Possibly unrelated:
However, a Viscount crashed and killed all on board after take-off from Sydney in the late fifties. Butler Air Transport (BAT). Severe thunderstorms were present.
Strongly suspected by people close to the operation (but not adressed in the subsequent official report), was that the overhead CB and switch panel unlatched and swung down on the hinges, sconning the pilots.
411. Ansett had a check captain who put a Friendship on its roof at Launy Tasmania many moons ago. Pitch Lock on descent, overcooked approach with (late) attempted go-round---or something???
The big wheel was given a spin and he was----------PROMOTED.