What should you not do before properly chocking the aircraft?

Before properly chocking the aircraft, it is essential to ensure that the aircraft is stable and secure on the ground to prevent any unintended movement that could lead to accidents or injuries. Chocking involves placing blocks or wedges against the wheels of the aircraft to keep it stationary.

Parking equipment or vehicles near the aircraft is typically not a procedure performed before chocking. This action can pose a safety risk, as any nearby equipment can become a hazard if the aircraft were to move unexpectedly. It is important to first prioritize securing the aircraft by chocking it before handling any other tasks, such as parking equipment. Ensuring that the aircraft is correctly chocked is fundamental to maintaining a safe working environment, and it is a clear priority enhanced by standard operating procedures.

The other options involve tasks that are generally safe to perform after the aircraft has been properly secured. Checking fuel levels, engaging ground power, or beginning to unload passengers can all take place once the aircraft is stabilized.