flight 1951..

Fog. "Turkish 1951 cleared for ILS-approach runway 18L (note: not sure if it was 18L or 36R) wind is 10 knots heading 239." As normal; here goes the respond:"Turkish 1951 is cleared for ILS-approach runway 18L, wind is 10 knots heading 239 bye. The pilot sets the autopilot and radio for the autolanding. As the approach goes on, something happens: "To low, gear. To low, gear". This is a warning from GPWS (ground proximity warning system), which means you're flying to low. The pilots ignore it. Then the rudder starts to shake, as final warning for a possible crash. The pilot disengages the autopilot, to manualy give some throttle. It's to late. Turkish airlines 1951 has crashed just before the runway is was supposed to land on. 

What went wrong? Why did flight 1951 crash? The commision who was ordered to find out, has discovered an asnwer for all these questions. Most likely, the radio had an defect why it wasn't working correct. I'll try to explain.

An autolanding happends because of ceveral things. The autopilot is set to follow an ILS-signal. That is send from ground by a radiotransmitter, but large. The autopilot reads it's altitude from the radio. Most likely with DME (Distance measuring equipment, tells you how fast you are going, how high and what the distance between you and your target is. In case of flight 1951, the radio, which is supposed to receive the DME-signal, didn't work well. The radio said the airplane was flying -3 feet, that is possible because the runway lies just under sea-level, about 8 feet. The airplane thought: (not literally of course :P) "Let's land, I'm just above the runway". Well.. appearently not. The aircraft gave less throttle and did it's nose higher. That while it was still flying 680 meters above ground. 

This is most likely the cause of the crash. Thanks for reading and bye!!