What are human-machine interaction factors in aviation mishaps?

• A. They refer to mechanical failures only.
• B. They are not considered in investigations.
• C. The interface and interaction between pilots and aircraft systems, including automation, can influence performance and errors.
• D. They involve only maintenance personnel.

Answer: (C)

Human-machine interaction in aviation mishaps focuses on how pilots interact with cockpit systems and automation, and how that interaction can influence performance and errors. Investigators look at how interface design, automation modes, displays, alarms, and control logic shape a pilot’s perception, workload, decision making, and actions. When automation handles tasks or presents information in a certain way, pilots may misread the status, become overreliant, or experience mode confusion, leading to timing errors or incorrect control commands. This explains why the interface between people and machines is a critical factor in many mishaps. The other options narrow the issue to mechanical faults, deny consideration in investigations, or limit it to maintenance personnel, which misses the essential role of human interaction with aircraft systems.