What action is recommended for the conductor during a Class 1A FRA air brake test?

During a Class 1A FRA air brake test, the recommended action for the conductor is to walk around the outside of the train. This is crucial because it allows the conductor to visually inspect the air brake components and ensure that they are functioning correctly. Observing the brake rigging and other mechanical elements helps confirm that there are no leaks or malfunctions that could compromise the train's braking system.

This inspection process is essential for maintaining safety standards. The conductor's walk-around is designed to verify that all equipment meets regulatory requirements and is operational before the train departs. It's a proactive measure to ensure the safety of the train, crew, and passengers.

While monitoring passenger conduct, operating the control panel, or assisting the engineer are all important tasks, they do not directly pertain to the responsibilities outlined during the air brake test. The focus during this specific procedure is on ensuring the integrity of the air brake system through thorough inspection.