Contraction

Definition

Usage

F

Cleared to fix

ATC

F

fahrenheit

GEN

F

flight inspection

GEN

FA

area forecast

NWS

FA

fuel advisory

ATC

FA

final approach

ATC

FA CENTER

Aviation Area Forecast Center

GEN

FAA

Federal Aviation Administration

GEN

FAA

for an approach to

ATC

FAA­1

SafeAir One­Federal Aviation Administration Administrator

ATC

FAA­2

SafeAir Two­Federal Aviation Administration Deputy Administrator

ATC

FAAP

federal aid to airports program

GEN

FAAR

FAA requirements

GEN

FAC

facility

GEN

FACF

facility chief

GEN

FACSFAC

Fleet Area Controlled and Surveillance Facility

ATC

FAD

fuel advisory departure

GEN

FAF

final approach fix

ICAO

FAFAB

FSS assumes flight­plan area and Service B

GEN

FAH

fahrenheit

NWS

FAL

facilitation of international air transport

ICAO

FAM

familiar or familiarization

GEN

FAMAE

following amendment authorized effective

GEN

FAP

final approach point

ICAO

FAR

Federal Aviation Regulations

GEN

FATFL

FSS assumes control of tower frequencies and lights

GEN

FAX

facsimile

GEN

FBO

fixed­base operator

GEN

FC

funnel cloud

METAR

FCA

frequency change approved

ATC

FCC

Federal Communications Commission

GEN

FCFSS

FAA Contract Flight Service Station

GEN

FCO

facility coordination officer

GEN

FCRP

field condition report

ATC

FCST

forecast

GEN

FCTA

flow control time of arrival

ATC

FCWOS

FAA Contract Weather Observing Station

GEN

FDAT

flight data

GEN

FDC

Flight Data Center

GEN

FDDL

frequency division data link

GEN

FDEP

flight data entry and printout

ATC

FDI

Fault Detection and Isolation

ATC

FDIO

flight data input/output

ATC

FDIOR

flight data input/output repeater

ATC

FDPS

Flight data processing system

ICAO

FE

flight engineer

GEN

FENKN

fuel supply unknown

ATC

FENTL

fuel supply until

ATC

FEW

1 or 2 octas (eighths) cloud coverage

METAR

FEXHA

fuel supply exhausted

ATC

FFC

for further clearance

ATC

FFLT

familiarization flight

GEN

FFMN

fixed federal monitoring network

GEN

FFR

Fire fighting

ICAO

FG

fog

METAR

FGSB

FSS guarding Service B

GEN

FI/P

flight information (permanent)

GEN

FI/T

flight information (temporary)

GEN

FIBI

filed but impracticable to transmit

NWS

FIC

Flight Information Center

GEN

Flight Inspection District Office

GEN

FIFO

Flight Inspection Field Office

GEN

FIFO­H

Flight Inspection Field Office ­ High Altitude

GEN

FIFP

filed IFR flight plan

ATC

FIG

figure

GEN

FIG

flight inspection group

GEN

FIL

filament

GEN

FILG

filling

NWS

FILS

florescan instrument landing system

GEN

FINO

weather report will not be filed for transmission

NWS

FIR

Flight Information Region

GEN

FIRAV

first available

GEN

FIRB

Flight Information Region Boundary

GEN

FIRG

firing

GEN

FIRIV

arrival report will be filed with

ATC

FIS

flight information service

GEN

FISA

automated flight information service

ICAO

FL

flash advisory

NWS

FL

flight level

GEN

FLCTN

fluctuation

GEN

FLD

field

ICAO

FLDST

flood stage

NWS

FLG

falling

NWS

FLG

flashing

ICAO

FLIDAP

flight data position

GEN

FLIP

flight information publication

GEN

FLORL

fluorescent runway lighting (floodlight system)

GEN

FLR

flares

ICAO

FLRY

flurry

NWS

FLT

flight

GEN

FLTCK

flight check

GEN

FLTO

flight orders

GEN

FLTWO

flight watch outlet

GEN

FLUC

fluctuating

ICAO

FLW

follow

GEN

FLWIS

flood warning issued

NWS

FM

fan marker

GEN

FM

from

ICAO 

FMAP

fan marker approach

ATC

FMH

fan marker located with radio beacon

GEN

FMO

frequency management officer

GEN

FMS

Flight management system

ICAO

FMT

format

GEN

FMU

flow management unit

ICAO

FNA

final approach

ICAO

FNCTN

function

GEN

FNT

Front

NWS

FNTGNS

frontogenesis

NWS

FNTLYS

frontolysis

NWS

FOB

fuel on board

GEN

FOD

foreign object debris

GEN

FONE

telephone

GEN

FORNN

forenoon

NWS

FP

flight plan

GEN

FPA

flight plan area

ATC

FPB

flight progress board

ATC

FPDI

flight path deviation indicator

GEN

FPL

filed flight plan

ICAO

FPL

full performance level

ATC

FPM

feet per minute

GEN

FPN

fixed pulse radar navigation aid

GEN

FPNO

flight plan not received

GEN

FPP

from present position

ATC

FPR

flight plan route

GEN

FPRC

for possible reclearance

ATC

FPWA

further particulars when available

ATC

FQT

frequent

GEN

FR

fuel remaining

GEN

FRC

full route clearance

GEN

FRD

fix­radial­distance

ATC

FREQ

frequency

ICAO

FRFAB

FSS returns flight­plan area and Service B

GEN

FRH

fly runway heading

ATC

FRM

form

GEN

FRMG

forming

NWS

FRMN

formation

GEN

FRNG

firing

ICAO

FROPA

frontal passage

NWS

FROSFC

frontal surface

NWS

FRQ

frequent

ICAO

FRSB

FSS returns Service B

GEN

FRST

frost

NWS

FRTFL

FSS returns control of tower frequencies and lights

GEN

FRWF

forecast wind factor

NWS

FRZ

freeze

NWS

FRZLVL

freezing level

NWS

FRZN

frozen

NWS

FSDO

Flight Standards District Office

GEN

FSL

full stop landing

ATC

FSM

flight schedule monitor

ATC

FSNFO

Flight Standards National Field Office

GEN

FSP

flight strip printer

GEN

FSS

Flight Service Station

ICAO

FT

feet

ICAO

FT

filing time

GEN

FT

foot

GEN

FTAR

following transmitted as received (message handling)

GEN

FTHR

farther or further

GEN

FTHRD

feathered

ATC

FTS

Federal Telecommunications System

GEN

FU

smoke

METAR

FURN

furnish

GEN

FV

forward visibility (miles)

ATC

FVFP

filed VFR flight plan

ATC

FW/SIFR

fixed wing special IFR

GEN

FW/SVFR

fixed wing special VFR

GEN

FWA

flight watch area

GEN

FWC

Fleet Weather Central

NWS

FWCS

flight watch control station

GEN

FWD

forward

GEN

FWDC

forward collect

GEN

FWP

flight watch point

GEN

FWRNG

fire warning

GEN

FWS

flight watch specialist

GEN

FWU

flight watch unit

GEN

FYI

for your information

GEN

FZ

supercooled/freezing

METAR

FZDZ

freezing drizzle

METAR

FZFG

freezing fog

METAR

FZRA

freezing rain

METAR

FZRANO

freezing rain sensor not available

METAR