Originally Posted by
JumpJumpJump
Where are you going with this? Are you saying that after 13 Seconds AC should have been/was higher than what is being clainmed here, or are you sugesting that AC took a long time to react? Or something else?
13 seconds seems reasonable between "go around" being said and UA001 commenting; given the exchange after the go around was initiated between AC and ATC, and then a pause to check that there was nothing else to be said between AC and ATC by ua001 to not step on AC/ATC.
Reasonable ? Just think about it:
T0 GA instruction given
T0+??s AC crew pushes throttles to TOGA
T0+?s A320 gets a positive climb rate
T0+ 10s (presumably): AC759 roars up 100ft above UA001
T0+ 13s: astonished UA001 reports the close call
According to the AVH quoting the Canadian TSB:
AC-759 had already overflown taxiway C by about 0.25nm when ATC instructed the aircraft to go around !
Based on a quick calculation: when ATC instructs to abort landing, AC759 and UA001 are horizontally 8-10 seconds from each other (600-800m ie. less than 0.5 NM) with seriously converging altitudes. Tiny margin left at that point
And a 789 taxiing towards you followed by more airliners at night is a arguably a pretty visible sight. How could AC759 be so severely confused to the point to having to wait the ATC
in extremis instruction ?
Looking forward to the full report.