When should a vehicle operator turn off the beacon on an apron?

Turning off the beacon when a vehicle is stationary within an operational stand is crucial for maintaining safety and communication among other operators. The apron is a busy area where aircraft and vehicles are constantly in motion, and the use of beacons signals the presence of a vehicle to other personnel and operators.

When a vehicle is parked or stationary at an operational stand, the beacon is no longer necessary because the vehicle is not contributing to the ongoing operational traffic and does not require the same level of visibility. Turning off the beacon in this scenario helps reduce visual clutter, which can minimize confusion among other operators and enhance overall safety.

In contrast, the other scenarios provided, such as approaching a runway, leaving the apron, or passing another vehicle, each have their own specific conditions regarding beacon use that warrant keeping it on for visibility and safety.