Originally Posted by kaokao
He engaged the autothrottle ON and put the throttle lever back fully in order to gain the thrust. Then NO power increase at engine.
kaokao
I know English is not your first language, however, the sentence you have provided, if true, would explain the cause of the accident.
In English, "back" can also mean aft or toward the tail of the aircraft. This is the go-slow (idle thrust) throttle position.
The FDR data includes throttle position data. It should not be a long wait before you can actually see what happened with the throttles in a preliminary NTSB report.
I do not believe that these pilots had a reversed throttle reflex.
But do not expect these pilots to come out heroes.