ZA004 moving out of the 40-26 building at the Everett factory last night.
We’re moving two 787 Dreamliners into modification locations this week. What this means is we’re getting them ready for the “side-of-body” modification work.
Last night, the 787 team towed ZA004, the fourth flight-test airplane, over to Boeing’s temporary facility at Aviation Technical Services (ATS). This is an area just south of Paine Field.
We leased the hangar space from ATS so we could do the modifications more efficiently.
Airplane #4 backing into position at the ATS facility to prepare for modifications.
ZA002, the second flight-test airplane, moves later this week to a temporary structure on the Everett Flight Line, after it completes defueling and getting an aqueous wash.
Those steps are part of the preparation process, which also includes removing access doors so employees can get into the fuel tanks. The airplanes are jacked up, in order to maintain the critical alignment of the wings, and some systems, seals and fasteners are removed. The first two airplanes had fuel in the tanks so, of course, that had to be drained and the tanks thoroughly washed so the people can safely work inside.
By the way, the airplane that will fly first, ZA001, has completed its preps and is in a paint hangar right now, where it will get its “mod.”