From a comment on avherald: > It is being discussed at American that as the aircraft was at rotation, JFK Ground had cleared a heavy jet into the ramp and he u

From a comment on avherald: > It is being discussed at American that as the aircraft was at rotation, JFK Ground had cleared a heavy jet into the ramp and he used a great deal of power to get moving. His jetblast, coming from a 90 degree angle to flight 300 on takeoff, is being considered a factor in the roll of the Airbus as it lifted off causing the displacement from the runway and the wingtip drag. > Powerful taxi thrust could most certainly be an factor. Many years ago I witnessed a DC-10 literally blow a small aircraft up and onto its nose, then onto its back during landing with the thrust of those DC-10 engines powered up while exiting the runway and turning 180 degrees.