If a vehicle operator sees foreign materials on an aircraft movement surface, what must they do?

When a vehicle operator encounters foreign materials on an aircraft movement surface, the most appropriate action is to stop and remove the material without compromising safety. This approach prioritizes the safety of airport operations and ensures the integrity of the movement surface. Foreign materials can pose significant risks to aircraft operations, including potential damage or safety hazards during takeoff and landing.

By stopping to assess and remove the material, the operator effectively mitigates these risks. This action also demonstrates responsibility and adherence to safety protocols, as it contributes to maintaining clean and safe airport infrastructure. Moreover, if the situation requires assistance or if the removal of the material is beyond the operator's capability without compromising safety, it is crucial to escalate the issue rather than attempting to handle it alone.

In contrast, ignoring the material could result in dangerous consequences for both aircraft and ground operations. Reporting only to a supervisor without taking immediate action also delays addressing the issue, potentially leading to hazardous situations. Driving over the material might not effectively remove it and could cause more damage or create other safety hazards. Therefore, the answer emphasizes not just action, but also a commitment to safety in all operations on the airside area.