Which indicator shows the air/ground thrust reverser logic has failed?

Which indicator shows the air/ground thrust reverser logic has failed?

• A. Reverser Air/GRD Light
• B. Start Valve Open
• C. Reverser Command
• D. N2 RPM

Answer: (A)

The main idea is that a dedicated indicator exists to flag faults in the reverser’s air/ground logic. The Reverser Air/GRD Light lights up when the air/ground logic detects a fault or unsafe condition affecting reverser deployment or retraction, signaling that the system’s reverser logic isn’t reliable and needs attention. That’s why it’s the best indicator of a reverser logic failure. The start valve open status only shows the valve state, not a fault in the reverser logic. The reverser command is simply the control signal to deploy the reverser, and while a fault could affect behavior, the explicit fault indication for the reverser logic is the air/ground light. N2 RPM measures engine speed and has no direct relation to reverser logic health.

The main idea is that a dedicated indicator exists to flag faults in the reverser’s air/ground logic. The Reverser Air/GRD Light lights up when the air/ground logic detects a fault or unsafe condition affecting reverser deployment or retraction, signaling that the system’s reverser logic isn’t reliable and needs attention. That’s why it’s the best indicator of a reverser logic failure. The start valve open status only shows the valve state, not a fault in the reverser logic. The reverser command is simply the control signal to deploy the reverser, and while a fault could affect behavior, the explicit fault indication for the reverser logic is the air/ground light. N2 RPM measures engine speed and has no direct relation to reverser logic health.