The Nigerian Safety Investigation Bureau (NSIB) said it has commenced an investigation into an occurrence involving a Challenger 604 aircraft, registration T7-SEI, operated by Triton aviation.
The aircraft, the Bureau said departed Abuja for Lagos on Thursday at 1612 UTC.
“At 3 nautical miles, passing 3,500 feet, the crew declared a mayday after the aircraft’s door separated.”, it said.
The aircraft, it was learnt, returned to Abuja and landed safely on Runway 22 at 1634 UTC, with nine persons on board, comprising three crew members and six passengers.
A statement by Captain Alex, NSIB Director General said the door has been recovered and secured at the NSIB wreckage hangar. The Bureau has commenced its investigation to establish the circumstances surrounding the occurrence.
The statement added that the NSIB will provide further updates as the investigation progresses.
