What Happens When a Plane’s Autobrake System Fails

Longer Landing Roll

The aircraft may roll farther down the runway before slowing significantly.

Firm Manual Braking 

Pilots apply brakes manually, which can feel slightly firmer than normal automatic braking. 

Increased Brake Heat 

Manual braking can generate higher brake temperatures, triggering “HOT BRAKES” alerts. 

Extra Reverse Thrust 

Pilots may rely more on reverse thrust to help slow the aircraft. 

Possible Delay at Gate 

After landing, engineers may inspect the brake system before the next flight. 

Runway Safety Margins 

Aircraft are certified with enough runway margin to stop safely even without autobrakes. 

Passenger Experience 

Most passengers won’t notice anything unusual — just a slightly longer rollout. 

Not a Brake Failure 

Autobrake failure does NOT mean brake failure. The main braking system remains fully operational.