What disengages the rudder pedal steering?

• A. The activation of the nosewheel steering
• B. The pressing of the rudder pedals
• C. Loss of hydraulic pressure in all systems
• D. Steering wheel lock engagement

Answer: (A)

Disengaging the rudder pedal steering happens because, on the ground, there are two steering paths and they must not fight each other. When nosewheel steering is activated, the system automatically decouples the rudder pedal input from the rudder linkage. That means your rudder pedals no longer move the rudder while the nosewheel steering is in control for taxiing. This prevents conflicting commands and gives predictable steering through the nosewheel. The other options don’t cause this automatic disconnection: moving the rudder pedals deflects the rudder, loss of hydraulic pressure might degrade control but doesn’t disconnect the pedal linkage, and a steering wheel lock would not disengage pedal steering.