What happened
Shortly after Galaxy Airlines Flight 203 lifted off from runway 16R, the first officer transmitted a request to make a left downwind pattern because the crew needed to return to the ground. The pilot then reported experiencing a heavy vibration within the aircraft. Air traffic control cleared Flight 203 for the requested maneuver, but shortly thereafter, the aircraft descended and crashed approximately one and a half miles from the runway.
The investigation
The investigation revealed that ground handlers had failed to properly close an air start access door while servicing the aircraft due to a disruption. Information obtained from the cockpit voice recorder indicated that after the door began vibrating, power was reduced in all four engines. Subsequently, the aircraft began buffeting and lost excessive altitude before power was restored.
Findings
The crash resulted in significant damage to property on the ground. When the aircraft crashed, a store and seven recreational vehicles were also damaged.