What is the requirement for ARFF unit standby during unscheduled operations?

• A. Must be fully staffed
• B. Must have fuel supplies on hand
• C. Must be prepared for mechanical emergencies or diversions
• D. Must be stationed outside the terminal area

Answer: (C)

The requirement for ARFF (Aircraft Rescue and Fire Fighting) units during unscheduled operations emphasizes their preparedness for mechanical emergencies or diversions. When an aircraft operates outside of its normal schedule, there may be increased risks associated with unexpected events such as mechanical failures, emergency landings, or diversions due to weather conditions or other operational factors.

By focusing on being ready for these incidents, the ARFF unit can ensure a rapid and effective response, which is crucial for maintaining safety at the airport. Preparedness includes having the necessary equipment and personnel available to address fires, injuries, or other emergencies that could arise during these unplanned situations.

The other options, while important aspects of airport operations, are not specifically laid out as requirements for ARFF standby during unscheduled operations. For instance, being fully staffed or stationed outside the terminal area pertains to general operational readiness but does not directly correspond to the unique demands of unexpected operational changes. Similarly, while having fuel supplies is vital for ARFF vehicles, it is not the primary focus during unscheduled operations, where the urgency lies in responding to potential emergencies.