Maintenance Abbreviations

Lists of abbreviations that pertain to our job

A-I

Anti-Ice

A/D

Analog-to-Digital

A/I PRS

Anti-ice Valve Pressure Switch

A/I SOL

Anti-ice Valve Solenoid

A/S

Airspeed

AAA

Anti-Aircraft Artillery

AAG

Aircraft Adapter Group

ABC

Analog Backup Computer

ABCV

Aircraft Bleed Control Valve

ABDR

Aircraft Battle Damage Repair

ABE

Advanced Boresight Equipment

ABIU

Avionics Bay Interface Unit

ABS

Absolute

AC

Alternating Current

ACC

Accept

ACK

Acknowledge

ACLCP

Aft Cabin Lighting Control Panel

ACM (1)

Actuator Control Module

ACM (2)

Air Cycle Machine

ACM (3)

Aircraft Characterization Module

ACSUBS

Aircraft Subsystems

ACT

Actuator

ADA

Air Defense Artillery

ADB

Aircraft Discrepancy Book

ADF

Automatic Direction Finder

ADI

Attitude Direction Indicator

ADJ

Adjust

ADM

Air Data Module

ADS

Air Data System

ADTS

Air Data Test Set

ADU

Air Data Unit

AEO

All Engines Operation

AERPS

Aircrew Eye and Respiratory Protection System

AESR

Aeronautical Equipment Service Record

AEU

Antenna Electronic Unit

AFA

Audio Frequency Amplifier

AFCS

Automatic Flight Control System

AGB (1)

Accessory Drive Gearbox

AGB (2)

Accessory Gearbox

AGL

Above Ground Level

AGR

Air-to-Ground Ranging

AGVIB

Accessory Gearbox Vibration Sensor

AHD

Ahead

AIH

Air Inlet Housing

AJ

Anti-Jam

ALE

Automatic Link Establishment

ALO

Air Launched Establishment

ALT

Altitude

ALU

Antenna Logic Unit

AM

Amplitude Modulation

AMC

Advanced Mission Computer

AMEGS

Aircraft Maintenance Event Ground Station

AMLCD

Active Matrix Liquid Crystal Display

AMO/MMCO

Assistant Maintenance Officer/Maintenance Material Control Officer

ANDVT

Advanced Narrow Band Digital Voice Terminal

ANT

Antenna

ANVIS

Aviation Night Vision Imaging System

AOA

Angle of Attack

APPR

Approach

APU

Auxiliary Power Unit

ARE

Automatic Responsivity Equalization

ARINC

Aeronautical Radio, Inc.

ARRP

Aerial Retractable Refuel Probe

ASCM

Authorized Software Configuration Matrix

ASG

ADA Structure Graph

ASK

Amplitude Shift Keyed

ASM

Actuator Signal Management

ASR

Assembly Service Record

ASSY

Assembly

ATC

Air Traffic Control

ATE

Automatic Test Equipment

ATF

Automatic Transmission Fluid

ATHS

Automatic Target Hand-off System

ATP

Acceptance Test Procedures

ATR

Aircraft Transport Radio

ATT

Attitude

AU

Airborne Unit

AUT

Aircraft Under Test

AV

Avionics

AVSS

Active Vibration Suppression System

AWT

Automatic Wiring Test

AWTS

Automatic Wiring Test Set

AZ

Azimuth

BALT

Barometric Altitude

BATH

Best Available True Heading

BATS

Bladefold Actuator Test System

BATT

Battery

BC

Back Course

BCN

Beacon

BDD

Blade Deice DIstributor

BDU

Built-In Test Display Unit

BFWS

Bladefold/Wing Stow

BHBA

Backup Hydraulic Brake Assembly

BHBA

Backup Hydraulic Power Drive Unit

BIS

Built-In Simulation

BIT

Built-In-Test

BITE

Built-In Test Equipment

BL

Buttock (BUTT) Line

BLK

Black

BLOS

Beyond Line Of Sight