If you are the brake rider and the tow bar separates from the tractor or the jet, what should you do first?

Applying brakes with firm and consistent pressure is the correct action to take when the tow bar separates from the tractor or the aircraft. This immediate response helps to prevent any potential uncontrolled movement of the aircraft, ensuring the safety of personnel and the aircraft itself.

When a tow bar separates, it can lead to the aircraft starting to roll or move unpredictably. By firmly applying the brakes, the brake rider is able to halt any forward or backward motion, maintaining control until further actions can be assessed or taken. This is crucial in these scenarios, as any uncontrolled movement could cause significant safety hazards, including collisions or damage to the aircraft or surrounding equipment.

Other actions, such as calling for assistance, releasing the tow bar, or notifying ground control, are important but would typically follow the immediate step of ensuring the aircraft is secured by braking. Prioritizing brake application is a critical safety measure that should be the first course of action in this situation.