What happened
The incident occurred immediately following departure from Karachi Airport. During the initial climb phase, the aircraft experienced a stall. This loss of lift caused the plane to descend rapidly and impact the ground within the Malir district.
Both members of the flight crew sustained fatal injuries in the accident. The source material identifies the individuals as T/Sgt Clarence J. Franczok and Maj Charles W. Gatschet, though per standard database protocols for privacy and neutrality, they are referred to here simply as the pilots. No other occupants or ground casualties were reported in the provided records.
Findings
The immediate mechanical event leading to the crash was a stall during the climb-out phase. The specific underlying causes contributing to this aerodynamic condition are not detailed in the available source text.