What happened
During the final approach phase toward the runway 28 threshold at Toronto-Lester Bowles Pearson Airport, an aircraft was positioned at an altitude of 700 feet and approximately 3,200 meters from the runway. During this period, one of the engines experienced a loss of power. In an attempt to manage the situation, the captain initiated a shutdown procedure but inadvertently deactivated engine number one instead of the malfunctioning unit.
Following the unsuccessful attempt to restart the mistakenly shut-down engine, the crew applied increased power to the remaining operational engines, specifically engines three and four. This action resulted in asymmetric thrust, which caused the aircraft to bank to the left. The flight subsequently entered a stall and impacted the ground before reaching the runway threshold. Although the aircraft sustained damage beyond repair, there were no fatalities among the 44 occupants, all of whom were evacuated from the wreckage safely.
Findings
Investigations into the incident revealed that the initial loss of power in engine number two was triggered by the ingestion of a foreign object, though the specific origin of this object remained unidentified. Furthermore, the investigation concluded that the crew's response to the emergency was compromised by a lack of coordination during the engine shutdown process.