There is another possibility: because the first leg plane was late, it missed the pushback at 09:40 and then again 09:56 and the ATC put the plane at the end of

There is another possibility: because the first leg plane was late, it missed the pushback at 09:40 and then again 09:56 and the ATC put the plane at the end of the queue for takeoff until 10:48. ~~Though I can't imagine Lisbon to be such a busy airport to have an hour-long queue of departures, who knows.~~[1] In any case, if ATC denied takeoff/pushback because Air France missed the schedule, AF could not blame the ATC. [1]: haha, couldn't be more wrong: "It is one of the most congested airports of Europe" according to https://en.wikipedia.org/wiki/Lisbon_Airport https://en.wikipedia.org/wiki/Lisbon_Airport