Coulson Aviation has developed SafeFuel, the aviation industry’s first onboard system designed to verify fuel quality and detect contamination during refueling.

The innovation comes amid growing safety concerns following multiple fuel-related incidents in both military and commercial aviation, and recent Navy aircraft accidents that are under investigation.

Coulson Aviation’s aircraft often operate in remote environments around the world, where the risk of contaminated or off-spec fuel is heightened. Over years of global operations, the company has encountered issues ranging from water-laden Jet A and microbial growth to cross-contamination, while the industry as a whole has seen increased fuel related issues, including contamination from DEF (Diesel Exhaust Fluid) and SAP (Super Absorbent Polymer) from aging filter separators. One such incident resulted in one of Coulson’s jets having an engine flameout during an overwater ferry flight, a potential near-disaster that underscored the absence of onboard fuel protection technology across aviation.

Developed and patented by Coulson’s in-house team, SafeFuel integrates directly into an aircraft’s single-point refueling manifold and continuously analyzes fuel during the refueling process. The system verifies key parameters in real time and automatically notifies the flight crew and can halt fueling if contamination or out-of-spec readings are detected before fuel reaches the tanks. Each fueling event is digitally recorded, providing traceability and a verifiable chain of custody for operators, OEMs, and regulators.

“We’ve spent decades designing aircraft to survive any emergency, but none of that matters if the fuel itself isn’t safe,” said Britt Coulson, President & COO of Coulson Aviation. “As the industry transitions to Sustainable Aviation Fuels and more complex global supply chains, the risks multiply and even small deviations can have catastrophic consequences. When only a few gallons of off-spec fuel can bring down a $100 million aircraft, it’s time for aviation to recognize that fuel is the final unmonitored frontier. SafeFuel closes that gap permanently.”