14 C.F.R. § 23.1335 Flight director systems.
Title 14 - Aeronautics and Space
If a flight director system is installed, means must be provided to indicate to the flight crew its current mode of operation. Selector switch position is not acceptable as a means of indication. [Amdt. 23–20, 42 FR 36969, July 18, 1977]
Title 14: Aeronautics and Space
PART 23—AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES
Subpart F—Equipment
Instruments: Installation
§ 23.1335 Flight director systems.
