CulturAiles.com - Nice to know -

The human operator, the least reliable element of an aerodyne, but the most essential...!
Frank Caron (1991)

Last update:
10 January 2012

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1996-2012
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Nice to know - Boeing 737 abbreviations and acronyms

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A/P	Autopilot
A/T	Auto-Throttle
ABP	Able Bodied Passenger
AC	Alternate Current
ACARS	Aircraft Communications And Reporting System
ACM	Air Cycle Machine
ACP	Audio Control Panel
ACPCS	Analog Cabin Pressure Control System
ACT	ACTive
AD	Airworthiness Directive
ADC	Air Data Computer
ADF	Automatic Direction Finding
ADI	Attitude Director Indicator
ADIRS	Air Data Inertial Reference System
ADIRU	Air Data Inertial Reference Unit
ADM	Air Data Module
AED	Automatic External Defibrillator
AFCS	Auto-pilot Flight Computer System
AFCU	Aux Fuel Control Unit
AFDC	Auto-pilot Flight Director Computer
AFDS	Auto-pilot Flight Director System
AFM	Airplane Flight Manual
AGL	Above Ground Level
AI	Anti-Ice
AIL	AILeron
ALLS	Alternate Landing Light System
ALT	ALTitude
ALT ACQ	Altitude Acquisition
ALTN	ALTerNate
ALT-INTV	ALTitude INTerVention
AM	Amplitude Modulation
ANP	Actual Navigation Performance
ANS	Alternate Navigation System
ANT	Antenna
AOA	Angle Of Attack
APP	APProach
APU	Auxialiary Power Unit
ARINC	Aeronautical Radio INCorporated (Specification), American Radio INCorporation
ARPT	Airport
ASCB	Aircraft Standard Communication Bus
ASP	Audio Selector Panel
ATA	Actual Time of Arrival Air Transport Association
ATC	Air Traffic Control
ATM	Available Ton-Mile Assumed Temperature Method
ATT	Attitude
AUTO	AUTOmatic
AUX	Auxialiary
AVAIL	AVAILable
AVM	Airborne Monitoring Vibration System
AVSA	Adjust Vertical Speed Adjust (TCAS)
AWO	All Weather Operations
BAC or B/CRS or BCS or B/C	BAck Course
BARO	BAROmetric
BITE	Built-In Test Equipment
BPCU	Bus Power Control Unit
BPP	Bus Protection Panel
BRT	Bright
BTB	Bus Tie Breaker
BTL DISCH	BoTtle DISCHarge
BTMS	Brake Temperature Monitor System
BYDU	Back Up Yaw Damper Unit
B/C	Back Course
C	Celsius Captain Center
CADC	Central Air Data Computer
CANC/RCL	CANCel/ReCaL
CAPT	Captain
CAS	Calibrated Airspeed
CAT I	landing CATegory 1
CAT II	landing CATegory 2
CAT III	landing CATegory 3
CB	Circuit Breaker
CCDL	Cross Channel DataLink
CCU	Central Control Unit
CDS	Control or Common Display System
CDU	Control Display Unit
CEU	Cargo Electronic Unit
CFP	Cargo Fire Panel
CG	Center of Gravity
CHKL	CHecK-List
CI	Cost Index
CLB	CLimB
CLB 1	derate CLimB 1
CLB 2	derate CLimB 2
COMM	COMMunication
CON	CONtinuous
CONFIG	CONFIGuration
CPCS	Cabin Pressure Control System
CRS	Course
CRZ	CRuise
CSD	Constant Speed Drive
CTL	ConTroL
CVR	Cockpit Voice Recorder
CWS	Control Wheel Steering
DAR	Direct Access recorder
DATIS	Digital Automatic Terminal Information Service
DC	Direct Current
DCMF	Data Communications Management Function
DCPCS	Digital Cabin Pressure Control System
DDG	Dispatch Deviation Guide
DEP ARR	DEParture ARRival
DES	DEScent
DEU	Dispaly Electronic Unit
DFCS	Digital Flight Control System
DFDAU	Digital Flight Data Acquisition Unit
DFDR	Digital Flight Data Recorder
DISC	DISConnect
DME	Distance Measuring Equipment
DSP	Display Select Panel
DSPL	Display
DU	Display Unit
DYDC	Digital Yaw Damper Computer
DZTC	(Ratheon) Dual Zone Temperature Control system
D-TO	assumeD temperature reduced TakeOff
D-TO 1	Derate 1 & assumed temperature reduced TakeOff
D-TO 2	Derate 2 & assumed temperature reduced TakeOff
E/D	End of Descent
E/E or EE	Electrical and Electronic
EADI	Electronic Attitude Director Indicator
EAI	Engine Anti Ice
ECS or EES	Environmental Control System
EDG	Engine Driven Generator
EDP	Engine Driven Pump
EE or E/E	Electrical and Electronic
EEC	Electronic Engine Control
EES or ECS	Environmental Control System
EFC	Elevator Feel Computer
EFCU	Elevator Feel and Centering Unit
EFIS	Electronic Flight Instrument System
EFS	Elevator Feel Shift
EGPWS	Enhanced Ground Proximity Warning System
EGT	Exhaust Gas Temperature
EHSI	Electronic Horizontal Situational Indicator
EICAS	Electronic Centralized Aircraft System
ELEC	Electrical
ELEV	Elevator
EMDP	Electric Motor-Driven Pump
EMER	Emergency
ENG	ENGine
EO	Engine Out
EPC	External Power Contactor
EPR	Engine Pressure Ratio
ETOP	Extended Range OperationS
EVAC	Evacuation
EXEC	Execute
EXT	Extend
F	Farenheit
F/D or FD or FLT DIR	Flight Director
F/O	First Officer
FAC	Final Approach Course
FADEC	Full Authority Digital Engine Control
FAF	Final Appoach Fix
FACF	Final Approach Course Fix
FCC	Flight Control Computer
FCOM	Flight Crew Operations Manual
FCPC or PRIM	Flight Control Primary Computers
FCSC or SEC	Flight Control Secondary Computers
FCTL	Flight ConTroL
FCU	Flight Control Unit
FD or F/D or FLT DIR	Flight Director
FDAU	Flight Data Acquisition Unit
FDIU	flight Data Interface Unit
FDR	Flight Data recorder
FEAR	Feel (Elevator Feel Unit), Elevator, Aileron, Rudder
FFM	Force Fight Monitor
FMA	Flight Mode Annunciations
FMC	Flight Management Computer
FMGC	Flight Management Guidance Control
FMCS	Flight Management Control System
FMCU	Flight Management Computer Unit
FMF	Flight Management Function
FMGEC	Flight Management Guidance and Envelope Computers
FMGES	Flight Management Guidance and Envelope System
FMS	Flight Management System
FOCA	Flight Operations Quality Assurance
FOD	Foreign Object Damage
FPA	Flight Path Angle
FPM	Feet per Minute
FPV	Flight Path Vector
FRA	Flaps Retraction Altitude
FREQ	Frequency
FSEU	Flaps/Slats Electronic Unit
FT	Functional Test Foot/Feet
FTE	Flight Technical Error
FWD	ForWarD
GA or G/A	Go-Around
G/P	Glide Path
G/S	Glide Slope
GB	Generator Breaker
GCB	Generator Circuit or Control Breakers
GCR	Generator Control Relay
GCU	Generator Control Unit
GEN	Generator
GLS	GPS Landing System GNSS Landing System
GPS	Global Positioning System
GPU	Ground Power Unit
GPWS	Ground Proximity Warning System
GS	Ground Speed
HDG	Heading
HDG REF	HeaDinG REFerence
HDG SEL	HeaDinG SELect
HF	High Frequency
HGS	Head-up Guidance System
HMU	Hydro-Mechanical Unit
HP	High Pressure
HPA	HectoPAscals
HPSOV	(fuel) High-Pressure ShutOff Valve
HSI	Horizontal Situation Indicator
HSMU	Hydraulic System Monitoring Unit
HUD	Head Up Display
HYD	Hydraulic
IAN	Integrated Approach Navigation
IAR	Immediate Adopted Rule
IAS	Indicated Airspeed
IATA	International Air Transport Association
ICAO	International Civil Aviation Organization
IDENT	IDENTification
IDG	Integrated Drive Generator
IFE or IFES	In-Flight Entertainment System
IGN	Ignition
IGV	Inlet Guide Valves
ILS	Instrument Landing System
IN	INches
INBD	INBoard
IND LTS	INDicator LighTS
INOP	Inoperative
INT or INTPH	Interphone
INTC CRS	INTerCept CouRSe
IRS	Inertial Reference System
ISDU (IRS)	System Display Unit (IRS)
IRU	Inertial Reference Unit
ISFD	Integrated Standby Flight Display
ISLN	ISoLatioN
IVSI	Instantaneous Vertical Speed Indicator

JAA	Joint Aviation Authority
JAR	Joint Aviation Regulation
K or KTS	Knots
KG or KGS	KiloGramS
KIAS	Knots Indicated Airspeed
L	Left
LAF	Load Alleviation Function
LBS	Pounds
LCD	Liquid Crystal Display
LCO	(Elevator Tab) Limit Cycle Oscillation
LDA	Localizer type Directional Aid
LDW	LanDing Weight
LE	Leading Edge (flaps and slats)
LED	Light Emitting Diodes Leading Edge Devices
LEF	Leading Edge Flaps
LES	Leading Edge Slats
LDG ALT	LanDinG ALTitude
LGSV	Landing Gear Selector Valve
LGTU	Landing Gear Transfer Unit
LGTV	Landing Gear Transfer Valve
LIM	LIMit
LNAV	Lateral NAVigation
LOC	Localizer
LP	Low Pressure
LRNS	Long-Range Navigation System
LRU	Line Replaceable Unit
LSK	Line Select Key
LWR CTR	LoWeR CenTeR
LWR DSPL	LoWeR DiSPLay
L/OP	Limitation(s) and/or Operating Parameter
M	Mach
MA	MAster
MAG	MAGnetic
MAN	MANual
MASI	Mach / AirSpeed Indicator
MCDU	Multipurpose Control and Display Units
MCP	Mode Control Panel
MCU	Mode Control Unit
MDA	Minimum Descent Altitude
MEC	Main Engine Control
MEL	Minimum Equipment List
MFD	Multifunction Display
MHZ	Megaherz
MIC	Microphone
MIN	MINimum
MKR	Marker
MLW	Maximum Landing Weight
MMO	Maximum Mach Operating Speed
MNPS	Minimum Navigation Performance Specification
MMR	(GPS) Multi-Mode Receiver
MOD	MODify
MRTW or RTOW	Maximum Runway Take Off Weight
MSG	Message
MSU	Mode Selector Unit (IRS)
MTOW	Maximum TakeOff Weight
MTRS	MeTeRS
MUH	Minimum Use Height
NAV RAD	NAVigation RADio
ND	Navigation Dispaly
NG	Next Generation (737 séries 6-7-8-900, BBJ1 or BBJ2)
NM	Nautical Miles
NORM	NORMal
NOTOC	NOtification TO Captain
NPS	Navigation Performance Scales
NWS	Nose Wheel Steering
N1	Low Pressure Rotor (Fan) Speed
N2	High Pressure (Core) Speed
OAT	Outside Air Temperature (Ground)
OATL	Outside Air Temperature Limit
OBRM	On-Board replaceable Modules
OCA	Oceanic Control Area
OEV	Overboard Exhaust Valve
OFST	Offset
OHU	OverHead Unit
OUTBD DSPL	OUTBoarD DiSPLay
OVHD	OVerHeaD
OVHT	OVerHeaT
OVRD	OVeRriDe
OXY or O2	Oxygen
PA	Passenger Address
PACK	Pressure & Air Conditioning Kit
PASS or PAX	Passengers
PBE	Protective Breathing Equipment
PCA	Predictive Caution Alert
PCU	Power Control Unit
PDC	Pre-Departure Clearance
PERF INIT	PERFormance INITialisation
PF	Pilot Flying
PFC	Primary Flight Computers
PFD	Primary Flight Display
PLI	Pitch Limit Indicator
PM	Pilot Monitoring
PMC	Power Management Computer Power Management Control
PMG	Permanent Magnet Generator
PNF	Pilot Non Flying
PNL	PaNeL
POB	Portable Oxygen Bottles
POS	POSition
POS INIT	POSition INITialisation
PPOS	Present POSition
PREV	Previous
PRI or PRIM	PRImary
PRIM or FCPC	Flight Control Primary Computers PRImary
PROX	Proximity
PRSOV	Pressure Regulator and Shutoff Valve
PSEU	Proximity Switch Electronic Unit
PSI	Pounds per Square Inch
PSU	Passenger Service Unit (/O2 mask)
PTH	Path
PTLU	Pedal Travel Limitation Unit
PTT	Push To Talk
PTU	Power Transfer Unit
PWA	Predictive Windshear Alert
PWR	Power
PWS	Predictive Windshear System
QAR	Quick Access recorder
Q-CLB	Quiet CLimB
QRH	Quick Reference Handbook
R	Right
R/A or RA	Radio Altimeter Radio Altitude
R-CLB	Reduced CLimB
R-TO	Reduced TakeOff
RA	Radio Altimeter Radio Altitude Resolution Advisory (TCAS)
RCCB	Remote Control Circuit Breaker
RDMI	Radio Magnetic Data Indicator
REC	Recorder
RECIR or RECIRC	ReCIRCulation
REF	Reference
RET	RETurn RETract
REU	Remote Electronic Unit
REV	REVerser
RF	ReFill
RFCU	Rudder Feel and Centering Unit
RMLG	Right Main Landing Gear
RMP	Radio Management Panel
RNP	Required Navigation Performance
RPM	Revolution Per Minute
RPR	Rudder Pressure Reducer
RST	Reset
RTA	Required Time of Arrival
RTE	Route
RTO	Rejected TakeOff
RTOW or MRTW	Maximum Runway Take Off Weight
RTP	Radio Tuning Panel
RUD	Rudder
RVSM	Reduced Vertical Separation Minimums
SAT	Static Air Temperature
S/C	Step Climb
SCU	Suppression Control Unit
SDF	Simplified Directional Facility
SEC or FCSC	Flight Control Secondary Computers
SEL	SELect
SELCAL	SELective CALling
SFCC	Slat/Flap Control Computers
SMGCS	Surface Movement Guidance Control Sytem
SMYD	Stall Management Yaw Damper
SMYDC	Stall Management Yaw Damper Computer
SOV	ShutOff Valve
SPCU	Stanby Power Control Unit
SPD	Speed
SPD INTV	Speed Intervention
SPD REST	Speed Reset
STA	Station
STAB	STABilizer
STAT	Status
STBY	Standby
STD	STandarD
STS	Speed Trim System
STS or STAT	Status
SVC	Service
SYS	System
T or TRU	TRUe
T or TK or TRK	Track
T/C	Top of Climb
T/D	Top of Descent
T/R or THR REV	Thrust Reverser
TA	Traffic Advisory
TAI	Thermal Anti Ice
TAS	True Airspeed
TAT	Total Air Temperature (Airborne)
TCAS	Traffic Alert and Collision Avoidance System
TDZE	Touch Down Zone Elevation
TE	Trailing Edge (flaps)
TEMP	Temperature
TERR	Terrain
TFC	Traffic
TFR	Transfer
THR HOLD	THRottle HOLD
TLA	Thrust Lever Angle
TLU	Travel Limitation Unit
TMD	Thrust Mode Display
TO	Take-Off Full power takeoff
TO-B	TakeOff thrust Bumb
TO-1	derate TakeOff 1
TO-2	derate TakeOff 2
TO/GA or TOGA1	Take Off/Go-Around
TOGA2	N1 climb limit
TOW	TakeOff Weight
TPS	Take off Performance System
TR	Transformer Rectifier
TRC	Thrust Rating Computer
TRU	Transformer Rectifier Unit
UNLKD	Unlocked
UPR DSPL	UPpeR DiSPLay
USB	Upper Side Band
UTC	Universal Time Coordinated
V/B	Vertical Bearing
V/S	Vertical Speed
V1	Take off Decision Speed
V2	Scheduled Take off Target Speed
VA	Design Maneuvering Speed
VANP	Vertical Actual Navigation Performance
VBV	Variable Bleed Vanes
VERT	Vertical
VHF	Very High Frequency
VMO	Maximum Operating Speed
VNAV	Vertical NAVigation
VOR	Very High Frequency Omnidirectional Range
VR	Rotation Speed
VREF	REFerence Speed
VRNP	Vertical Required Navigation Performqnce
VSCF	Variable Speed Constant Frequency
VSD	Vertical Situation Display
VSI	Vertical Speed Indicator
VSPD	Vertical SPeeD
VSV	Variable Stator Vanes
VTK	Vertical Track
WAH	When Able Higher
WAI	Wing Anti Ice
WPT	Waypoint
WTRIS	Wheel To Rudder Interconnect System
WXR	Weather Radar
W/S	Warning System
XTK	Cross Track
X-BLD	Cross BLeeD start
XPDR or XNPDR	Transponder
Y/D	Yaw Damper
ZFW	Zero Fuel Weight

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