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Low Fuel v.s. Emergency Fuel

Asked by: 5493 views , , , , ,
Aircraft Systems, Commercial Pilot, FAA Regulations, General Aviation, Instrument Rating

Hi!

Recently my classmate was failed in his Instrument Rating checkride, because of this question: What are the definitions of minimum fuel, low fuel and emergency fuel?

I could not find any documentations explaining the differences between emergency fuel and low fuel.

Any thoughts? Thanks.

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1 Answers



  1. R. Anderson on May 16, 2017

    This is a note from the Air Traffic Controller’s handbook, 7110.65W, paragraph 2-1-8:

    “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.”

    Also, see the info in the AIM paragraph 5-5-15 “Minimum Fuel Advisory” and look at the term “Fuel Remaining in the AIM Pilot/Controller Glossary.

    My opinion: “minimum fuel” is alerting the controller that any undue delay of your flight could result in an “emergency fuel” situation. However, no special handling required (e,g,, diverting other traffic, opposite direction landing, etc.).

    I don’t believe “low fuel” has a specific meaning beyond a similarity to “minimum fuel.” But, it’s wise to use the proper terminology in accordance with the AIM to ensure that your actual fuel status is understood and proper handling by ATC therefore can be expected. The AIM terminology conforms to the Controller’s Handbook information.

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