Fuel Contamination

Jet fuel contamination incidents have raised concerns in the aviation industry, prompting NBAA and others to investigate causes, including increased diesel exhaust fluid (DEF) presence around airports. In 2019, there were four separate identified events where DEF-contaminated aviation fuel affected 15 business aircraft, three of which led to in-flight engine failure. While all affected aircraft were able to land safely, a DEF fuel contamination event could lead to catastrophic consequences if not detected.

Operators and airport personnel are urged to read NBAA’s coverage of the events to ensure they’re aware of potential risk factors involving aviation fuel contamination by DEF.