The one, where the Boeing's TCAS would have generated a reversal?
The one, which would be flying only under guidance of appropriate staffed ATC?
The one with a defect radio?
If the Ueberlingen case is boiled down to the last seconds before the collision, tweaking any of the variables only a little would have prevented it.
Last edited by joernstu; 7th December 2007 at 16:03.
Reason: typo corrected