3 ms·
One should however mention that the failing sensor gave an "unreliable airspeed" warning. The checklist for that requires a designated power setting as well as
by chopin 7y ago
One should however mention that the failing sensor gave an "unreliable airspeed" warning. The checklist for that requires a designated power setting as well as a designated pitch for which the airspeed is known for the altitude. Afaik the pilots executed that checklist at least for the power setting part before moving to the stab trim runaway memory item. The failing AoA sensor triggered several checklists to work on.
From an armchair perspective a checklist for AoA sensor failure would have been required for the flight to end safely (maybe with "cutoff stab trim" on the list).
- salawat 7y agoThis would have been complicating in Boeing's attempt to get the plane certified without simulator training, as it would have raised inconvenient questions as to why a previously non-safety-critical sensor suddenly needed a checklist, which would have kicked off a chain of very difficult and expensive to remediate questions upon a more in-depth, impartial design review.