InFO
Information for Operators
U.S. Department InFO 08004
of Transportation DATE: 2/7/08
Federal Aviation
Administration Flight Standards Service
Washington, DC
http://www.faa.gov/other_visit/aviation_industry/airline_operators/airline_safety/info
An InFO contains valuable information for operators that should help them meet certain administrative, regulatory,
or operational requirements with relatively low urgency or impact on safety.
Subject: Comparison of Minimum Fuel, Emergency Fuel and Reserve Fuel
Purpose: This InFO is issued to provide education and clarification for operators and pilots
about the appropriate use and meaning, connotations and regulatory definitions of the terms
“minimum fuel,” “emergency fuel,” and “reserve fuel.”
Background and Definitions:
a. Minimum Fuel. The Aeronautical Information Manual (AIM) and the Pilot/Controller
Glossary both provide the following definition, which states that, Minimum Fuel:
“Indicates that an aircraft’s fuel supply has reached a state where, upon
reaching the destination, it can accept little or no delay. This is not an
emergency situation but merely indicates an emergency situation is
possible should any undue delay occur.”
“Minimum fuel” declarations are essentially advisory in nature to air traffic control (ATC).
FAA Order 7110.65R, Air Traffic Control, states in paragraph 2-1-8, Minimum Fuel:
“If an aircraft declares a state of “minimum fuel,” inform any facility to
whom control jurisdiction is transferred of the minimum fuel problem and
be alert for any occurrence which might delay the aircraft en route.”
Note: Use of the term “minimum fuel” indicates recognition by a pilot that his/her fuel
supply has reached a state where, upon reaching destination, he/she cannot accept any
undue delay. This is not an emergency situation but merely an advisory that indicates an
emergency situation is possible should any undue delay occur. A minimum fuel advisory
does not imply a need for traffic priority. Common sense and good judgment will
determine the extent of assistance to be given in minimum fuel situations. If, at any time,
the remaining usable fuel supply suggests the need for traffic priority to ensure a safe
landing, the pilot should declare an emergency and report fuel remaining in minutes.
Approved by: AFS-200