Which service provides preflight briefings, flight plan processing, inflight advisory services, search and rescue initiation, and assistance to aircraft in emergencies?

• A. UNICOM
• B. ATIS
• C. Flight Service Station (FSS)
• D. CTAF

Answer: (C)

Flight Service Station provides preflight briefings, flight plan processing, inflight advisory services, search and rescue initiation, and assistance to aircraft in emergencies. This service is the pilot’s main source for weather briefs, filing and managing flight plans, and receiving guidance or updates while en route, plus coordinating SAR and emergency support when needed. The other options serve different, more limited roles: UNICOM is a general advisory channel at uncontrolled airports, not for flight planning or SAR; ATIS delivers weather and airport information but not flight plan processing or emergency coordination; CTAF is the shared frequency for pilots to announce intentions at non-towered airports, with no flight planning or SAR functions. Therefore, the service that covers all the listed capabilities is the Flight Service Station.