Originally Posted by
Machinbird
If the flap handle design was intended to prevent direct selection to up from flaps 28, then wear or failure of some part of a mechanical interlock could be considered a system problem followed by the aircrew not realizing in time what they had (inadvertently) done wrong.
This is essentially what is being reported, isn't it?
Where have you seen it reported that inadvertent flap selection was the cause of the accident?