John, Unless they have made some radical improvements since I retired TCAS doesn't communicate with the controllers. Don't they use flight progress strips? It would seem as though the strip postings would have shown a potential conflict before the controler even worked the aircraft. DoDo just doesn't happen. Al ----- Original Message ----- From: "John Kurtzke" <kurtzke@up.edu> To: <AIRLINE@LISTSERV.CUNY.EDU> Sent: Saturday, July 20, 2002 1:19 PM Subject: Re: NYTimes.com Article: Doomed Planes Tried to Avoid Collison > Does TCAS communicate with ATC? If not, this crash makes it look like it > should. What is the sense of a system figuring out what the two planes > should do, tell each other, and not tell ATC automatically. > > john > > On Sat, 20 Jul 2002, Grant McKenzie wrote: > > > Hi Scotty, > > > > Long time no natter. > > > > It's sounding more and more like the Swiss ATC guy screwed up. Or, more > > accurately, the system screwed up and the poor sod up the sharp end was > > left wearing it. A mate of mine who was over in Geneva for a ATC > > conference a couple of years back and was taken to the ATC simulator > > which also takes a live feed from Eurocontrol, including the sector in > > question and he said it is a hellishly complicated piece of airspace. > > > > > > Grant > > SYD > > QF > > > > Scotty wrote: > > > > > ----- Original Message ----- > > > From: "Grant McKenzie" <grantmckenzie@optushome.com.au> > > > To: <AIRLINE@LISTSERV.CUNY.EDU> > > > Sent: Saturday, July 20, 2002 11:55 AM > > > Subject: Re: NYTimes.com Article: Doomed Planes Tried to Avoid Collison > > > > > > > > > > > >>When I worked in ATC, a command from the ground was supposed to have > > >>priority. I would imagine Bashkirian Airlines (if their chief > > >>pilot/regulatory overseer were doing their job properly and, with all > > >>due respect to Scotty's passions on the subject of all things Russian, > > >>I'm not convinced was a given) would have a compliance instruction > > >>written into their operations manuals. > > >> > > > > > > It is written into their manual from what I was told by a Tu-154 navigator. > > > KrasAir has it written into their ops manual, and he told me that it appears > > > that BAL has it written into theirs as well. This is why I stated that > > > Russian officials were 100% correct. > > > > > > > > > > -- > John F. Kurtzke, C.S.C. > Department of Mathematics > 278 Buckley Center > University of Portland > Portland, OR 97203 > 503-943-7377 > kurtzke@up.edu >