Congo Accident
It's unlikely that the IL-76 had any seats. The "passengers" were most likely sitting on the floor, or on the cargo, or just milling-about in the back.
The African landscape is littered with the wrecage of these old Russian junkers that have been put out to work by the Air Forces of the bankrupt republics of the former Soviet Union to earn hard currencies.
These airplanes are not maintained to any kind of standard and are frequently overloaded. They would not be allowed to operate in any country where they would be subjected to CAA scrutiny.
This story plays out time an again in Africa. Recall the Antonov that crashed into the marketplace in Kinshasa a few years ago.