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EAGLE

Mar 2025: Clearing the Air: How Unleaded Aviation Fuel Is Gaining Approval – Part 3: The Role of Industry Consensus Standards in the Approval and Use of Unleaded Aviation Fuel

by Eagle | Mar 4, 2025 | Updates

This is the third installment of a three-part series explaining how the next generation of unleaded aviation fuels may be authorized for use in specific engines and aircraft. The first installment covered Supplemental Type Certificates (STC) and Approved Model List...

Feb 2025: Clearing the Air: How Unleaded Aviation Fuel Is Gaining Approval – Part 2: How Does an Unleaded Fuel Gain Approval Through the FAA Fleet Authorization Process?

by Eagle | Feb 4, 2025 | Updates

This is the second installment in a three-part series explaining how the next generation of unleaded aviation fuels may be authorized for use in specific engines and aircraft. This segment focuses on the FAA’s Fleet Authorization process, developed utilizing the...

Dec 2024: Clearing the Air: How Unleaded Aviation Fuel Is Gaining Approval – Part 1: Understanding the STC process and why it matters to pilots and aircraft owners

by Eagle | Dec 4, 2024 | Updates

This is the first in a three-part series explaining how the next generation of unleaded aviation fuels may be authorized for use in specific engines and aircraft. This installment examines the Type Certificate (TC) and Supplemental Type Certificate (STC) processes,...

Dec 2024: NASA Corrects Report of Damage Caused by New Unleaded Aviation Fuel

by Eagle | Dec 1, 2024 | Updates

NASA’s Aviation Safety Reporting System (ASRS) has amended a report (December 2024 CALLBACK) that incorrectly attributed deterioration of cadmium-plated bolts in an aircraft’s fuel system to an approved aviation gasoline unleaded fuel, Swift Fuels’ UL94. It was later...

Nov 2024: Pilots & Aircraft Owners: Stay Vigilant as New Unleaded Aviation Fuels Roll Out

by Eagle | Nov 4, 2024 | Updates

For more information on the transition to unleaded aviation fuel, visit: https://flyEAGLE.org The growing availability of unleaded aviation fuel represents a crucial step toward eliminating lead emissions from aircraft. However, it also introduces new misfueling risks...

Fall 2024: The Path to Unleaded Avgas: A Critical Transition for Aviation

by Eagle | Sep 4, 2024 | Updates

The aviation community has long recognized the need to eliminate lead emissions from piston-engine aircraft, a goal set to be achieved by the end of 2030 through the leadership of the Eliminate Aviation Gasoline Lead Emissions (EAGLE) initiative. This ambitious...
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Recent Posts

  • Jul 2025: Flying Toward a Lead-Free Future: What Aircraft Owners and Pilots Can Expect
  • Jun 2025: FAA Clarifies Grant Assurance Requirements for Federally Funded Airports, Ensuring Access to 100LL
  • Jun 2025: Judge Rejects Effort to Mandate Unleaded Avgas Sales in California – Cites Lack of Industry Consensus, ASTM Spec
  • Jun 2025: New EAGLE Interactive Toolkit Offers Insight into Unleaded Fuel Transition, Status
  • May 2025: An Avgas Transition for the Last Frontier

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Eliminate Aviation Gasoline Lead Emission Initiative

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