Accident
A four-engine aircraft departed Kirtland Air Force Base (AFB) on an en route flight to Nellis AFB. Shortly after a nighttime takeoff from runway 08, Air Traffic Control (ATC) notified the crew that the aircraft's altitude was insufficient and directed them to turn right and gain height. Less than three minutes into the flight, the airplane struck the ground on a mountain slope in the Manzano Mountain Range, approximately 5 miles east of Kirtland AFB. The impact occurred at an altitude of 6,500 feet, less than 30 feet below the summit. The aircraft disintegrated upon impact, and all 20 occupants were killed.
Investigation
Investigators found no technical deficiencies in the aircraft's instruments. No structural failure or electrical system malfunction was identified. The examination revealed that the aircraft had rolled to the right to an angle of 30°, causing the right wing tip to strike the ground. The number 4 engine was torn off, and the aircraft crashed in a large explosion.
Probable Cause
According to the official findings, the flying crew neglected departure procedures due to intense fatigue and failed to follow the prescribed departure and climb track. The report states that no technical deficiencies, structural failure, or electrical system failure occurred.