What happened
A Dorn and Dornier 228 departed Lagos at 07:00 UTC, bound for Eket. During the descent from an initial cruise altitude of 11,000 ft, the crew coordinated with Port Harcourt Approach and Eket Control, eventually descending to 3,500 ft. Upon reaching the NDB, the crew initiated an approach procedure, maintaining 1,500 ft and performing a 45-degree procedure turn.
During the approach sequence, the crew attempted multiple maneuvers. After an initial approach to runway 01 resulted in an overshoot decision, a second attempt was made to maintain the MDA. A subsequent landing attempt was made for runway 19. As the aircraft approached the runway, the captain instructed the co-pilot to select flap 2 once the field was visible. Upon sighting the runway approximately 2nm out, the co-pilot configured the aircraft. The aircraft crossed the threshold at a height of 300ft with a speed between 95 and 98 knots.
Following touchdown, the captain attempted to use reverse pitch to slow the aircraft, but the maneuver produced no noticeable deceleration. Even after moving the throttles to the maximum reverse position, the aircraft continued to maintain significant speed. The pilot then applied the brakes while the aircraft was still traveling at approximately 80 knots. The pilot noted that only the right-side brakes appeared to be functioning, causing the aircraft to skid to the right. Despite attempts to regain directional control using the rudder, the aircraft overran the end of the paved runway at approximately 40 knots. The incident resulted in damage to the wheels and propellers, as well as structural buckling to the fuselage near the left wing leading-edge and the forward right section.
Findings
- The crew experienced a lack of effective deceleration despite applying maximum reverse thrust and braking.
- Asymmetric braking performance contributed to a loss of directional control during the overrun.