On 8 November 2017, an Avro RJ85 in the cruise after just crossing into South African airspace from Zimbabwe suddenly experienced the apparently simultaneous failure of both left hand engines. After reviewing their situation, it was decided to continue to Johannesburg and this was achieved without further event. The Investigation found that the initiating failure was that of the number 2 (inner) engine which failed mechanically as a consequence of maintenance error but that this failure was uncontained and turbine debris from the number 2 hit the number 1 engine FADEC box and caused that engine to shut down too.