14 C.F.R. § 25.1147 Mixture controls.
Title 14 - Aeronautics and Space
(a) If there are mixture controls, each engine must have a separate control. The controls must be grouped and arranged to allow— (1) Separate control of each engine; and (2) Simultaneous control of all engines. (b) Each intermediate position of the mixture controls that corresponds to a normal operating setting must be identifiable by feel and sight. (c) The mixture controls must be accessible to both pilots. However, if there is a separate flight engineer station with a control panel, the controls need be accessible only to the flight engineer.
Title 14: Aeronautics and Space
PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES
Subpart E—Powerplant
Powerplant Controls and Accessories
§ 25.1147 Mixture controls.
