View all text of Subpart V [§ 121.681 - § 121.713]
§ 121.685 - Aircraft record: Domestic and flag operations.
Each certificate holder conducting domestic or flag operations shall maintain a current list of each aircraft that it operates in scheduled air transportation and shall send a copy of the record and each change to the responsible Flight Standards office. Airplanes of another certificate holder operated under an interchange agreement may be incorporated by reference.