Wow, the dash-8 begins to move into the runway at 2:48, and then sits there for the rest of the time. It's really hard to spot this from this video going forwa

Wow, the dash-8 begins to move into the runway at 2:48, and then sits there for the rest of the time. It's really hard to spot this from this video going forwards, but it you got backwards from the crash you can see the lights from the dash-8 and work out when it got onto the runway. Maybe the coast guard pilot thought he had permission to line up, but not to take off? Anyways, it's also pretty easy to see that it would have been difficult for the tower staff and the A350 pilots to notice the incursion and avoid the accident.