Originally Posted by
Smythe
More from Seattle Times:
Tajer said the American pilots were told in the meeting that on the flight deck of their 737 MAXs, the AOA disagree light would have lit up on the ground and so, because that’s a “no-go item,” the plane wouldn’t even have taken off.However, Tajer said that within the last two to three weeks, “we are now learning that, unlike Boeing told us in November, the warning light actually is inhibited on the ground.”
“We are being told by Boeing that the AOA Disagree Alert … is inhibited until 400 feet above ground level,” he said Sunday. “We are currently awaiting written confirmation of this AOA Disagree Alert limitation as it is not detailed in any 737 flight crew manual.”
https://www.seattletimes.com/busines...t-told-no-one/
That statement about the first meeting seems really wrong. The AOA won't work without the plane moving through the air (preferably in the direction the nose is pointed). Because the vane has a counterweight inside it will be more than happy to sit at a random angle, until somewhere during the T/O roll the will start indicating AOA. The 400' sounds more reasonable to me, as it will give time for factors as side-slip due to crosswind T/O to dissipate.
The biggest issue for me is that again there is a system that is incompletely in the Boeing FCM.