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27th Feb 2009, 01:02

#553 (permalink)

Broomstick Flier

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ADS-B plot

ZeeDoktor,

Indeed very interesting piece of information.

Not a 737 jockey myself, but the app looked fairly normal until 600ft (09.25.08Z), in regards to glide path and speed.

I`d speculate that something odd happened just afterwards, as the speed starts to decay. I see the following happening: Down to 600ft all working well and aircraft being flown with A/P and A/T engaged. Shortly afterwards, around 500ft the automatics are disengaged and for some unknown reason(s) proper speed management was not maintained, or maybe they assumed the A/T was still engaged when it was not. The mistake was only noticed very late down the approach and they were caught without options on a low energy/low altitude scenario.

Perhaps they even tried to initiate a GA (some survivors stated a sudden increase in engine power shortly before impact, if I recall correctly ) and hit the tail in the process.

Cheers,

Broomstick Flier

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