In an update posted on the agency’s website, the FAA said although two unleaded replacement fuels have been chosen for the Piston Aviation Fuels Initiative (PAFI), flight and some engine testing has been paused to assess the effects they will have on the larger GA fuel producing industry and the GA fleet.
FAA Pauses Unleaded Replacement Fuel Testing
Key Takeaways:
- The FAA has paused flight and engine testing for the two chosen unleaded replacement fuels (from Shell and Swift) under the Piston Aviation Fuels Initiative (PAFI).
- This pause is to assess the potential impact of these new fuels on the broader general aviation fuel industry and existing fleet.
- The delays caused by this evaluation have extended the PAFI testing completion date to December 2019.
- The PAFI program aims to replace 100LL aviation gasoline, which is the largest contributor to low-level toxic lead emissions in the United States.
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