Most if nnot all US Airlines mandate the TCAS resolution be followed. Al ----- Original Message ----- From: "Jon Wright" <jwright@halcyon.com> To: <AIRLINE@LISTSERV.CUNY.EDU> Sent: Monday, July 08, 2002 8:41 PM Subject: Re: Pilot's instructions before crash contradicted > 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"? > > ------------------------------------------------------------------- > 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 >