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Old 3rd Jan 2017, 06:22
  #95 (permalink)  
megan
 
Join Date: Mar 2005
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A good example of pressure vs decision making is a subtle engine failure on final in a turboprop.

If done correctly while the levers are back on idle, the speed loss which occurs before recognition and corrective action can be significant.

I've seen this stuffed up many times where crew instinctively begin to run out of airspeed, and eventually start decide to push up the operating engine and go around. As the loss of control approaches, the only thing to be done is reduce the operating engine power.
Sort of like F-27 FNH.
Just prior to turning for finals, trouble was experienced in the pitch-lock mechanism of the no. 1 prop. The prop was feathered and the approach was continued with full flaps, but without immediately increasing power on the remaining engine. The high rate of descent was not arrested during the turn, resulting in a slightly low altitude. Power was added and speed reduced to control the descent rate, but the crew were unable to maintain runway heading. An overshoot was attempted, but the speed had dropped below minimum control speed. The left wing dropped as full power was applied to the no. 2 engine. The wing struck the ground and the aircraft crashed, coming to rest 740 feet abeam the runway threshold. Fuel tanks ruptured and caused a fire, which was quickly extinguished.
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