Boeing said it has demonstrated changes to the
plane during sessions with the FAA in a flight
simulator. It still must show regulators those
changes during one or more certification flights.
Boeing’s expectations around the timing of the
Max’s return have proven too optimistic many
times before. Even after the FAA approves a
training regimen, airlines will need time to retrain
pilots, and they plan to conduct flights — likely
with executives and reporters on board — to
demonstrate to the public that the plane is safe.