American Airlines is to equip its entire Airbus A320-family fleet with a system designed to protect the aircraft from runway overrun.
Certification of the Airbus-developed technology, known as the Runway Overrun Prevention System, is set to be granted to the A320 later this year.
American has 130 A321neo jets on order, part of an original deal intended to cover 260 A320-family aircraft.
"Our pilots appreciate the operational benefits that this industry-approved cockpit technology will bring to their daily work," says American vice-president for flight Capt John Hale.
American suffered a high-profile Boeing 737-800 overrun at Kingston, Jamaica, in late 2009 and another, involving a 757-200 at Jackson Hole a year later. Investigators determined that both could have been prevented.
The protection system uses aircraft weight and configuration, as well as meteorological conditions, to calculate the minimum distances required for landing and stopping on the runway.
It then compares these figures to the runway length and other data, particularly the surface condition, in order to provide braking guidance or warn the pilots to abort the approach.
Airbus says there are multiple reasons for overruns, including unstable approaches, long flares, and late selection - or early cancellation - of reverse thrust.
The system effectively combines an overrun warning phase, active until touchdown, with an overrun protection phase which alerts to the need for full braking and maximum reverse.
Airbus chief product safety officer Yannick Malinge says the American decision "underscores the value and significant contribution" that the system offers.
It has been in development for around 15 years since being conceived in an academic thesis. The system is already approved for the Airbus A380 - and selected for around 70% of the ordered fleet - and will be a standard feature on the new A350 when it goes into service in the second half of 2014.
Airbus is also aiming to make the system commercially available on aircraft manufactured by other airframers, coupled to terrain-avoidance avionics.