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Old 20th May 2010, 11:05
  #34 (permalink)  
Interflug
 
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"According to Russian experts, the main cause of the accident were the mistakes of the Polish pilots who committed them when landing. The first was to start the approach to inaccurate navigation system, a/c in autopilot mode, which was categorically wrong. Set the machine to the beginning of the glide path, for which, according to his calculations, aircraft had to descent, the commander set the autopilot V mode to descent speed of 4 m / s and started landing, assuming that at these parameters chassis touch the ground at the beginning of the strip. Meanwhile, the navigator was checking the altitude of the aircraft by radio altimeter - a device which determines the distance to the ground by radio signal reflected from it. Fatal role in the crash, according to experts, played a rather flat and a long valley with depth of about 40 m, located across the glide path, and the inexperience of the navigator. When the plane was flying above the bottom of the valley and the ground began to go down, navigator panicked and began to constantly tell the commander that they are above the glide path and do not descent. The commander, in turn, trusted his subordinate and increased - doubled - the vertical rate of descent - up to 8 m / sec. Valley under the glide path in the meantime was over, replaced by a prolonged rise of the hill, and the pilots forgot to increase the vertical velocity...


If this is indeed what happened, then we don't need to talk about the crash anymore but what makes pilots play Russian Roulette with all except one chamber full of bullets
while being trusted with the lifes of 100 people. Even if you are pressured to land in bad conditions, is this how you exercise basic airmanship?

The navigator shouting that the plane did not descent, while in fact the terrain was dropping, was inexperienced? For Gods sake, you are not supposed to make such a mistake after being a certified navigator with even zero hours of practical experience yet.

The pilot did not look at his altimeter and vertical speed indicator, to cross check if they were actually descending? Hard to imagine...
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