Digital flight data recorders for transport category airplanes.
CFR · 2024-01-01 · US · Title 14
(a) Except as provided in paragraph (l) of this section, no person may operate under this part a turbine-engine-powered transport category airplane unless it is equipped with one or more (1) Time; (2) Pressure altitude; (3) Indicated airspeed; (4) Heading—primary flight crew reference (if selectable, record discrete, true or magnetic); (5) Normal acceleration (Vertical); (6) Pitch attitude; (7) Roll attitude; (8) Manual radio transmitter keying, or CVR/DFDR synchronization reference; (9) Thrust/power of each engine—primary flight crew reference; (10) Autopilot engagement status; (11) Longitudinal acceleration; (12) Pitch control input; (13) Lateral control input; (14) Rudder pedal input; (15) Primary pitch control surface position; (16) Primary lateral control surface position; (17) Primary yaw control surface position; (18) Lateral acceleration; (19) Pitch trim surface position or parameters of paragraph (a)(82) of this section if currently recorded; (20) Trailing edge flap or cockpit flap control selection (except when parameters of paragraph (a)(85) of this section apply); (21) Leading edge flap or cockpit flap control selection (except when parameters of paragraph (a)(86) of this section apply); (22) Each Thrust reverser position (or equivalent for propeller airplane); (23) Ground spoiler position or speed brake selection (except when parameters of paragraph (a)(87) of this section apply); (24) Outside or total air temperature; (25) Automatic Flight Control System (AFCS)
official document · source cfr-2024 · id 14:§ 121.344