Tim Dawson........Best comment so far
ATC Watcher
"the757 crew responded correctly (to TCAS) and the Tu154 did not"
Yes?
But you fail to say that:
757 crew responded incorrectly to ATC, while the TU154 responded correctly to ATC,
they were on the same frequency, weren't they?
This accident actually proves that almighty TCAS is not fail-safe at all.
You need one or both or more aircraft to obey TCAS command,
to get out of a collision
but if one of them starts dangerous direction descent or climb,
here you have it...