The third step in the flight profile involves which of the following actions?

The third step in the flight profile is crucial for ensuring that the aircraft is ready for safe operation. Checking the airplane's engine and flight controls is essential because it directly impacts the safety and performance of the flight. Before a flight, pilots must conduct thorough pre-flight checks to verify that all systems are functioning correctly. This includes inspecting the engines, control surfaces, and various flight instruments to confirm they are in good working condition.

This action ensures that pilots are aware of any potential mechanical issues before takeoff, which could prevent accidents or malfunctions during the flight. Regular checks are part of standard operating procedures that contribute to maintaining a high safety standard in aviation operations. Properly verifying these components helps pilots make informed decisions and enhances the overall safety of the flight.