Definition
An air traffic facility that provides pilot briefings, relays clearances between pilots and air traffic control, supports search and rescue, assists pilots in distress, originates Notices to Air Missions (NOTAMs), processes flight plans, and monitors navigational aids. FSS specialists do not separate or sequence aircraft; they are an information and assistance service, not a control facility.
Plain English
A government service pilots contact for weather briefings, to file or open a flight plan, and to get help with information about a route. It is staffed by specialists who give advice and information but do not direct traffic.
Context Anchor
Seen in flight planning, instrument procedure material, and special use airspace discussions when a pilot is directed to contact Flight Service for current information.
Why Pilots Care
Provides critical preflight information and flight-plan handling that supports safe and legal flight, especially near restricted or special-use airspace.
Intuition Check
Do not read FSS as an air traffic control facility. FSS gives flight information and services, but it does not control your aircraft or clear you through airspace.
Example Sentence 1
Before departure, the pilot called FSS for a standard weather briefing and to file the IFR flight plan.
Example Sentence 2
After landing, the pilot contacted FSS to close the VFR flight plan.