Glossary

Look up acronyms, technical terms and phrases to find out what they mean.

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ALA

Definition
Alighting area
Glossary Ground Operations Source: ICAO

ALA

Definition
Aircraft Landing Area
Glossary Aerodrome

ALAEA

Definition
Australian Licensed Aircraft Engineers Association
Glossary Organisation

ALARP

Definition
As Low as Reasonably Practical
Glossary Flight planning Source: AIS

ALERFA

Definition
Alert phase
Glossary Safety Source: AIS

ALI

Definition
Airworthiness Limitation Item
Glossary Airworthiness

ALM

Definition
Aircraft Landing Minima
Glossary Flight planning Source: AIS

ALR

Definition
Alerting Message
Glossary Safety Source: AIS

ALRS or ALS

Definition
Approach lighting system
Glossary Aerodrome Source: AIS

ALT

Definition
Altitude
Glossary Flight planning Source: AIS

ALTN

Definition
Alternate
Glossary Flight planning Aerodrome Source: AIS

ALTN

Definition
Alternating (light alternates in colour)
Glossary Aerodrome Source: AIS

AMA

Definition
Area minimum altitude
Glossary Flight planning Source: ICAO

AMC/GM

Definition
Acceptable Means of Compliance/Guidance Material
Glossary Regulations

AMD

Definition
Amend, Amended
Glossary Communication Meteorology Source: AIS
Online version available at: https://www.casa.gov.au//resources-and-education/glossary
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