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Abbreviation	Definition
FCF	First Captive Flight
FCF	Flight Critical Forward
FCF	Functional Check Flight
FCFM	Flight Combustion Facility Monitor
FCH	Flight Controllers Handbook
FCHL	Flight Control Hydraulics Laboratory
FCI	Flight Control Indicator
FCIM	Flight Control Interface Module
FCIP	Flight Cargo Implementation Plan
FCIT	First Computer Interface Tester
FCL	Fluid Coolant Loop
FCL	Foldback Current Limiter
FCL	Freon Coolant Line
FCMU	Foot Controlled Maneuvering Unit
FCN	FunCtioN
FCO	Functional CheckOut
FCOH	Flight Controllers Operational Handbook
FCOS	Flight Computer Operating System
FCOS	Flight Control Operating System
FCOS	Flight Control Operational Software

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