Skip to page content

USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

United States Department of Transportation United States Department of Transportation

AC 33.67-1 - Engine Fuel Systems

Document Information

Number
33.67-1
Title
Engine Fuel Systems
Status
Active
Date issued
2024-05-20
Office of Primary Responsibility
AIR-625, Interactive Org Chart: Engine & Propulsion Section
Description

This advisory circular (AC) provides guidance for demonstrating compliance with the
requirements of Title 14, Code of Federal Regulations (14 CFR) Section 33.67, Fuel
system. This AC addresses turbine aircraft engine compliance methods, failure modes,
§33.67 lessons learned, and references to associated aircraft-level guidance. It does not
address aircraft-level fuel system icing effects or compliance.
2.

Content