Engine control systems.

CFR · 2024-01-01 · US · Title 14

(a) (b) (i) Enables selected values of relevant control parameters to be maintained and the engine kept within the (ii) Complies with the operability requirements of §§ 33.51, 33.65 and 33.73, as appropriate, under all likely system inputs and allowable engine power or thrust demands, unless it can be demonstrated that failure of the control function results in a non-dispatchable condition in the intended application; (iii) Allows modulation of engine power or thrust with adequate sensitivity over the declared range of engine operating conditions; and (iv) Does not create unacceptable power or thrust oscillations. (2) (c) (i) The engine does not exceed any of its operating limitations; (ii) The engine does not surge, stall, or experience unacceptable thrust or power changes or oscillations or other unacceptable characteristics; and (iii) There is a means to alert the flight crew if the crew is required to initiate, respond to, or be aware of the control mode change. The means to alert the crew must be described in the engine installation instructions, and the crew action must be described in the engine operating instructions; (2) The magnitude of any change in thrust or power and the associated transition time must be identified and described in the engine installation instructions and the engine operating instructions. (d) (1) The rate for Loss of Thrust (or Power) Control (LOTC/LOPC) events, consistent with the safety objective associated with the intended application can b

official document · source cfr-2024 · id 14:§ 33.28