When I was flying the Brasilia, we had a crew report a dual engine failure on short final.
Turns out the left engine erroneously autofeathered itself. The burst of thrust as the prop coursened yawed the nose to the right. The crew interpreted that as a right engine failure and feathered the right one....
I can believe that. During a dual instruction session at Canberra in a RAAF HS 748 the pilot was conducting an instrument take off from brakes release.
He was briefed the instructor would give him a simulated engine failure at lift off by pulling back a throttle. As the 748 became airborne, the instructor quickly closed the left engine throttle. The pilot immediately detected a yaw and pushed hard on the wrong rudder (as it turned out).
The aircraft yawed very sharply but fortunately the instructor managed to take over and get the wings level.
What happened was that when the instructor closed the left throttle very quickly, the propeller momentarily coarsened,causing the aircraft to initially yaw in the opposite direction than expected by the pilot under the hood. Throughout the take off roll he had his concentration pinned on the compass heading and detected the swing on the compass heading and reacted to the swing quickly and correctly.
All this happened in less than two seconds and his corrective rudder was instantaneous. A fraction of a second later the aircraft then swung strongly in the direction of the simulated failed engine and was not exactly helped by rudder in the same direction no matter how momentary.
Pulling throttles quickly in a turbo-prop aircraft especially near the deck can lead to an unpleasant surprise and the recent fatal accident at Darwin proves that.