Either it struck something on the ground or the well trained mechanics in Nigeria forgot to fasten part of the cowling. The engine did not “blow up” the nacelle blew to pieces and part of it struck the vertical. Judging by the turbofan rotating freely, no blood or feathers, no signs of flames, I am putting my money on a failure of proper maintenance and an oversite by the ground crew. OR. Maybe it hit a weather balloon. Hard to guess with the damage to the vertical.
Shhhhhhh! Pretty sure flying with one motor is built in. 🤔