Welcome Guest. Sign in or Signup

2 Answers

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

Asked by: 3756 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.

Ace Any FAA Written Test!
Actual FAA Questions / Free Lifetime Updates
The best explanations in the business
Fast, efficient study.
Pass Your Checkride With Confidence!
FAA Practical Test prep that reflects actual checkrides.
Any checkride: Airplane, Helicopter, Glider, etc.
Written and maintained by actual pilot examiners and master CFIs.
The World's Most Trusted eLogbook
Be Organized, Current, Professional, and Safe.
Highly customizable - for student pilots through pros.
Free Transition Service for users of other eLogs.
Our sincere thanks to pilots such as yourself who support AskACFI while helping themselves by using the awesome PC, Mac, iPhone/iPad, and Android aviation apps of our sponsors.

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.

    0 Votes Thumb up 0 Votes Thumb down 0 Votes



  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.

    0 Votes Thumb up 0 Votes Thumb down 0 Votes


The following terms have been auto-detected the question above and any answers or discussion provided. Click on a term to see its definition from the Dauntless Aviation JargonBuster Glossary.

Answer Question

Our sincere thanks to all who contribute constructively to this forum in answering flight training questions. If you are a flight instructor or represent a flight school / FBO offering flight instruction, you are welcome to include links to your site and related contact information as it pertains to offering local flight instruction in a specific geographic area. Additionally, direct links to FAA and related official government sources of information are welcome. However we thank you for your understanding that links to other sites or text that may be construed as explicit or implicit advertising of other business, sites, or goods/services are not permitted even if such links nominally are relevant to the question asked.