What type of approach and landing accident cause is the FAA aiming to reduce with angle of attack-based systems?

The FAA is focused on reducing loss-of-control (LOC) incidents during approach and landing phases of flight, particularly through the implementation of angle of attack-based systems. These systems provide pilots with real-time feedback about the aircraft's angle of attack, which is crucial for understanding the relationship between airspeed and stall risk.

By having accurate information on the angle of attack, pilots can maintain the necessary margins against stalling, especially during critical phases such as approach and landing when the aircraft is operating at lower airspeeds and configurations that are more susceptible to loss of control. This proactive measure helps to prevent situations where pilots might inadvertently allow the aircraft to exceed its critical angle of attack, leading to a stall and potentially resulting in loss of control.

In contrast, while other factors like controlled flight into terrain (CFIT), wake turbulence encounters, and ground contact during landing are significant safety concerns, they are typically influenced by different variables that angle of attack systems do not directly address in the same manner. Thus, the emphasis on improving LOC prevention aligns with the capabilities of angle of attack-based technologies.