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NOTAMs not removed past its expiration date: are they still valid?

Asked by: 4022 views General Aviation

It's been 13 days since a NOTAM expired, but it is still posted online. Given that the NOTAM expiration was an estimated date (EST), does that mean the NOTAM is still officially in effect? I would think FAA would republish the NOTAM with an updated expiration date if they knew it would last longer.

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2 Answers



  1. Andy on Sep 15, 2015

    Yes the notam is still in effect. EST does in fact mean estimated. You can always call the managing facility of the notam and ask as well.

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  2. qmrlc on Feb 13, 2019

    This is no longer true. NOT sure about ICAO NOTAMs but U.S NOTAM expires at EST time.

    see FAA Order 7930.20S

    (a) If the NOTAM duration is expected to return to service prior to the End of Validity time, express the time by using a date−time group followed immediately by “EST” (estimate). Any NOTAM that includes an “EST” must be canceled or replaced before the NOTAM reaches its End of Validity time. If the NOTAM is not canceled or replaced, it will expire at the end of validity time regardless of EST. FDC NOTAMs relating to instrument flight procedures must not be canceled and reissued.

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