When is it safe to drive behind an aircraft that has just arrived at the gate?

Driving behind an aircraft that has just arrived at the gate is safe only when the engines have stopped and the beacon lights are off. This indicates that the aircraft is no longer in operational mode, which is crucial for ensuring the safety of ground vehicles. The engines running or the aircraft doors being closed do not necessarily guarantee safety since the aircraft may still pose risks with active systems or potential cargo or personnel movements. Therefore, waiting for the engines to completely shut down and the beacon lights to turn off is essential for minimizing risks associated with jet blast and unexpected aircraft movement. This protocol underscores the importance of maintaining a safe distance from aircraft until they are fully secured and prepared for ground operations.