ABBREVIATIONS
The following abbreviations may be used by cockpit displays, radio tuning units and flight
management system or be found throughout the manual. Some abbreviations may also appear in
lower case letters. Abbreviations having very limited usage are explained in the systems chapters
where they are used.
A
A/C
Air Conditioning
A/G
Air/Ground
A/ICE
Anti-ice
A/P
Autopilot
A/S
Airspeed
A/SKID
Anti-skid
ABS
Absolute
AC
Alternating Current
ACARS
ARINC Communications
Addressing and Reporting
System
ACSC
Air Conditioning System
Controller
ACCEL
Acceleration, accelerate(d),
accelerometers
ACM
Air Cycle Machine
ACMP
Alternating Current Motor
Pump/Electric Hydraulic
Pump
ACPC
Alternating Current Power
Center
ACT
Active
ACU
Air Conditioning Unit
ACV
Air Control Valve
ADC
Air Data Computer
ADDR
Address
ADF
Automatic Direction Finder
ADI
Attitude Director Indicator
ADS
Air Data System
AFCS
Automatic Flight Control
System
AFT
Aftward
AGL
Above Ground Level
AHC
Attitude Heading Computer
AIL
Aileron
ALIGN
Aligning, alignment
ALPHA
alpha
ALT
Altitude, Altimeter
ALT
Altitude Hold (PFD/FD)
ALT CAP
Altitude Capture (PFD/FD)
ALT HOLD
Altitude Hold
ALTN
Alternate
ALTS
Selected Altitude Arm/Abort
(PFD/FD)
AM
Amplitude Modulation
AMB
Ambient
AMP
Amperes
ANNUN
Annunciator
ANT
Antenna
AOA
Angle of Attack
AP
Autopilot
APC
Auxiliary Power Control
APP, APR
Approach
APPROX
Approximately
APU
Auxiliary Power Unit
ARINC
Aeronautical Radio
Incorporated
ARP
Air Data Reference Panel
ASCB
Avionic Standard
Communication Bus
ASYM
Asymmetrical
AT
Auto Throttle
ATA
Air Transport Association
ATC
Air Traffic Control
ATS
Air Turbine Starter
ATT
Attitude
ATTD
Attitude
ATTND
Attendant
AUTO
Automatic
AUTO BAL
Automatic Balance
AUTO XFER
Automatic Transfer
AUX
Auxiliary
AV
Avionics
AVAIL
Available
AZ
Azimuth
AIRPLANE GENERAL
Rev 2A, Apr 11, 2005
Flight Crew Operating Manual
CSP 700−5000−6
Volume 2
01−10−1