The US Air Force got parts from its ‘boneyard’ to put its biggest plane back into service
Repaired C-5s sent to Houston for hurricane relief efforts

By Christopher Woody
On July 17, Air Mobility Command chief Gen. Carlton Everhart ordered all 18 of the Air Force’s C-5 cargo planes at Dover Air Force Base to halt operations and undergo inspections after two of the aircraft had landing-gear malfunctions in less than a 60-day period.
Two days later, Everhart extended the stand-down to all 56 of the Air Force’s C-5s, ordering them all to undergo maintenance assessments.
The ball-screw assembly on the C-5 Galaxy, the largest plane in the Air Force, was causing problems with the landing gear’s extension and retraction, according to Air Force Times.
The C-5’s nose landing gear uses two ball-screw drive assemblies working together to extend and retract, according to the Air Force. If one of the assemblies doesn’t work, the gear can’t operate. (The Dover stand-down came a little over a year after the C-5M Super Galaxies stationed there achieved the highest departure-reliability rate in their history.)
Inspections revealed that the parts needed to fix the malfunctions are no longer made. But, Everhart told Air Force Times, maintenance personnel were able to get the needed parts from the aircraft “boneyard” belonging to the 309th Aerospace Maintenance and Regeneration Group at Davis-Monthan Air Force Base near Tucson, Arizona.
