AUTOBRAKES SYSTEM AND WORKS

Autobrakes are available with normal braking (green system) only. 

LO and Med can be used for landing and MAX is for take-off only. To arm the autobrakes, depress the switch for at least 1 second. During take-off the autobrakes will not activate below 72 knots (ground spoiler extension). During landing, with LO selected the autobrakes will activate 4 seconds after touchdown and in MED, 2 seconds after touch down. A green DECEL light in the autobrakes pb comes on to indicate that the actual deceleration is within 80% of the selected rate. (it does not indicate that the autobrake is activated) 

• The autobrakes can be armed with the parking brake on. 

The autobrake will be disarmed under the following conditions: 

• De-selection of the AUTO/BRK switch 

• Ground spoiler retraction 

• 10 seconds after landing gear retraction 

• By applying sufficient brake pedal force during auto brake operation: 

• In Max mode, when both pedals are depressed .

• In LO/MED mode, when one pedal is depressed