The Aviation Herald describes the sequence of events leading up to the crash:
Several observers on the ground reported the National Air Cargo Boeing 747-400 had just lifted off and was climbing through approximately 1200 feet when it’s nose sharply rose, the aircraft appeared to have stalled and came down erupting in a blaze.
METARS – weather reports intended primarily for aviation purposes – show a nearby thunderstorm and swirling winds coincided with the takeoff. From Aviation-Safety.net:
A thunderstorm with Cumulonimbus clouds was approaching the air base at the time of the accident. A weather report shows winds began shifting from 100 degrees [from the east] at 09:55 UTC to 350 degrees [from the north] at 10:55 UTC. Accident time was about 15:00 LT / 10:30 UTC
“One army spokesperson said the crash occurred due to low altitude after takeoff,” reports Business Insider, which quotes a pilot who says a cargo shift may have contributed. Whether it was the weather, loose cargo, and/or other factors that prevented the plane from gaining altitude will presumably be determined in crash assessments.
Below is a terrifying video of the crash obtained from a car’s dashboard camera. C
Caution: it is very disturbing footage which may upset some viewers. Also, it contains an expletive around 1 minute and 13 seconds into the video.