Accident
On 11 July 1991, Nigeria Airways Flight 2120, a chartered passenger flight from Jeddah, Saudi Arabia, to Sokoto, Nigeria, caught fire shortly after takeoff from King Abdulaziz International Airport. The aircraft crashed while attempting to return for an emergency landing. All 247 passengers and 14 crew members on board died in the accident.
Investigation
The investigation traced the fire to underinflated tires, which overheated and burst during takeoff. Investigators further discovered that a project manager had prevented those tires from being replaced because the aircraft was behind schedule.
Aircraft and Operator
The aircraft was a Douglas DC-8 operated by Nationair Canada on behalf of Nigeria Airways. The accident remains the deadliest involving a DC-8 and the deadliest aviation disaster involving a Canadian airline.