Which of the following is NOT a phase of landing?

The correct answer highlights "Centerline control" as not being a recognized phase of landing. In the context of landing procedures, specific phases include the landing transition, flare and touchdown, and the landing roll itself. Each of these phases describes a segment of the landing process, focusing on different aspects of maneuvering the aircraft safely to the ground.

The landing transition refers to the phase where the aircraft adjusts from the approach configuration to a stable descent for landing. The flare and touchdown are critical steps where the pilot raises the nose of the aircraft to reduce descent rate just before touching down, ensuring a smooth landing. The landing roll encompasses the period after touchdown when the aircraft decelerates and comes to a complete stop, which is essential for the safety and control of the aircraft on the runway.

On the other hand, while "centerline control" is crucial for maintaining proper alignment with the runway during landing, it does not constitute a distinct phase of the landing process. It is more of a technique or skill necessary during the landing phases to ensure the aircraft remains centered on the runway while descending and after touchdown. Thus, it is appropriately categorized as important but not an actual phase of the landing itself.