Investigation Summary
The mishap occurred during a practice routine for an upcoming aerial display. The aircraft was operated by the 3rd Wing (Active Duty) in partnership with the 176th Wing (Alaska Air National Guard). After taking off from Runway 06, the pilot performed an initial climb and a left turn, followed by a sharp, aggressive right turn. During this maneuver, the aircraft's bank angle and airspeed reached a point where the stall warning system activated. The pilot did not initiate the required stall recovery, instead continuing the turn. The aircraft entered a stall at an altitude too low for recovery. The Accident Investigation Board (AIB) noted that the pilot's overconfidence and the crew's channelized attention led to a breakdown in standard operating procedures. The report also highlighted a failure in the chain of command to oversee and curb unsafe flying practices, drawing parallels to the 1994 Fairchild B-52 crash. The wreckage came to rest near the Alaska Railroad, causing a suspension of rail services due to debris and track damage.
Final Conclusions
The Air Force Accident Investigation Board, led by Brig. Gen. Carlton D. Everhart II, concluded that the primary cause was pilot error. The pilot placed the aircraft outside established flight parameters and failed to respond to stall warnings. Contributing factors included the co-pilot and safety observer's failure to recognize the developing dangerous situation, misplaced motivation, and inadequate program oversight by the unit's leadership. The findings were signed on December 10, 2010, and publicly released between December 11 and December 13, 2010.
Photographic Evidence (1)
Video Analysis
Air Force C-17 Crashes Just After Takeoff in Alaska — Analysis of the 2010 C-17 Globemaster III crash at Elmendorf Air Force Base during air show practice, focusing on the pilot's aggressive maneuvering and the resulting low-altitude stall.
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Systems & Failure Modes
Stall Warning System
A system designed to provide aural and tactile alerts to the crew when the aircraft approaches a critical angle of attack; in this event, the system functioned correctly but was ignored by the pilot.
Flight Control System
The C-17 uses a fly-by-wire system; the investigation found the pilot operated the aircraft outside the established parameters of this system during the aggressive turn.
Interesting Facts
- 01The crash was the first fatal accident involving a C-17 Globemaster III.
- 02The aircraft was named 'Spirit of the Aleutians'.
- 03The crash caused a fireball that rose approximately 750 feet into the air.
- 04Debris from the impact damaged a portion of the Alaska Railroad tracks.
- 05The Arctic Thunder Air Show proceeded as scheduled three days later as a tribute to the crew.
Safety Actions & Advisories
Aerial Display Oversight
The USAF emphasized the need for stricter command oversight of aerial display profiles to ensure pilots do not deviate from approved flight envelopes.