On 31st May 2023 at 14:55h, an Embraer ERJ 145 with nationality and registration marks 5N-BWW, operated by United Nigeria Airlines Company Limited as a charter flight NUA0563 departed Ebonyi International Airport (DNEB), Ebonyi for Murtala Muhammed International Airport (DNMM), Lagos. The incident flight was the sixth sector of the day. On board the aircraft were 50 persons inclusive of 2 flight crew and 2 cabin crew with fuel endurance of 2 hours 29 minutes. The Pilot was the Pilot Flying (PF) while the Co- pilot was the Pilot Monitoring (PM).
At about 15:00h, 5N-BWW was airborne Ebonyi airport en route DNMM, Lagos.
At 16:01:16 h, NUA0563 contacted Lagos Approach and reported 6 miles to runway 18L. Tower cleared the aircraft to continue approach and to confirm call sign, which was confirmed by the crew. NUA0563 was further cleared to continue approach and advised of traffic on runway 18L; an ATR-76 on take-off roll.