Factual Information 2015:TOC/Abbreviations
This page contains an extract from MH370/01/15 Factual Information which accompanied the (first) Interim Statement released by The Malaysian ICAO Annex 13 Safety Investigation Team for MH370 on 8th March 2015.
ABBREVIATIONS and CODES
A
A/P Autopilot
A/T Autothrottle
AAIB Air Accident Investigation Branch (United Kingdom)
AAIB Air Accident Investigation Bureau (Singapore)
AC Alternating Current
ACARS Aircraft Communications Addressing and Reporting System
ACC Area Control Centre
ACD Airways Clearance Delivery
ACE Actuator Control Electronic
ACIPS Air foil Cowl Ice Protection System
ACMS Aircraft Condition Monitoring System
ACP Audio Control Panel
ADF Automatic Direction Finder
ADI Attitude Director Indicator
ADIRS Air Data Inertial Reference System
ADIRU Air Data Inertial Reference Unit
ADP Air Driven Pump
ADS-B Automatic Dependent Surveillance-Broadcast
ADS-C Automatic Dependent Surveillance-Contract
AES Aircraft Earth Station
AFD Assistant Flight Data
AFDS Autoflight Director System
AFTN Aeronautical Fixed Telecommunication Network
AIMS Airplane Information Management System
AIP Aeronautical Information Publication
AIS Aeronautical Information Service
ALR Alerting
ALT Altitude
AM Amplitude Modification
AMU Audio Management Unit
AN Aircraft Number; Airworthiness Notice
AOA Angle of Attack
AOC Air Operator’s Certificate
APP Approach
APU Auxiliary Power Unit
APUC Auxiliary Power Unit Controller
ARINC Aeronautical Incorporated
ASB Amanah Saham Bumiputra (A Government-back Trust Fund)
ASN Amanah Saham Nasional (A Government-back Trust Fund)
ASCPC Air Supply Cabin Pressure Controller
ATC Air Traffic Control
ATCC Air Traffic Control Centre
ATPL Air Traffic Pilot Licence
ATS Air Traffic Services
ATSB Australian Transport Safety Bureau
ATSC Air Traffic Services Centre
ATM Air Traffic Management
ATSU Air Traffic Service Unit
ATTN Attenuator
AUTO Automatic
AVBL Available
AWL Airworthiness Limitation
B
BEA Bureau d'Enquêtes et d'Analyses pour la Sécurité de l'Aviation civile (France)
BEW Basic Empty Weight
BFO Burst Frequency Offset
BITE Built In Test Equipment
BSCU Brake System Control Unit
BSU Beam Steering Unit
BTO Burst Timing Offset
C
C Degree Celsius (Centigrade)
C of A Certificate of Airworthiness
C of G Centre of Gravity
C of R Certificate of Registration
CA Collective Agreement
CAAC Civil Aviation Administration China
CAAS Civil Aviation Authority Singapore
CAM Cockpit Area Microphone
CAT Clear Air Turbulence
CCD Cursor Control Device
CDU Control Display Unit
CHIRPS Confidential Human Factors Accident Incident Reporting System
CLB Climb
Cm Centimetre
CMCS Central Maintenance Computing System
CMR Certificate Maintenance Requirement
CMS Central Maintenance System
COSPAS Space System for Search of Vessels in Distress
CPDLC Controller Pilot Data Link Communications
CPL Commercial Pilot Licence
CPM Core Processor Module
CPMU Cabin Passenger Management Unit
CRM Crew Resource Management
CRZ Cruise
CTR Control Zone
CTRL Control
CTU Cabin Telecommunications Unit
CVR Cockpit Voice Recorder
CX C Extended
CWP Controller Working Position
D
dB decibel
DC Direct Current
DCA Department of Civil Aviation
DCGF Data Conversion Gateway Function
DCMF Data Communication Management Function
DCMS Data Communication Management System
Deg Degree
DEOR Daily Engineering Operations Report
DES Descent
DFDAF Digital Flight Data Acquisition Function
DFDAU Digital Flight Data Acquisition Unit
DIP Diplexer
DLNA Diplexer Low Noise Amplifier
DME Distance Measuring Equipment
DOW Dry Operating Weight
E
ECL Electronic Checklist
EDIU Engine Data Interface Unit
EDP Engine Driven Pump
EEC Electronic Engine Control
EFIS Electronic Flight Instrument System
EFS Electronic Flight Strips
EHM Engine Health Monitoring
EICAS Engine Indicating and Crew Alerting System
ELMS Electrical Load Management System
ELT Emergency Locator Transmitter
EMS Engineering Maintenance System
ENR En-route
EPR Engine Pressure Ratio
EST Estimate
ETA Estimated Time of Arrival
ETOPS Extended Twin Engine Operations
EXT External
F
FO First Officer
FAA Federal Aviation Administration
FAR Federal Aviation Regulations
FDP Flight Data Processing
FDR Flight Data Recorder
FPL Filed Flight Plan (message type designator)
FIR Flight Information Region
FL Flight Level
FLCH Flight Level Change
FMCF Flight Management Control Function
FMCS Flight Management Control System
FMS Flight Management System
FO Flight Officer
FPA Flight Path Angle
FSCU Flap Slat Control Unit
FSEU Flap Slat Electronic Unit
FS Flight Steward
FSS Flight Stewardess
FT Feet (dimensional unit)
G
G/S Glide Slope
GA Go Around
GADSS Global Aeronautical Distress and Safety System
GCC Golden Class Club
GEN Generator
GES Ground Earth Station
GHz Giga Hertz
GPS Global Positioning System
GPWS Ground Proximity Warning System
GSP Ground Service Provider
GWT Gross Weight
H
hPa Hectopascal
HDG Heading
HF High Frequency
HF/AMSS High Frequency Aeronautical Mobile Service Station
HGA High Gain Antenna
HLCS High Lift Control System
HPA High Power Amplifier
HR Hours
HYDIM Hydraulic Interface Module
Hz Hertz
I
i.u. index unit
IAMSAR International Maritime Search and Rescue
IAS Indicated Airspeed
IATA International Air Transport Association
ICAO International Civil Aviation Organisation
ID Identification
IDG Integrated Drive Generator
IFE In-flight Entertainment
IFS In-flight Supervisor
IGV Inlet Guide Vane
ILS Instrument Landing System
In. Inches
INCERFA Uncertainty Phase
IOM Input/output Module
IOR Indian Oceanic Region
IRP Integrated Refuel Panel
ISLN Isolation
K
KHz Kilo Hertz
KLIA KL International Airport
Kg Kilogram
Kt Knot
KVA Kilo Volt Ampere
L
LAME Licenced Aircraft Maintenance Engineer
LAT Latitude
lb. Pound
LDW Landing Weight
LGA Low Gain Antenna
LH Left Hand
LLAR Lower Lobe Attendant Rest
LNA Low Noise Amplifier
LNAV Lateral Navigation
LOA Letters of Agreement
LOC Localiser
LONG Longitude
LOPA Lay Out of Passenger Accommodation
LRU Line Replaceable Unit
LS Leading Steward
M
M Metre
MAC Mean Aerodynamic Chord
MARA Majlis Amanah Rakyat (An agency of the Government)
MAS Malaysia Airlines
MATS Manual of Air Traffic Services
MET Meteorological or meteorology
MCC Maintenance Control Centre
MCDU Multi-purpose Control Display Unit
MCP Mode Control Panel
MEC Main Equipment Centre
MEL Minimum Equipment List
MFD Multi-Function Display
MGSCU Main Gear Steering Control Unit
MHz Megahertz
Min Minute
MOR Mandatory Occurrence Report
MPD Maintenance Planning Document
MR1 Maintenance Report 1
MR2 Maintenance Report 2
MRB Maintenance Review Board
ms meter second
MTSAT Multifunctional Transport Satellites of Japan Meteorological Agency (JMA)
MU Management Unit
MYT Malaysian Time
N
ND Navigation Display
NDB Non-directional Beacon
NM Nautical Mile
NOTAM Notices to Airmen
NOTOC Notice to Crew
NTC Notes to Crew
NTSB National Transportation Safety Board
NTSC National Transportation Safety Committee (Indonesia)
O
OCC Operations Control Centre
OCXO Oven Controlled Crystal Oscillator
OPR Operator
OPS Operations
OOOI Out, Off, On, In
P
P/N Part Number
PASS Passenger(s)
PDS Primary Display System
PDU Power Drive Unit
PFCS Primary Flight Control System
PFD Primary Flight Display
PIC Pilot in Command
PLN Flight Plan
PMG Permanent Magnet Generator
POB Person on Board
POR Pacific Oceanic Region
PSA Power Supply Assembly
PSEU Proximity Switch Electronic Unit
psi pounds per square inch
PSR Primary Surveillance Radar
PSU Passenger Service Unit
PTT Push to Talk
PWR Power
PWS Predictive Windshear
Q
Q & A Questions and Answers
QAE Quality Assurance Engineer
R
RAT Ram Air Turbine
REF Reference
RF Radio Frequency
RFS Radio Frequency Splitter
RFU Radio Frequency U nit
RH Right Hand
rms Root Mean Square
RTP Radio Tuning Panel
RVSM Reduced Vertical Separation Margin
RQS Request Supplementary Flight Plan
RADAR Radio Detection and Range
RCC Rescue Coordination Centre
RDP Radar Data Processor
RSC Rescue Sub-Centre
RNAV Area Navigation
RWY Runway
S
SAP Safety Awareness Programme
SAR Search and Rescue
SATCOM Satellite Communications
SC Search and Rescue Coordinator
SEA 1 South East Asia 1
SEA 2 South East Asia 2
SELCAL Selective Calling System
SIGMET Significant meteorological information
SIGWX Significant weather chart
SMC Search and Rescue Mission Coordinator
SOI Supplementary Operations Instructions
SRR Search and Rescue Region
SSR Secondary Surveillance Radar
T
T Tonne
TAT Total Air Temperature
TCAS Traffic Collision Avoidance System
THDG True Heading
TMA Terminal Control Area
TH True Heading
THR Thrust
TMCF Thrust Management Control Function
TO Take-off
TRE Type Rating Examiner
TRI Type Rating Instructor
TRK Track
TRTO Type Rating Training Organization
TRU Transformer Rectifier Unit
TSO Technical Standard Order
U
UHF Ultra High Frequency
ULB Underwater Locating Beacon
USB Upper Side Band
UTC Universal Time Coordinated
V
V Volt
V/S Vertical Speed
VAAC Very High Frequency
VNAV Vertical Navigation
VOR Very High Frequency Omni Directional Range
W
W Watt
WHCU Window Heat Control Unit
WINDIR Wind Direction
WINDSP Wind Speed
WMKC ICAO 4-letter location indicator for Kota Bharu Airport (used in AFTN messages)
WMKK ICAO 4-letter location indicator for Kuala Lumpur International Airport
WMKN ICAO 4-letter location indicator for Kuala Terengganu Airport
WMKP ICAO 4-letter location indicator for Penang International Airport
WWW Worldwide web
WXR/WX Weather
Z
ZBAA ICAO 4-letter location indicator for Peking-Capital International Airport
ZFW Zero Fuel Weight
Z Coordinated Universal Time (in meteorological messages)
Many of the abbreviations listed here have been incorporated into the Tooltips used in this website.
Tooltips are the meanings for words, acronyms and abbreviations. These are shown by moving a cursor or pointer over any word or phrase which is faintly underlined.
For example, see the meaning of ACARS.
See also the site Glossary.
Source: Malaysian ICAO Annex 13 Safety Investigation Team for MH370, 8 March 2015, Factual Information MH370/01/15
The Factual Information was updated in 2018 by the Safety Investigation Report MH370/01/2018 which added new content but did not include all of the previous data.