On 11th June, 2015, at about 18:25 h, an HS-125-800XP aircraft with nationality and registration marks N497AG, operated by SWAT Technology Limited departed Nnamdi Azikiwe International Airport, Abuja (DNAA) for Port Harcourt International Airport (DNPO) as a charter flight on an Instrument Flight Rule (IFR) flight plan. There were five persons on board inclusive of three flight crew and two passengers. The Captain was the Pilot Flying while the Co-pilot was the Pilot Monitoring.
At 18:48 h, N497AG established contact with Lagos and Port Harcourt Air Traffic Control (ATC) units cruising at Flight Level (FL) 280.
At 18:55 h, the aircraft was released by Lagos to continue with Port Harcourt.
Port Harcourt cleared N497AG for descent to FL210.