EFAS - En Route Flight Advisory Service - Aviation Term - Abbreviation / Acronym
Related Definitions from Aviation Glossary
GSA
GHA
Military Operations Area (MOA)
ATA - Air Transport Association
MRO ...
EFAS. See En Route Flight Advisory Service.
EFC. See expect-further-clearance.
EFAS - electronic flash approach light system.
EFATO - engine failure at (or after) take-off ...
FLIGHT WATCH or EFAS FSS priority handling of real-time weather information to airborne flights (rather than for preflight planning) on a single national radio frequency of 122.0 MHz (low altitude).
Flight Watch is the common name in the United States for an Enroute Flight Advisory Service (EFAS) dedicated to providing weather to and collecting it from pilots operating at lower altitudes (mostly general aviation).
 See also: Aircraft, Navigation, Pilot, Altitude, Route
  
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