FAA—Federal Aviation Administration

FAF—Final Approach Fix

FAP—Final Approach Point

FB—Fly-By

FCC—Federal Communications Commission

FD—Flight Director

FDP—Flight Data Processing

FE—Flight Engineer

FIR—Flight Information Region

FIS—Flight Information System

FIS-B—Flight Information Services–Broadcast

FISDL—Flight Information Services Data Link

FL—Flight Level

FL CHG—Flight Level Change

FLIR—Forward Looking Infra-Red

FMC—Flight Management Computer

FMS—Flight Management System

FO—Fly-Over

FOM—Flight Operations Manual