I also commented on the Turkish thread, and like you, went away and did some googling. No definitive answers, but the closest I got to common sense was this…..
“ FWIW, whenever one checks FLIFO (flight info) for a trip via a reservation system, four times are recorded:
OUT – time OUT of the gate
OFF – time OFF the ground
ON – time ON the ground (touchdown)
IN – time IN the gate
It is my understanding that the time IN/OUT is recorded (at least in SABRE) automatically (as mentioned previously) when the brakes are applied/released. “
It’s my considered opinion that airlines will muddle the figures to suit their own purposes. If they want to stress their on-time credentials I’m convinced they’ll use the OUT & ON figures. If their penalising their contractors, they’ll quote their OFF & in times.
As an aside, FRightmare proudly celebrates they’re on time as soon as the cabin crew can press the
always worth a listen : )