Res Communis

FAA publishes new Advisory Circular for aviation fuel approvals

by Sara M. Langston with the blog faculty

Source: FAA

AC 20-24C Approval Propulsion Fuels and Lubricating Oils (July 29, 2011)

Source: AVweb

The FAA has published a new Advisory Circular providing guidance for the approval of new aeronautical fuels. Issuance of the document aims to “facilitate the aviation fuel approval process,” according to the FAA, by “clarifying and describing” acceptable methods of compliance to existing FAA regulations. But unknown to most in the industry who aren’t involved in fuel work, AC 20-24 sparked controversy last summer when proponents of a quick replacement for 100LL complained to FAA’s upper management that the agency’s Engine and Propeller Directorate was dragging its feet on allowing STCs for fuel approvals. [more]