Which maneuver considerably increases the likelihood of an accident during operations?

The choice of maneuvers that considerably increases the likelihood of an accident during operations is tower flybys. This maneuver involves flying close to the control tower, typically to check for clearance or to acknowledge instructions. While it may seem straightforward, it can pose significant risks.

The proximity to the tower and other aircraft can lead to loss of separation, particularly in busy airspace. There can also be distractions from the tower personnel who may not be expecting an aircraft to execute such a maneuver at that time. Additionally, if there are any unexpected changes, such as a sudden requirement to climb or change heading, the pilot may find themselves in a precarious situation.

Comparatively, crosswind landings, go-arounds, and touch-and-gos, while they do present their own challenges, are generally well-understood and routinely practiced maneuvers. They are part of normal operational procedures, and pilots are typically trained to handle these situations effectively, which helps mitigate risks associated with them. In contrast, tower flybys can introduce unnecessary complexities and potential hazards that might not be present in the other maneuvers.