The REVERSER COMMAND illuminates when?

The REVERSER COMMAND illuminates when?

• A. The reverse thrust lever is locked in the down position.
• B. The engine is at flight idle.
• C. The start valve is closed.
• D. The reverse thrust lever is not in the down position in flight.

Answer: (D)

The indicator for reverser command is part of the reverser control system that watches the commanded state versus the actual lever position. It lights up when there is a mismatch between what the system is being commanded to do and where the reverser lever actually is. In flight, you don’t want reversers deployed, so if the system detects a reverser command while the lever is not in the down (reverse) position, it flags that condition. That alert helps crews catch a possible fault or improper configuration before landing. So, the light comes on specifically when the reverse thrust lever is not in the down position in flight, signaling a discrepancy between the commanded state and the lever’s position. The other options don’t describe this command-into-position monitoring and aren’t directly related to how the reverser command light functions.

The indicator for reverser command is part of the reverser control system that watches the commanded state versus the actual lever position. It lights up when there is a mismatch between what the system is being commanded to do and where the reverser lever actually is. In flight, you don’t want reversers deployed, so if the system detects a reverser command while the lever is not in the down (reverse) position, it flags that condition. That alert helps crews catch a possible fault or improper configuration before landing.

So, the light comes on specifically when the reverse thrust lever is not in the down position in flight, signaling a discrepancy between the commanded state and the lever’s position. The other options don’t describe this command-into-position monitoring and aren’t directly related to how the reverser command light functions.