Factual Information
On 14 March 2021 at 14:42 h, a Dornier 328-100 aircraft with registration 5N-BUN, operated by Dornier Aviation Nigeria AIEP (DANA) Limited, departed Port Harcourt Military Airport (DNPM) for Murtala Muhammed Airport, Lagos (DNMM) as scheduled passenger flight DAV487 under an Instrument Flight Rules (IFR) flight plan. The flight was the third sector for the crew that day. On board were 20 persons, including two flight crew, one cabin crew, and one aircraft maintenance engineer. Fuel endurance at departure was 3 hours 30 minutes. The Co-pilot was the Pilot Flying (PF) and the Captain was the Pilot Monitoring (PM).
Take-off, climb, cruise, descent, and approach were normal. At 15:41 h, ATC cleared DAV487 to land on runway 18L with wind 230°/06 kt and a caution about bird activity. At 15:42 h, the aircraft touched down on the right side of the runway centre line and subsequently veered off the runway into the right grass verge. The aircraft was not damaged. All occupants disembarked normally without injury.
Analysis
The investigation determined that the serious incident resulted from inappropriate control handover during the landing roll above recommended taxi speed. Additionally, inadequate compliance with checklist guidelines for directional control after landing was identified as a contributory factor.
Conclusions
Causal factor: Inappropriate control handover during landing roll above recommended taxi speed.
Contributory factor: Inadequate compliance with the checklist guidelines for directional control after landing.
Two safety recommendations were made by the Nigerian Safety Investigation Bureau.