What is involved in performing a Class 1A FRA air brake test?

In a Class 1A FRA air brake test, the procedure includes having the conductor perform a walk-around inspection while releasing the brakes. This step is essential to ensure that the train's air brake system is functioning properly and that there are no leaks or issues that would impair braking performance. The conductor's walk-around allows for a visual inspection of the brake system and related components, ensuring safety and compliance with regulations.

The test requires active participation from the crew, particularly the conductor, to verify that all systems are operational. This hands-on approach provides a thorough check of the equipment and contributes to maintaining the safety and reliability of train operations. Therefore, the involvement of the conductor walking around during the process is a critical aspect of conducting the Class 1A air brake test effectively.