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Glossary & Acronyms

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A

• ACARS: Aircraft Communications Addressing and Reporting System
• ADF: Automatic Direction Finder
• ADS-B: Automatic Dependent Surveillance-Broadcast
• AFE: Above Field Elevation
• AFM: Aircraft Flight Manual
• AGL: Above Ground Level
• ALTN: Alternate
• APU: Auxiliary Power Unit
• ASR: Air Safety Report
• ATC: Air Traffic Control
• ATIS: Automatic Terminal Information Service

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B

• BCBS: Brain-Centered Body Scanning
• BDRT: Both Dependent Runway Thresholds (simultaneous operations)

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C

• CAT: Category (as in CAT I/II/III ILS approaches)
• CDA: Continuous Descent Approach
• CDL: Configuration Deviation List
• CDU: Control Display Unit
• CG: Center of Gravity
• CI: Cost Index
• CRM: Crew Resource Management
• CVR: Captain’s Voyage Report / Cockpit Voice Recorder

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D

• DA/DH: Decision Altitude/Decision Height
• EICAS: Engine Indication and Crew Alerting System
• ECAM: Electronic Centralized Aircraft Monitor
• EODP: Engine-Out Departure Procedure
• ETOPS: Extended-range Twin-engine Operations Performance Standards

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F

• FAF: Final Approach Fix
• FCU: Flight Control Unit
• FD: Flight Director
• FDR: Flight Data Recorder
• FGCS: Flight Guidance Control System
• FL: Flight Level
• FMC/FMGC: Flight Management Computer/Flight Management Guidance Computer
• FMS: Flight Management System
• FOD: Foreign Object Debris
• FOQA: Flight Operations Quality Assurance
• FRMS: Fatigue Risk Management System

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G

• GNSS: Global Navigation Satellite System
• GPU: Ground Power Unit
• GPWS/EGPWS: (Enhanced) Ground Proximity Warning System

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H

• HF: High Frequency (radio)
• HOT: Hold-Over Time
• HUD: Head-Up Display

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I

• IAF: Initial Approach Fix
• ICAO: International Civil Aviation Organization
• ILS: Instrument Landing System
• IMC: Instrument Meteorological Conditions
• IROP: Irregular Operations
• ISA: International Standard Atmosphere

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L

• LNAV: Lateral Navigation
• LOFT: Line-Oriented Flight Training
• LVP: Low Visibility Procedures

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M

• MAC: Mean Aerodynamic Chord
• MCP: Mode Control Panel
• MEA: Minimum Enroute Altitude
• MEL: Minimum Equipment List
• METAR: Meteorological Aerodrome Report
• Mmo: Maximum Operating Mach Number
• MSA: Minimum Sector Altitude
• MTOW: Maximum Take-Off Weight

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N

• NADP: Noise Abatement Departure Procedure
• NAT HLA: North Atlantic High Level Airspace
• ND: Navigation Display
• NOTAM: Notice to Air Missions

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O

• OAT: Outside Air Temperature
• OFP: Operational Flight Plan

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P

• PA: Public Address
• PAPI: Precision Approach Path Indicator
• PBN: Performance-Based Navigation
• PF: Pilot Flying
• PIC: Pilot-in-Command
• PM: Pilot Monitoring

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Q

• QFE: Atmospheric pressure at aerodrome elevation
• QNH: Altimeter setting to display elevation above sea level
• QRH: Quick Reference Handbook

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R

• RA: Resolution Advisory (TCAS) / Radio Altimeter
• RNAV: Area Navigation
• RNP: Required Navigation Performance
• RTO: Rejected Take-Off
• RVR: Runway Visual Range
• RVSM: Reduced Vertical Separation Minimum

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S

• SELCAL: Selective Calling System
• SID: Standard Instrument Departure
• SIGMET: Significant Meteorological Information
• SIM: Simulator
• SLOP: Strategic Lateral Offset Procedure
• SOPs: Standard Operating Procedures
• STAR: Standard Terminal Arrival Route

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T

• TA: Traffic Advisory (TCAS)
• TCAS: Traffic Collision Avoidance System
• TEM: Threat and Error Management
• TOD: Top of Descent
• TOGA: Take-Off/Go-Around thrust setting
• TOW: Take-Off Weight

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V

• V1: Decision speed
• V2: Take-off safety speed
• VAPP: Approach speed
• VNAV: Vertical Navigation
• VMC: Visual Meteorological Conditions
• Vmo: Maximum Operating Speed
• VOR: VHF Omnidirectional Range
• VR: Rotation speed
• Vref: Reference speed

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W

• WOCL: Window of Circadian Low
• WX: Weather

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Z

• ZFW: Zero Fuel Weight