Approach and Weather
During approach to Lagos-Murtala Muhammed Airport, the crew encountered poor weather conditions with heavy rainfall and strong winds.
Sequence of Events
The copilot was in command. The aircraft was too high on approach, so the captain assumed control and steepened the approach. Despite this, the aircraft remained too high over the threshold of runway 19L when it encountered a severe downdraft. The aircraft nosed down and struck the runway surface nose gear first. It bounced, veered off the runway to the left, rolled to the apron, and eventually collided with a parked Fokker F27 Friendship 200MP of the Nigerian Air Force, registered NAF908.
Damage and Occupants
Both the Twin Otter and the Fokker F27 were destroyed. One of the pilots on board the Twin Otter was killed, and all eight other occupants were injured.
Probable Cause
The probable cause, as determined by the investigation, is that the crew lost control of the airplane upon landing after the wind suddenly changed from 270° at 10 knots to 360° at 50 knots. Additionally, windshear was suspected.