Fonte: https://www.flightglobal.com/safety/a220-crew-missed-low-thrust-indications-during-laboured-take-off/137216.article
Investigators probing a Swiss Airbus A220 low-thrust incident during departure at Porto found that the pilots only belatedly realised that the autothrottle had not engaged before the take-off roll.
Swiss investigation authority SUST found the A220-300, bound for Geneva, had conducted a de-rated rolling take-off from intersection C of runway 35, with its autothrottle armed.
But when the captain advanced the thrust levers, he only pushed them to a lever