Rejected Takeoff (RTO)
The RTO mode can be selected only when on the ground. Upon selection, the AUTO
BRAKE DISARM light illuminates for one to two seconds and then extinguishes, indicating
that an automatic self–test has been successfully accomplished.
To arm the RTO mode prior to takeoff the following conditions must exist:
- Airplane on the ground
- Antiskid and autobrake systems operational
- AUTO BRAKE select switch positioned to RTO
- Wheel speed less than 60 knots
- Forward thrust levers positioned to IDLE.
With RTO selected, if the takeoff is rejected prior to wheel speed reaching 90 knots
autobraking is not initiated, the AUTO BRAKE DISARM light does not illuminate and the
RTO autobrake function remains armed. If the takeoff is rejected after reaching a wheel
speed of 90 knots, maximum braking is applied automatically when the forward thrust levers
are retarded to IDLE.
The RTO mode is automatically disarmed when both air/ground systems indicate the air
mode. The AUTO BRAKE DISARM light does not illuminate and the AUTO BRAKE select
switch remains in the RTO position. To reset or manually disarm the autobrake system,
position the selector to OFF. If a landing is made with RTO selected (AUTO BRAKE select
switch not cycled through OFF), no automatic braking action occurs and the AUTO BRAKE
DISARM light illuminates two seconds after touchdown.
