On 1 June 2009, inconsistent airspeed indications led to the pilots inadvertently stalling the Airbus A330 serving the flight. They failed to recover the plane from the stall, and the plane ended up crashing into the Atlantic Ocean at 02:14 UTC, killing all 228 passengers and crew on board.

The tragic crash of Air France Flight 447 in 2009 was ultimately attributed to a complex combination of technical failures and human response, rather than a singular "pilot error." The investigation by the BEA concluded that the incident began when pitot tubes (speed sensors) became obstructed by ice crystals, causing the autopilot to disconnect and provide inconsistent airspeed readings. While the equipment failure was the catalyst, the flight crew's subsequent actions were central to the outcome. Specifically, the junior pilot pulled back on the side-stick, putting the aircraft into a steep climb that resulted in an aerodynamic stall. Because the crew failed to recognize the stall and ignored the repeated stall warnings—instead maintaining the nose-up input—the aircraft plunged into the Atlantic. In 2026, this case remains a cornerstone of aviation safety studies regarding "automation dependency" and "startle response." While the pilots' lack of proper stall recovery was the direct cause of the impact, the confusing cockpit ergonomics and the initial sensor failure mean the tragedy is viewed as a systemic failure where the crew was poorly prepared to handle a high-altitude manual flight crisis.