Welcome Guest. Sign in or Signup

1 Answers

91.144 abnormally high barometric pressure

Asked by: 687 views FAA Regulations

91.144(a) no person may operate an aircraft, or initiate a flight contrary to the requirements established by the administrator and published in the NOTAMS under this section.

does this mean you cannot fly if barometric pressure is above 31.00 without authorization (aka 91.144(b))? 

also, what does the NOTAMS part mean exactly?

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.

1 Answers



  1. Bryan on Dec 21, 2022

    What 91.144(a) is saying is that if the barometric pressure is going to be at or above 31 inches of mercury, there WILL be a NOTAM outlining the requirements/restrictions to deal with that abnormal pressure and you have to follow whatever restrictions are in that NOTAM…unless you get a waiver for the purposes outlined in (b).

    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.