Glossary
A
- A
- ampere
- A&P
- airframe and powerplant
- AAIB
- Aircraft Accident Investigation Bureau (Swiss)
- AC
- Advisory Circular
- AC
- alternating current
- ACARS
- aircraft communications addressing and reporting system
- ACC
- air conditioning controller
- ACC
- area control centre
- ACO
- Aircraft Certification Office
- ACP
- audio control panel
- ACSEP
- Aircraft Certification Systems Evaluation Program
- AD
- Airworthiness Directive
- ADAS
- auxiliary data acquisition system
- ADC
- air data computer
- ADG
- air-driven generator
- ADT
- Atlantic daylight time
- AEG
- Aircraft Evaluation Group
- AEGIS
- Advanced Electronic Guidance and Instrumentation System
- AES
- airborne earth station (within discussion of ACARS)
- AES
- Auger electron spectroscopy (within discussion of material analysis)
- AFCB
- arc fault circuit breaker
- AFF
- aircraft firefighting
- AFM
- Airplane (or Aircraft) Flight Manual
- AFS
- auto flight system
- agl
- above ground level
- Al
- aluminum
- ALAR
- Approach and Landing Accident Reduction
- ALPA
- Air Line Pilots Association
- AMU
- audio management unit
- AND
- aircraft nose down
- ANU
- aircraft nose up
- AOC
- Air Operator Certificate
- AOL
- All Operator Letter
- AOM
- Aircraft Operations Manual
- AP
- Autopilot
- APU
- auxiliary power unit
- ARAC
- Aviation Rulemaking Advisory Committee
- ARINC
- Aeronautical Radio Inc.
- ARP
- Aerospace Recommended Practice
- ARSR
- air route surveillance radar (USA)
- ARTCC
- Air Route Traffic Control Center (USA)
- ASA
- Aviation Safety Advisory
- ASB
- Alert Service Bulletin
- ASC
- automatic systems control
- ASCP
- air systems control panel
- ASDE
- airport surface detection equipment
- ASHRAE
- American Society of Heating, Refrigeration and Air Conditioning Engineers
- ASIL
- Aviation Safety Information Letter
- asl
- above sea level
- ASN
- assigned serial number
- ASR
- Aviation Safety Recommendation
- ASTM
- American Society for Testing and Materials
- ASTRAC
- Aging Transport Systems Rulemaking Advisory Committee
- ATA
- Air Transport Association
- ATC
- air traffic control
- ATIS
- automatic terminal information service
- ATPL
- airline transport pilot licence
- ATS
- air traffic services
- AU
- avionics upper [panel]
- AVI
- Audio-Video Interleave [Microsoft]
- AWG
- American Wire Gauge
B
- BDN
- broadband distribution network
- BEA
- Bureau d'Enquêtes et d'Analyses pour la Securité de l'Aviation Civile (France)
- BIO
- Bedford Institute of Oceanography
C
- 14 CFR
- Title 14, Code of Federal Regulations (USA)
- °C
- degree(s), Celsius
- CAA
- civil aviation authority
- CAAC
- Civil Aviation Administration of China
- CAC
- center accessory compartment
- CAD
- computer-aided design
- CAM
- cockpit area microphone
- CANMET
- Canada Centre for Mineral and Energy Technology
- CARAC
- Canadian Aviation Regulation Advisory Council
- CARs
- Canadian Aviation Regulations
- CASS
- Continuing Analysis and Surveillance System
- CAVOK
- ceiling and visibility OK
- CB
- circuit breaker
- CC
- cluster controller
- cc
- cubic centimetre
- CCA
- circuit card assembly
- CCG
- Canadian Coast Guard
- CCGS
- Canadian Coast Guard Ship
- CDR
- critical design review
- CEA
- Central Engineering Agency
- CEM
- Cabin Emergency Manual
- CF
- Canadian Forces
- CFAV
- Canadian Forces Auxiliary Vessel
- CFB
- Canadian Forces Base
- CFD
- computational fluid dynamics
- CFM
- cubic feet per minute
- CFR
- Code of Federal Regulations (USA)
- CFS
- cabin file server
- CHS
- Canadian Hydrographic Services
- cm
- centimetre
- CME
- Chief Medical Examiner
- CMU
- communications management unit
- C of G
- centre of gravity
- COMPT
- compartment
- CPD
- circuit protection (or protective) device
- CPU
- central processing unit
- CRE
- component responsible engineering
- CRES
- corrosion resistant
- CRM
- cockpit (or crew) resource management
- CRP
- communication radio panel
- CSD
- certification supporting document
- CSR
- Canadian Seabed Research
- CSRTG
- Cabin Safety Research Technical Group
- CTIU
- cabin telephone interface unit
- CUMA
- Canadian Underwater Mine-countermeasures Apparatus
- CVFR
- controlled visual flight rules
- CVIS
- cabin video information system
- CVR
- cockpit voice recorder
- CYAW
- Halifax Shearwater Airport (Nova Scotia)
- CYHZ
- Halifax International Airport (Nova Scotia)
- CYQI
- Yarmouth Airport (Nova Scotia)
- CYQM
- Greater Moncton Airport (New Brunswick)
D
- D
- energy density expressed in J/m2
- DAS
- Designated Alteration Station
- DAU
- disk array unit
- dB
- decibel
- dBi
- decibel isotropic
- dBm
- decibel referenced to 1 milliwatt
- dBZ
- a unit of radar reflectivity used in meteorology
- DC
- direct current
- DCAS
- digitally controlled audio system
- DDS
- The FAA's DAS, DOA, and SFAR 36 Program
- DEU
- display electronic unit
- DFDAU
- digital flight data acquisition unit
- DFDR
- digital flight data recorder
- DFO
- Department of Fisheries and Oceans
- DIN
- Deutsche Industrie Norm
- DITS
- digital information transfer system
- DME
- distance measuring equipment
- DMS
- Douglas Material Specification
- DNA
- deoxyribonucleic acid
- DND
- Department of National Defence
- DOA
- Delegation Option Authorization
- DPS
- Douglas Process Standard
- DREA
- Defence Research Establishment Atlantic
- DSIS
- Deep Seabed Intervention System
- DTL
- Decorative PVF laminate
- DTM
- digital terrain model
- DU
- display unit
E
- E
- electric field strength
- E&E
- electrical and electronic equipment
- EAD
- engine and alert display
- EAPAS
- Enhanced Airworthiness Program for Airplane Systems
- EC
- Environment Canada
- ECM
- electronic countermeasures
- EDP
- engine-driven hydraulic pump
- EDT
- eastern daylight savings time
- EEC
- electronic engine control
- EEPROM
- electrically erasable programmable read-only memory
- EIRP
- effective isotropic radiated power
- EIS
- electronic instrument system
- ELA
- electrical load analysis
- ELT
- emergency locator transmitter
- EMC
- electromagnetic compatibility
- EMI
- electromagnetic interference
- EMO
- Emergency Measures Organization (or Office)
- EO
- engineering order
- EPC
- Emergency Preparedness Canada
- EPCU
- electrical power control unit
- EPR
- engine pressure ratio
- ESC
- environmental system controller
- ETFE
- ethylene-tetrafluoroethylene
- ETOPS
- Extended Range Twin Engine Operations
- EUROCAE
- European Organisation for Civil Aviation Equipment
- EXT
- extended
F
- °F
- degree(s), Fahrenheit
- F/A
- flight attendant
- FA1W
- Northeast Region Area Forecast
- FAA
- Federal Aviation Administration (USA)
- FACN35
- Canadian area forecast, District 35
- FADEC
- full-authority digital electronic control
- FAR
- Federal Aviation Regulation (USA)
- FAUS5
- US Area Forecast
- FBS
- fixed-base simulator
- FBV
- French Bureau Veritas
- FCC
- flight control computer
- FCOM
- Flight Crew Operating Manual
- FCP
- flight control panel
- FCRL
- flight crew reading light
- FD
- flight director
- FDAU
- flight data acquisition unit
- FDCU
- fire detection control unit
- FDM
- Flight Data Monitoring
- FDR
- flight data recorder
- FDU(A)
- Fleet Diving Unit (Atlantic)
- FE
- flap extension
- FEP
- fluorinated ethylene-propylene [resin]
- FH
- flight hours
- FIB
- focused ion beam
- FL
- flight level
- FMA
- flight mode annunciator
- FMC
- flight management computer
- FMS
- flight management system
- FMU
- fuel metering unit
- FO
- first officer
- FOC
- Flight Operations Centre (Swissair)
- FOCA
- Federal Office for Civil Aviation (Switzerland)
- FOCUS
- flight operations computer system
- FOEB
- Flight Operations Evaluation Board
- FOO
- flight operations officer
- FOQA
- flight operational quality assurance
- fpm
- feet per minute
- FR
- fluid-resistant [primer paint]
- FS
- frame station
- FSAW
- Flight Standards Information Bulletin for Airworthiness
- FSB
- Flight Standardization Board
- FSC
- fuel system controller
- FSEG
- Fire Safety Engineering Group - University of Greenwich
- FSR
- field service representative
- FSS
- flight service station
- ft.
- foot (feet)
- FWD
- forward
G
- g
- gravity
- GB
- gigabyte
- GB
- Swissair General/Basics: Flight Crew [manual]
- GCU
- generator control unit
- GES
- ground earth station
- GHz
- gigahertz
- GIS
- Geographic Information System
- gpm
- gallons per minute
H
- h
- hour(s)
- HCU
- hydraulic control unit
- HDD
- hard-disk drive
- HDS
- Halon Distribution System
- HDU
- head-end distribution unit
- HF
- high frequency
- HI
- Hollingsead International
- HIRF
- high-intensity radiated field
- HMCS
- Her Majesty's Canadian Ship
- HMU
- hydro-mechanical unit
- HPC
- high-pressure compressor
- HPT
- high-pressure turbine
- HSC
- hydraulic system controller
- HTML
- Hypertext Markup Language
- Hz
- hertz
I
- IAS
- indicated airspeed
- IC
- integrated circuit
- ICA
- Instructions for Continued Airworthiness
- ICAO
- International Civil Aviation Organization
- IDG
- integrated-drive generator
- IDN
- identification number
- IFE
- in-flight entertainment
- IFEN
- in-flight entertainment network [the IFE system of Interactive Flight Technologies]
- IFR
- instrument flight rules
- IFT
- Interactive Flight Technologies
- IGV
- inlet guide vanes
- IIC
- investigator-in-charge
- ILS
- instrument landing system
- IMC
- instrument meteorological conditions
- in.
- inch(es)
- in. Hg
- inches of mercury
- INMARSAT
- International Maritime Satellite Organization
- IPC
- Illustrated Parts Catalogue
- IRU
- inertial reference unit
- ISE
- International Submarine Engineering Ltd.
- ISO
- International Organization for Standardization
- ISOL
- isolation
- ISVD
- in-seat video display
- IVR
- image-based virtual reality
J
- J
- joule
- JAA
- Joint Aviation Authorities
- JAR
- Joint Aviation Requirements
- JCAB
- Civil Aviation Bureau of Japan
- JFK
- John F. Kennedy [International Airport] (New York)
K
- kB
- kilobyte
- KBGR
- Bangor International Airport (Maine)
- KBOS
- General Edward Lawrence Logan International Airport (Massachusetts)
- kg
- kilogram
- kHz
- kilohertz
- KIAS
- knots indicated airspeed
- km
- kilometre(s)
- kPa
- kilopascal(s)
- kt
- knot(s)
- kV
- kilovolt(s)
- kVA
- kilovolt-ampere
- kW
- kilowatt(s)
L
- L
- litre
- L/min
- litres per minute
- LAACO
- Los Angeles Aircraft Certification Office
- LAN
- local area network
- lat.
- latitude
- LAV
- lavatory
- lb
- pound(s)
- lb/min
- pound(s) per minute
- lbf
- pound force
- LCD
- liquid crystal display
- LEAF
- Laser Environmental Airborne Fluorosensor
- LKP
- last known position
- LLS
- laser line scan
- LLSG
- Geneva International Airport (Switzerland)
- LOI
- Letter of Intent
- long.
- longitude
- LOPA
- Layout of Passenger Accommodation
- LP
- low pressure
- LPC
- low-pressure compressor
- LPT
- low-pressure turbine
- LRU
- line replaceable unit
- LRW
- Laurentides
- LSAS
- longitudinal stability augmentation system
- LVDT
- linear variable differential transducer
M
- M
- Mach number
- °M
- degree(s), magnetic compass
- m
- metre
- MAC
- mean aerodynamic chord
- MACZFW
- mean aerodynamic chord zero fuel weight
- MANOPS
- [ATC] Manual of Operations
- MAPRC
- modified aromatic polyimide resin coating
- MAR
- main avionics rack
- MB
- megabyte
- M/C
- maître de cabine
- MCDU
- multifunction control display unit
- MCU
- Major Crimes Unit
- MD
- McDonnell Douglas
- MDC
- McDonnell Douglas Corporation
- MDF
- main debris field
- MDL
- master data list
- METAR
- aviation routine weather report
- MFM
- Modified Frequency Modulation
- MHz
- megahertz
- mi.
- mile(s)
- MIDO
- Manufacturing Inspection District Office
- MIL
- military [standard]
- min
- minute(s)
- mJ
- millijoule
- mL
- millilitre(s)
- MM
- maintenance manual
- mm
- millimetre(s)
- MO
- Modification Order
- MOC
- Military Operations Centre
- MOE
- maintenance organization exposition
- MPEG
- Motion Pictures Experts Group
- MPET
- metallized polyethylene terephthalate
- MPVF
- metallized polyvinyl fluoride
- MRB
- Maintenance Review Board
- ms
- milliseconds
- MSC
- miscellaneous system controller
- MSEP
- Marine Safety and Environmental Protection
- msl
- mean sea level
- MTEB
- management terminal electronic box
- MTOW
- maximum take-off weight
- MU
- management unit
- mV
- millivolt
- MVD
- management video display
- MW
- megawatt
N
- N/A
- not applicable
- N/C
- no change
- N1
- rotational speed of the low-pressure compressor in rpm or % rpm
- N1c2
- corrected low-pressure rotor speed (derived from Tt2)
- N2
- rotational speed of the high-pressure compressor in rpm or % rpm
- N2c2
- corrected high-pressure rotor speed (derived from Tt2)
- NARDS
- Nav Canada Auxilliary Radar Display System
- NAV
- navigation
- NAVAID
- navigational aid
- NCD
- no computed data
- ND
- navigation display
- NDB
- non-directional [radio] beacon
- NDU
- no data update
- NFPA
- National Fire Protection Association
- nm
- nautical mile(s)
- NORDO
- no radio (absence or failure of radio equipment)
- NPR
- National Program Review
- NPRM
- Notice of Proposed Rulemaking
- NRMP
- non-reversible motor pump
- NS TPW
- Nova Scotia Department of Transportation and Public Works
- NSU
- network switching unit
- NTO
- no technical objection
- NTSB
- National Transportation Safety Board (USA)
- NVM
- non-volatile memory
- NWS
- National Weather Service
O
- OCME
- Office of the Chief Medical Examiner
- OCR
- optical character recognition
- OD
- outside diameter
- ODA
- Organizational Designation Authorization
- OIG
- Office of the Inspector General (USA)
- oz
- ounce(s)
P
- P/B
- push button
- PA
- passenger address
- Pamb
- pressure, ambient
- PBE
- protective breathing equipment
- PBR
- planning based on re-clearance
- PET
- polyethylene terephthalate
- PF
- pilot flying
- PFD
- primary flight display
- PIC
- pilot-in-command
- PIREP
- pilot report (of in-flight conditions)
- PMA
- Parts Manufacturing Approval
- PMA
- permanent magnet alternator
- PN
- part number
- PNF
- pilot not flying
- PSEU
- proximity sensor electronic unit
- psi
- pounds per square inch
- psia
- pounds per square inch absolute [pressure]
- psig
- pounds per square inch gauge
- PSU
- power supply unit
- Pt2
- fan inlet total pressure
- Pt4.95
- total pressure at station 4.95 (exhaust)
- PTFE
- polytetrafluoroethylene
- PTT
- push-to-talk
- PVC
- polyvinyl chloride
- PVF
- polyvinyl fluoride
- PVF2
- polyvinylidene fluoride
- PWGSC
- Public Works and Government Services Canada
Q
- QA
- quality assurance
- QAR
- quick access recorder
- QN
- Queen of the Netherlands (name of dredge ship)
- QNH
- altimeter setting that references the indicated altitude to sea level
R
- R&D
- research and development
- RA
- radio altimeter
- RAM
- random access memory
- RCC
- Rescue Co-ordination Centre
- RCCB
- remote control circuit breaker
- RCMP
- Royal Canadian Mounted Police
- RF
- radio frequency
- RGS
- remote ground station
- RMP
- reversible motor pump
- ROV
- remotely operated vehicle
- rpm
- revolutions per minute
- RPT
- Radiant Panel Test
- RTCA
- Radio Technical Commission for Aeronautics
S
- s
- second(s)
- SAE
- Society of Automotive Engineers
- SAI
- standby attitude indicator
- SAR
- search and rescue
- SARP
- International Standards and Recommended Practices
- SATCOM
- satellite communications
- SB
- Service Bulletin
- SBA
- Santa Barbara Aerospace
- SCN
- Specification Change Notice
- SCP
- system control panel
- SCR
- Special Certification Review
- SCU
- supplemental control unit
- SD
- system display
- SDCP
- system display control panel
- SDR
- Service Difficulty Report
- SDU
- satellite data unit
- SDU
- seat disconnect unit (in discussion of IFEN system)
- SEB
- seat electronic box
- SFAR
- Special Federal Aviation Regulation (USA)
- SGC
- Site Group Chairperson
- SID
- standard instrument departure
- SIGMET
- significant meteorological information
- SITA
- Société Internationale de Télécommunications Aéronautiques (Airline Telecommunication and Information Services)
- SL
- Service Letter
- sm
- statute mile(s)
- SN
- serial number
- SPOT
- satellite pour l'observation de la terre
- SR 111
- Swissair Flight 111
- SRM
- Structural Repair Manual
- SSS
- side scan sonar
- STA
- manufacturing station
- STAR
- standard terminal arrival route
- STC
- Supplemental Type Certificate
- SVA
- stator vane actuator
- SWR
- Swiss Air Transport Company Ltd. (ATC designation)
T
- °T
- degree(s), True
- t
- tonne
- TAF
- terminal aerodrome forecast
- TAS
- true airspeed
- TAT
- total air temperature
- TBD
- to be determined
- TC
- Transport Canada
- TCA
- terminal control area
- TCAS
- traffic alert and collision-avoidance system
- TCJC
- temperature, cold junction, Celsius
- TEC
- turbine exhaust case
- TED
- trailing edge down
- TEL
- trailing edge left
- TEM
- transmission electron microscopy
- TER
- trailing edge right
- TEU
- trailing edge up
- TO
- Technical Order
- torr
- Torricelli, a non-metric unit of pressure equal to 1/760 atmosphere
- TOW
- take-off weight
- TR
- transformer rectifier
- TRA
- throttle resolver angle
- TSB
- Transportation Safety Board of Canada
- TSO
- Technical Standard Order
- Tt2
- total temperature of the air at Station 2 (compressor inlet)
- Tt4.95
- total temperature at Station 4.95 (exhaust)
- TWA
- Trans World Airlines
U
- U/S
- unserviceable
- UL
- Underwriter's Laboratory
- ULB
- underwater locator beacon
- URT
- Underwater Recovery Team
- US
- United States
- USA
- United States of America
- USN
- United States Navy
- USS
- United States Ship
- UTC
- Coordinated Universal Time
V
- V
- volt(s)
- VA
- volt-ampere
- VES
- video entertainment system
- VHF
- very high frequency
- VMC
- visual meteorological conditions
- Vmin
- FMC-calculated minimum operating speed
- VOD
- video on demand
- VOR
- very high-frequency omni-directional range [beacon]
- VSV
- variable stator vane
- VTR
- video tape recorder
- VTU
- verbal thought unit
W
- W
- watt
- WAN
- wide area network
- WDM
- Wiring Diagram Manual
- WS
- Work Statement
X
- XL-ETFE
- cross-linked ethylene-tetrafluoroethylene
Y
- Y
- axe longitudinal
Z
- Z
- axe vertical
- Z
- Zulu [time] (equivalent to UTC)
- ZFW
- zero fuel weight
Symbols
- Å
- Angstrom
- λ
- lambda (wavelength)
- µm
- micrometre(s)
- ø
- phase
- π
- pi (3.1416)
- ′
- minute(s)
- ″
- second(s)
- °
- degree(s)
