Runway overruns are one of aviation’s most stubborn problems: not dramatic, not rare, and almost always the result of a landing that was marginal before the wheels ever touched down. Embraer thinks software can see it coming — and Europe’s regulator now agrees.
The European Union Aviation Safety Agency has certified Embraer’s Runway Overrun Awareness and Alerting System (ROAAS) for the E-Jet E2 family, the Brazilian planemaker announced Friday. The approval follows a green light from Brazil’s ANAC and clears ROAAS for E2 operators across Europe and every other jurisdiction that recognizes EASA sign-off.
What ROAAS actually does
ROAAS is an energy-based system, which is a slightly academic way of saying it does continuous math on whether the aircraft can physically stop in the space that’s left. It runs Embraer-developed algorithms against the jet’s real-time state — speed, configuration, energy, remaining runway — during the approach and again after touchdown. If the numbers stop working, the flight crew gets an alert while there’s still time to do something about it, like go around.
That timing is the whole point. Crews already get runway performance data, but it’s calculated before departure against assumptions — assumptions that a wet runway, a tailwind shift, or a long float past the touchdown zone quietly invalidate. ROAAS is a live recalculation rather than a preflight estimate.
Embraer lists the benefits as improved crew awareness of landing performance margins, reduced overrun risk, real-time predictive alerting, and better operational safety — a list that reads exactly like a list a manufacturer writes, but the underlying capability is real enough that EASA has been pushing the industry toward it.
A mandate, met on schedule
Buried in Embraer’s own framing is the more interesting detail. “Safety is Embraer’s highest priority, and the certification of ROAAS by EASA represents an important achievement for our E2 program in compliance with European aviation authority mandate and on time,” said Luís Carlos Affonso, Embraer’s Chief Technology Officer.
In compliance with mandate. This isn’t purely a voluntary safety flourish — it’s Embraer clearing a regulatory bar that European authorities set, and saying so out loud because hitting an aviation certification deadline on schedule is itself worth a press release. Anyone who has watched aerospace programs slip by years will understand the flex.
Why it matters
The E2 family is Embraer’s bet on the small end of the single-aisle market, where it competes against aging regional jets and the bottom of the Airbus and Boeing ranges. Safety systems are one of the few places a smaller manufacturer can differentiate without matching a rival’s balance sheet, and Embraer has leaned into that — the company says its E2s are now among the most advanced single-aisle aircraft flying, which is the kind of claim certifications like this exist to underwrite.
Worth keeping in perspective: ROAAS is an alerting system, not an intervention. It tells pilots the margin is gone; it doesn’t take the airplane. Automated braking intervention remains a further step the industry has debated for years. And certification is not deployment — the practical question is how quickly European E2 operators actually get the system onto their fleets, and Embraer hasn’t put a timeline on that.
Still, in a segment where safety improvements usually arrive as thicker manuals and more training, shipping a predictive algorithm that watches the runway in real time is a meaningfully better answer.
