Glossary/A

MH370 DECODED
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This index uses the Phonetic (spoken) Alphabet.

Alpha Bravo Charlie Delta Echo Foxtrot Golf Hotel India Juliet Kilo Lima Mike November Oscar Papa Quebec Romeo Sierra Tango Uniform Victor Whiskey X-ray Yankee Zulu


A

AAIB
Air Accident Investigation Bureau (Malaysia) or Air Accident Investigation Branch (United Kingdom)
AAID
Aircraft Accident Investigation Department (China)
AAT
Advanced Air Traffic Systems (M) Sdn. Bhd. - radar maintenance contractor for DCA (Malaysia)
ACARS
Aircraft Communication and Reporting System
AC
Alternating Current
ACC
Area Control Centre (or Air Traffic Control Centre)
ACD
Airways Clearance Delivery (Air Traffic Control at KLIA)
ACE
Actuator Control Electronic
ACK
Acknowledge, meaning "Let me know that you have received and understood this message". (Source: FAA)
ACMP
Alternating Current Motor Pump
ACMS
Aircraft Condition Monitoring System
AC/REG
Aircraft Registration
AD
Airworthiness Directive
An AD is a notification to owners and operators of certified aircraft that a known safety deficiency with a particular model of aircraft, engine, avionics or other system exists and must be corrected. It is mandatory in nature. Source: Safety Investigation Report MH370/01/2018
ADF
Automatic Direction Finder
ADI
Attitude Director Indicator
ADIRS
Air Data Inertial Reference System
ADIRU
Air Data Inertial Reference Unit
ADP
Air Driven Pump (ADP)
ADS-B
Automatic Dependent Surveillance-Broadcast
ADS-C
Automatic Dependent Surveillance-Contract
AEROTHAI
AEROTHAI is the air navigation service provider responsible for the provision of Air Traffic Services within the Bangkok Flight Information Region (FIR)
AES
Airborne Earth Station
AFD
Assistant Flight Data


AFDC
Autopilot Flight Director Computer


AFDS
Autopilot Flight Director System
AFP
Australian Federal Police.
AFTN
Aeronautical Fixed Telecommunication Network
AIMS
Airplane Information Management System
AIP
Aeronautical Information Publication
ARCC
Aeronautical Rescue Coordination Centre
AWL
Airworthiness Limitations
AWLs are items that the Certificate process has defined as critical from a fatigue or damage tolerance assessment. Source:

Safety Investigation Report MH370/01/2018


AIS
Aeronautical Information Service
ALERFA
Alert Phase
Alert phase
Alert phase - A situation wherein apprehension exists as to the safety of an aircraft or marine vessel and of the persons on board.
ALT
Altitude
AMSA
Australian Maritime Safety Authority
AMU
Audio Management Unit


AN 9M-MRO
Aircraft Number (Registration) 9M-MRO
Annex 13
Annex 13 of the Convention on International Civil Aviation (Chicago, 1944) provides the international Standards and Recommended Practices for Aircraft Accident Inquiries and was developed by ICAO. These practices are the basis for aviation accident, serious incident and incident investigations, accident prevention and accident and serious incident reporting. (Source: ATSB)
APAC
ICAO Asia and Pacific Office
API
Advance Passenger Information See also Passenger Name Record
APU
Auxiliary Power Unit
APUC
Auxiliary Power Unit Controller
AR
Approach Radar (Air Traffic Control at KLIA)
ARs
Accredited Representatives (Members of the Annex 13 Investigation Team)
ARINC
Aeronautical Incorporated
ARINC 629
(ARINC) 629
Aeronautical Radio, Incorporated (ARINC) 629 is an aeronautical standard which specifies multi- transmitter data bus protocol where up to 128 units can share the same bus.


ASCPC
Air Supply Cabin Pressure Controller
ASEAN
Association of Southeast Asian Nations
ATC
Air Traffic Control
ATCC
Air Traffic Control Centre
ATS
Air Traffic Services
ATSCs
ATSC
Air Traffic Services Centre
ATSB
Australia Transport Safety Bureau
ATTC
Aircraft Tracking Task Force
AUV
An autonomous underwater vehicle (AUV) is a battery-powered self-propelled underwater vehicle that can be launched and retrieved from a search vessel and is pre-programmed with a search mission. The vehicle may be fitted with instruments including sonar and optical imaging systems. (Source: ATSB)