Fuel
NBAA Seeks Training To Guard Against DEF Contamination
NBAA welcomed proposed FAA guidance on DEF contamination but believes it could go further to safeguard against such incidents.

Concerned about the number of incidents surrounding diesel exhaust fluid (DEF) contamination, NBAA welcomed the FAA’s proposed changes to an advisory circular to highlight these issues. However, NBAA believes the draft guidance could go further to emphasize the hazards of such contamination and the need for proper training at both Part 139 certificated and non-certificated airports.