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American Airlines 1420

Printed page 129. PDF page 143.

thrust greater than 1.3 engine pressure ratio (EPR), and the use of manual rather than automatic brakes and evaluated the role that each played in the flight crew's inability to maintain directional control of the airplane on the runway and
Open official document at PDF page 143Runway Overrun During Landing: American Airlines Flight 1420, McDonnell Douglas MD-82, N215AA, Little Rock, Arkansas, June 1, 1999

American Airlines 1420

Printed page 138. PDF page 152.

his inability to maintain full braking while applying full right rudder. The use of automatic brakes is also important for airplanes landing on wet or slippery runways. Brakes decrease stopping distance most effectively when they are applied at a high
Open official document at PDF page 152Runway Overrun During Landing: American Airlines Flight 1420, McDonnell Douglas MD-82, N215AA, Little Rock, Arkansas, June 1, 1999

American Airlines 1420

Printed page 139. PDF page 153.

Analysis 139 Aircraft Accident Report quickly than automatic brakes.206 However, during high workload landing situations that may require active or aggressive use of the rudder pedals, the use of automatic brakes provides pilots with a
Open official document at PDF page 153Runway Overrun During Landing: American Airlines Flight 1420, McDonnell Douglas MD-82, N215AA, Little Rock, Arkansas, June 1, 1999

American Airlines 1420

Printed page 171. PDF page 185.

For all 14 Code of Federal Regulations Part 121 and 135 operators, require the use of automatic brakes, if available and operative, for landings during wet, slippery, or high crosswind conditions, and verify that these operators include this procedure in
Open official document at PDF page 185Runway Overrun During Landing: American Airlines Flight 1420, McDonnell Douglas MD-82, N215AA, Little Rock, Arkansas, June 1, 1999

American Airlines 1420

Printed page 21. PDF page 35.

System Information The MD-80 series airplane braking system can be operated manually or automatically. The automatic braking (autobrake) system on the MD-80 is optional; the accident airplane was equipped with the system. According to Boeing's Engineering Manager for Landi
Open official document at PDF page 35Runway Overrun During Landing: American Airlines Flight 1420, McDonnell Douglas MD-82, N215AA, Little Rock, Arkansas, June 1, 1999

American Airlines 1420

Printed page 22. PDF page 36.

an antiskid braking system. This system adapts braking pressure (applied manually or automatically) to runway conditions by sensing an impending skid condition and adjusting the brake pressure on each individual wheel to allow for maximum braking performance. The inboar
Open official document at PDF page 36Runway Overrun During Landing: American Airlines Flight 1420, McDonnell Douglas MD-82, N215AA, Little Rock, Arkansas, June 1, 1999