What is a critical phase of flight?

A critical phase of flight refers to any segment of the flight operation that requires heightened attention and focus from the pilots. This encompasses various stages of flight where significant safety considerations arise, necessitating full cognitive and operational engagement to manage the aircraft effectively.

While certain phases like takeoff and landing are traditionally recognized as critical due to their inherent risks and operational demands, other stages, such as flight below 10,000 feet, can also involve critical decision-making, especially in varying conditions or during transitions.

Essentially, the answer highlights the importance of remaining vigilant throughout all phases of flight, not just during the most obvious high-risk moments but whenever the potential for challenges arises, thereby emphasizing the need for continuous situational awareness and preparedness.