (3) Fixed-base operator The term fixed-base operator means a business granted the right by an airport sponsor or heliport sponsor to operate on an airport or heliport and provide aeronautical services, including fueling and charging, aircraft hangaring, tiedown and parking, aircraft rental, aircraft maintenance, and flight instruction. (4) Public use airport The term public use airport has the meaning given that term in section 47102. (5) Transient general aviation aircraft The term transient general aviation aircraft means an aircraft, not owned or operated by an air carrier or foreign air carrier, that is seeking to park temporarily at an airport. . (b) Clerical amendment The analysis for chapter 401 of title 49, United States Code, is amended by inserting after the item relating to section 40130 the following: 40131. Apron access for transient general aviation aircraft. .