(d) Each turbine engine installation must be constructed and arranged to: (1) Result in carcass vibration characteristics that do not exceed those established during the type certification of the engine.
(e) A speed warning device for: (1) Turbine engine powered aeroplanes; and (2) Other aeroplanes for which VMO/MMO and VD/MD are established under 523.335 (b)(4) and 523.1505 (c) if VMO/MMO is greater than 0.8 VD/MD.