B777
Taxi Brake Release
During each taxi brake application, the antiskid system releases the brakes of one axle pair of each main landing gear (if wheel speeds are less than 45 knots). The system sequences through the axle pairs at each brake application, thereby reducing the number of brake applications by each brake. This extends service life and reduces brake sensitivity during taxi.
All active brakes are applied for a heavy brake application, landing rollout, RTO, or when setting the parking brake.
The taxi brake release system operates only with the normal brake hydraulic system.