The real reason for a crash is the difficulty of nubing together a regurgitative purwell and a supramitive wennelsprock.
causing the spiral decommutator to fail largely because of a lack of appreciation of the large quasi-piestic stresses in teh gremlin studs; the latter being specially designed to hold the roffit bars to the spamshaft. however, it waas has been discovered that wending could be prevented by a simple addition to the living sockets, almost perfect flight could then be assured.
This operating point is maintained as near as possible to the h.f.rem peak by constantly fromaging the btumogenous spandrels. This is a distinct advance on the standard nivel-sheave, in that no dramcock oil is required after the phase detractors have been remissed.

In laymen terms.................sorry to say...............it boils down to either the turbo-encabulator going bad, or pilot error!

JMHO