What should always be checked during the operational inspection of an aerial apparatus?

During the operational inspection of an aerial apparatus, ensuring the functionality of the brake system and the electrical systems is critical for safety and performance. The brake system is vital for controlling the vehicle’s speed and ensuring that it can stop effectively. Any malfunction in the brakes could lead to catastrophic outcomes during emergency operations.

The electrical systems are also essential, as they power various components of the aerial apparatus, including lights, alarms, and hydraulic systems that are necessary for the operation of the aerial device itself. A failure in these systems could hinder the apparatus's ability to perform its firefighting duties, exposing both the crew and the public to unnecessary risks.

By focusing on these two aspects during inspections, personnel can help ensure that the aerial apparatus is safe to operate and capable of performing as expected in emergencies.