On Mon, 8 Jul 2002, Roger James wrote:
> BERLIN (AP) A Russian pilot received contradictory instructions before
> crashing into a cargo plane over Germany last week, German investigators
> said Monday after reviewing voice recorders from the two jets. The voice
> recorders show that a Swiss air traffic controller's order for a Russian
> pilot to descend contradicted the cockpit warning system's command for the
> Tu-154 to climb, the investigators said. The automatic cockpit warning
> systems issued simultaneous instructions for the Russian passenger jet to
> climb and a cargo jet to descend about 45 seconds before they ultimately
> collided over southern Germany, killing all 71 people on board.
Is this how TCAS is supposed to work--issuing coordinated instructions
to the different planes in conflict to maximize evasive manuevers? What
are pilots trained to do when given instructions from ATC that are
counter to a TCAS TA? Would the DHL 757's TCAS started doing anything
different when it figured out the Tu-154 was descending too--like,
go from "Descend" to "Dive"?
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Jon Wright jwright@halcyon.com voice 425-635-0338
fax 425-844-1403
You've got a hard lip, Herbert. http://www.spudboy.com/~jwright