Originally Posted by
eng3
I wonder if they accidentally had the wrong runway programmed into the computer.
I've never flown the Airbus, but having 28L programmed for departure shouldn't have produced a left turn on the TRUKN departure. On the 737, it would fly liftoff track until LNAV engaged then make a right turn to TYDYE. Even if LNAV engaged a bit below 520', it would start to roll left, hit 520', then turn right to TYDYE.
Originally Posted by
findark
Winds were read out as 260 at 21 on the takeoff clearance. I'd be curious to know what the overall flow pattern was that day, as it gives some credence to the idea that the crew was at some point told to expect a 28 departure.
There is no crosswind limit. The demonstrated crosswind for takeoff in the 737 with simitar winglets is 33kts on a dry runway. Landing is 37kts.
That would be a very small amount of tailwind. Tailwind is a limit. For takeoff on the 737 it is 15kts. That would more likely have been limited by performance on 1R.
I'm not sure what programming mistake would cause a left turn like that.