FAA Looking Into Possible G100UL Fuel Issues

Credit: General Aviation Modifications, Inc. (GAMI)
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Key Takeaways:

  • The FAA is investigating reports of aircraft damage, including peeling paint and fuel leaks, potentially linked to GAMI's G100UL unleaded fuel in California.
  • Incidents have been reported primarily at Watsonville Airport, with G100UL also sold at Reid-Hillview Airport and used by over 100 STC-approved aircraft in the region.
  • GAMI is responding to inquiries, conducting its own materials testing, and encouraging operators to report any suspected fuel-related issues.
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The FAA is now reportedly investigating reports of damage to aircraft related to their use of GAMI’s G100UL unleaded fuel in California. Inspectors looked at several planes involved at Watsonville Airport south of San Francisco. Various incidents of peeling paint, leaking fuel tanks and even a bent pushrod/seized valve have been reported in various forums.

GAMI is responding to inquiries and doing its own materials testing and is encouraging operators who believe the fuel is affecting their aircraft to report incidents. G100UL is being sold at Watsonville and Reid-Hillview Airport near San Jose. More than 100 airplanes at those fields and some from neighboring airports have the STC that allow them to use the unleaded gas.

Russ Niles

Russ Niles is Editor-in-Chief of AVweb. He has been a pilot for 30 years and joined AVweb 22 years ago. He and his wife Marni live in southern British Columbia where they also operate a small winery.
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