WHAT ARE ABARs

WHAT ARE ABARs

WHAT ARE ABARs

Accurate aircraft braking action reports

Recommended by the FAA and Transport Canada

Recommended by the FAA and Transport Canada

Recommended by the FAA and Transport Canada

Better braking data.
Better runway performance

Aircraft Braking Action Reports (ABARs) are the foundational intelligence behind the ABARnet™ Runway Uptime Platform — the leading brake-performance reporting network trusted by major airports and airlines to stay ahead of changing runway conditions.

Every landing generates an ABAR — a real-time, physics-validated report of actual braking performance experienced when the wheels touch down.

This insight enables operators to:

Assess, treat, and optimize runway surfaces before friction degrades

Reduce delays and closures with better treatment timing

Improve landing and turnoff confidence for planes on approach

Help lower the risk of runway excursions for higher aviation safety

ABARs also power the network's Friction Forecasts and Hard-Brake Landing (HBL) reports. Together, these three connected services expose surface-performance issues before they disrupt operations.

Backed by the FAA and compliant with ASTM International standards, ABARs give airports and airlines the clarity to keep runways open, traffic moving, and decisions confident in any condition.

Clear conditions.
Confident operations.
Open runways.

ABARs from AST precisely measure the actual braking action — the exact tire-to-runway friction that determines how well an aircraft stops.

NO estimates.
NO assumptions.
NO subjective metrics or terminology.

Every ABAR uses approved onboard data sources and a validated braking-physics model aligned to aviation industry standards — ensuring that runway condition awareness is accurate, repeatable, and audit-ready.

That’s why ABARs supplement, and often validate, existing reports like RCAMs, FICONs, and NOTAMs, providing a clearer operational picture of what’s truly happening at the surface.

ABARs from AST precisely measure the actual braking action — the exact tire-to-runway friction that determines how well an aircraft stops.

NO estimates.
NO assumptions.
NO subjective metrics or terminology.

Every ABAR uses approved onboard data sources and a validated braking-physics model aligned to aviation industry standards — ensuring that runway condition awareness is accurate, repeatable, and audit-ready.

That’s why ABARs supplement, and often validate, existing reports like RCAMs, FICONs, and NOTAMs, providing a clearer operational picture of what’s truly happening at the surface.

ABARs from AST precisely measure the actual braking action — the exact tire-to-runway friction that determines how well an aircraft stops.

NO estimates.
NO assumptions.
NO subjective metrics or terminology.

Every ABAR uses approved onboard data sources and a validated braking-physics model aligned to aviation industry standards — ensuring that runway condition awareness is accurate, repeatable, and audit-ready.

That’s why ABARs supplement, and often validate, existing reports like RCAMs, FICONs, and NOTAMs, providing a clearer operational picture of what’s truly happening at the surface.

ABARs from AST precisely measure the actual braking action — the exact tire-to-runway friction that determines how well an aircraft stops.

NO estimates.
NO assumptions.
NO subjective metrics or terminology.

Every ABAR uses approved onboard data sources and a validated braking-physics model aligned to aviation industry standards — ensuring that runway condition awareness is accurate, repeatable, and audit-ready.

That’s why ABARs supplement, and often validate, existing reports like RCAMs, FICONs, and NOTAMs, providing a clearer operational picture of what’s truly happening at the surface.

Braking insights for any aircraft + region

Our ABARs are aircraft-agnostic — from Boeing and Airbus to Bombardier and beyond. Deploy across any fleet and region, fully integrated into existing ops and reporting workflows.

Onboarding is fast and flexible, enabling overnight rollout with minimal change to SOPs.

Endorsed by FAA
+ Transport Canada

The FAA and Transport Canada recommend ABAR technology for measuring and reporting on braking action and runway conditions. ABARs supplement RCAMs, FICONs, NOTAMs, and other reports with precise, accurate, and objective data about the actual braking performance of landing aircraft. Using science, not subjectivity, pilots, airlines, and airports can make critical decisions with higher confidence. The regulators' main goal? Stop runway excursions—before they happen.

For airports:
No more using "eye tests" to determine runway conditions, available braking friction, or when to schedule maintenance. Science-based ABARs enable smarter decisions around airside operations to help keep flight plans on track, optimize runway usage, and reduce the costs associated with plowing and chemical treatments.

For airlines and pilots:
No more landing approaches based on subjective PIREPs from recent landings. No more guessing the conditions of runways you’re about to land on. With data-driven insights from ABARs, pilots know their available braking deceleration with certainty.

"ABARs give airports braking conditions they can count on — so traffic keeps moving even when the weather changes. We feel that momentum in the cockpit."

John Gadzinski

Commercial Airline Captain, B737

"ABARs give airports braking conditions they can count on — so traffic keeps moving even when the weather changes. We feel that momentum in the cockpit."

John Gadzinski

Commercial Airline Captain, B737

"ABARs give airports braking conditions they can count on — so traffic keeps moving even when the weather changes. We feel that momentum in the cockpit."

John Gadzinski

Commercial Airline Captain, B737

ASTM E3266

Compliant with the global standard for braking action reporting

ABARnet™ fully complies with ASTM International E3266 — the Standard Guide for Friction-Limited Aircraft Braking Measurements and Reporting. This standard was created to replace subjective runway condition reporting with science-based braking measurement.

The goal? Runway friction reports that are accurate, science-based, and trustworthy across all modern aircraft and operating conditions.

Why compliance matters

Replaces subjective perception with objective braking measurement

Improves operational confidence in fast-changing surface conditions

Accelerates global adoption of ABARs as the preferred methodology for managing runway and safety risk

How E3266 ensures accuracy

Defines how to scientifically measure and consistently report braking performance using aircraft sensor data

Sets requirements for data quality and validated physics-based modeling

Requires isolating wheel-braking forces from other deceleration sources (drag, reversers, slope)

What E3266 covers

Systems that measure braking forces and runway friction

Automated systems that use onboard aircraft sensor data to create an ABAR

Created by aviation engineers

Developed by SAPOE engineers from major U.S. carriers, the FAA, Boeing, and Airbus

Published Nov 2020, reaffirmed at the SAPOE Conference (Oct 2021)

ABARnet™

Improve runway maintenance and uptime

ABARs: Use approved data directly from aircraft

Friction forecasts: A crystal ball into the future

Hard-brake landings: Identify runway hotspots

Available for any aircraft type - Boeing, Airbus. etc.

Achieves a level of accuracy that others do not

let's CONNECT

Get on board with precise reports

ABARnet™

Improve runway maintenance and uptime

ABARs: Use approved data directly from aircraft

Friction forecasts: A crystal ball into the future

Hard-brake landings: Identify runway hotspots

Available for any aircraft type - Boeing, Airbus. etc.

Achieves a level of accuracy that others do not

let's CONNECT

Get on board with precise reports

ABARnet™

Improve runway maintenance and uptime

ABARs: Use approved data directly from aircraft

Friction forecasts: A crystal ball into the future

Hard-brake landings: Identify runway hotspots

Available for any aircraft type - Boeing, Airbus. etc.

Achieves a level of accuracy that others do not

let's CONNECT

Get on board with precise reports