What should happen when an aircraft transitions into approach airspace?

When an aircraft transitions into approach airspace, initiating a point out is essential as it allows the air traffic controller to inform the relevant approach control facility that the aircraft is entering their airspace. This communication is crucial for ensuring safe and efficient handling of the aircraft as it approaches the destination airport. The point out provides the approach controller with the necessary information regarding the aircraft's current position, intentions, and any pertinent details, facilitating seamless coordination and minimizing the risk of conflicts with other traffic.

In contrast, creating a visual approach may be possible later in the procedure but does not directly pertain to the immediate actions required on entering approach airspace. Requesting altitude adjustments is a possibility, but it typically depends on the current altitude of the aircraft and the airspace structure, rather than an automatic response to entering approach airspace. Changing the flight plan accordingly might be relevant in specific scenarios but is not a standard procedure when entering approach airspace. Therefore, the most appropriate action upon entering approach airspace is to initiate a point out to ensure proper communication and coordination with the approaching facility.