Definition
Time-critical aeronautical information published by the FAA that is of either a temporary nature or not known far enough in advance to be included on aeronautical charts or in other operational publications. Notices to Airmen cover items such as runway closures, navigation aid outages, temporary flight restrictions, changes in airport status, and hazards along a planned route of flight.
Plain English
Short notices that tell pilots about recent or temporary changes affecting flight, such as a closed runway, a broken navigation beacon, or a restricted area, that are too new or too short-lived to appear on regular charts.
Context Anchor
Seen during preflight planning, weather briefings, airport checks, and flight instruction when reviewing whether a planned flight can be made safely and legally.
Derivation
From 'notice' (a formal announcement) and 'airmen' (an older term for pilots and aircrew). The phrase is commonly shortened to NOTAM. The name simply means 'announcements for people who fly.'
Why Pilots Care
Pilots must check them before every flight to avoid unexpected hazards such as closed runways or equipment outages.
Intuition Check
Do not read Notices to Airmen as general news or casual announcements. In aviation, they are official, time-sensitive flight information that can directly affect a pilot's go/no-go decision.
Example Sentence 1
During preflight planning, the student pilot reviewed all Notices to Airmen along the route and noticed that the destination runway was closed for maintenance.
Example Sentence 2
A temporary tower outage appeared in the Notices to Airmen, so the crew adjusted their arrival plan.