Originally Posted by
Speed of Sound
Did Boeing prepare the 787’s for return to service in 2013?
I would assume that this would be done by the airline’s own maintenance staff.
There are hundreds of undelivered MAX aircraft sitting at airports all around the Puget Sound, as well as Moses Lake and a few other places.
By regulation, those aircraft have to be in the certified, airworthy configuration prior to delivery - so Boeing has to perform whatever work needs to be done prior to delivery.
Depending on the nature of the changes, it's not uncommon for Boeing to provide assistance to the operators in modifying the aircraft that have previously been delivered.