What happened
A cargo flight departed from Luanda, bound for Menongue, transporting fuel drums and a crew of four. During the initial flight, the aircraft type experienced an engine failure while at cruising altitude. Despite this mechanical issue, the crew successfully completed the flight and landed at Menongue Airport.
Following the landing, the crew elected to perform a return flight to Luanda using only three engines. This decision was made to avoid waiting for a maintenance team to arrive at the airfield the following day. During the subsequent departure from Menongue, a second engine failed while the aircraft was in the climbing phase. This loss of power led to an aerodynamic stall, resulting in the crash. All four fatalities occurred among the crew members on board.
Findings
The accident was precipitated by the decision to operate the aircraft with reduced engine power during a critical phase of flight.