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NATA offers unleaded avgas best practices
As the use of leaded fuels is eliminated, 100LL availability must be maintained during the transition. NATA's white paper suggests how to safely manage UL Avgas and 100LL provision for the existing GA fleet.

National Air Transportation Association (NATA) has released 'Unleaded Avgas Conversion Considerations for Aviation Fuel Providers', a white paper developed by the association's GA Fuel Subcommittee, with industry input and support, to educate fuel service providers on best practices for deploying unleaded avgas.

“With the spotlight glowing ever brighter on unleaded aviation fuels, industry stakeholders have been proactively seeking information on considerations for offering more environmentally friendly fuel options,” says managing director of industry and regulatory affairs Megan Eisenstein. “NATA is pleased to offer guidance to assist them in taking a leadership role in advancing the national effort to reduce lead emissions from piston-engine aircraft through safe and effective unleaded avgas implementation.”

NATA, along with other industry and government stakeholders, supports the Eliminate Aviation Gasoline Lead Emissions (EAGLE) Initiative's goal of a lead-free future for US piston-engine aircraft by the end of 2030. FAA's recent issuance of supplemental type certificates (STCs) approving the use of General Aviation Modifications' 100 octane unleaded avgas (G100UL) in all spark-ignition piston aircraft and engines in the general aviation (GA) fleet represents a major step forward for the future of unleaded avgas, with other fuel producers such as Swift Fuels, Phillips66/Afton Chemical, and Lyondell Chemical/VP-Racing also actively pursuing approvals.

Among EAGLE's aims is eliminating the use of leaded fuels without adversely impacting the safe and efficient operation of the existing GA fleet, which includes maintaining 100 Low Lead (100LL) availability across the country during the transition.

NATA's white paper assists in the effort by suggesting four key phases for fuel providers offering UL Avgas in addition to 100LL: Discovery, Preliminary Communications, Infrastructure Considerations and Final Communications.

Once multiple grades of Avgas are deployed at airports, the key concern becomes the increased risk for misfuelling.

“It is critical to have a misfuelling prevention programme in place and to implement comprehensive management of change processes and perform risk assessments when introducing new fuels,” says managing director of safety and training Steve Berry. “Keeping lines of communication open between pilots and FBOs throughout the fuelling process is also essential.”

NATA, through its Safety 1st programme, provides free misfuelling prevention training and resources at www.preventmisfueling.com and will soon release a new version of this training, highlighting UL misfuelling.

Additional information on the Eagle Initiative a NATA-developed unleaded avgas fact sheet can be found on the NATA website.

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