If a command states "Alter heading," what action should be taken?

When a command states "Alter heading," it specifically instructs a pilot to change the direction in which the aircraft is pointed. This involves turning the aircraft to follow a new, indicated direction. The phrase "alter heading" is a clear directive within aviation communication that focuses solely on adjusting the aircraft's course rather than making changes to altitude, speed, or communications.

Following the commanded heading is crucial for ensuring proper navigation and alignment with air traffic control instructions or flight plans. Thus, recognizing the intention behind the command is key to maintaining safety and proper aircraft operation in accordance with established protocols.