Airman 1st Class Graham Robinson repairs damage to a C-17 engine that occurred in flight en route from Haiti during a humanitarian relief mission Jan. 19. The C-17 will be tasked for another mission to Haiti later this week once the maintenance has been performed. The joint and coalition relief efforts to Haiti have been non-stop since the 7.0-manitude earthquake that occurred Jan. 12. (U.S. Air Force Photo/Airman 1st Class Lauren Main)

Airman 1st Class Graham Robinson repairs damage to a C-17 engine that occurred during a flight back to Charleston AFB from Haiti during a humanitarian relief mission Jan. 19. The C-17 belongs to McChord Air Force Base and is one of many C-17s tasked for relief missions. (U.S. Air Force photo/Airman 1st Class Lauren Main)

Airman 1st Class Graham Robinson performs maintenance on a C-17 engine here after a reverse engine thruster is damaged in flight en route from Haiti back to Charleston AFB Jan 19. The C-17 from McChord Air Force Base was recently repaired and is one of many C-17s tasked for relief missions.The humanitarian efforts have been both joint and coalition. Airman Robinson is an aircraft maintenance technician assigned to the 437th Aircraft Maintenance Squadron. (U.S. Air Force photo/Airman 1st Class Lauren Main)

A C-17 engine undergoes maintenance here after a reverse engine thruster is damaged in flight en route from Haiti back to Charleston AFB Jan 19. The C-17 is based out of McChord Air Force Base and is one of many C-17s tasked for relief missions. (U.S. Air Force photo/Airman 1st Class Lauren Main)

Airman 1st Class Graham Robinson performs maintenance on a C-17 engine here after a reverse engine thruster is damaged in flight en route from Haiti back to Charleston AFB Jan 19. Charleston AFB is currently operating as a hub for flights to Haiti, putting Charleston maintainer's skills to the test to keep them flying. Airman Robinson is an aircraft maintenance technician assigned to the 437th Aircraft Maintenance Squadron. (U.S. Air Force photo/Airman 1st Class Lauren Main)

Airman 1st Class Graham Robinson grips a pair of safety wire pliers during a repair on a C-17 engine here after a reverse engine thruster is damaged in flight en route from Haiti back to Charleston AFB Jan 19, in support of humanitarian relief operations. The humanitarian efforts are both coalition and joint and have been running around the clock since the 7.0-magnitude earthquake which occurred Jan. 12. Airman Robinson is an aircraft maintenance technician with the 437th Aircraft Maintenance Squadron. (U.S. Air Force photo/Airman 1st Class Lauren Main)