Incident Overview
During descent to Port Harcourt Airport, the pilot-in-command established visual contact with the runway lights at an altitude of 2,500 feet. The approach was continued shortly thereafter. While the crew believed their altitude was 390 feet, the aircraft collided with trees.
Go-Around Attempt
The captain initiated a go-around procedure. However, all four engines failed to respond properly. The aircraft continued to descend and struck the ground 250 meters short of the runway threshold.
Impact and Damage
Upon impact, the undercarriage was torn off. The aircraft slid for several dozen meters before coming to rest. The aircraft was damaged beyond repair. All four crew members escaped uninjured.
Approach Instability
It was reported that the aircraft was unstable on final approach.