Glossary

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

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IFSD

Definition
In-flight Shutdown
Glossary Safety Source: ICAO

IG

Definition
Implementation Group
Glossary Organisation

IGA

Definition
International general aviation
Glossary Organisation

ILS

Definition
Instrument Landing System
Glossary Instrument flight rules Flight planning Source: AIPICAO

IM

Definition
Inner Marker
Glossary Navigation Source: AIS

IMC

Definition
Instrument meteorological conditions (other than VMC)
Glossary Meteorology Source: AIS

IMC

Definition
Indirect Maintenance Cost
Glossary Airworthiness Source: CAR 1988

IMI

Definition
Interrogation sign
Glossary Communication Source: AIS

IMPR

Definition
Improve, Improving, Improvement
Glossary Safety Source: ICAO

IMT

Definition
Immediate, Immediately
Glossary Measurement Source: AIS

INA

Definition
Initial approach
Glossary Navigation Source: AIS

INBD

Definition
Inbound
Glossary Flight planning Source: ICAO

INC

Definition
In Cloud
Glossary Meteorology Source: AIS

INCERFA

Definition
Uncertainty Phase
Glossary Safety Source: AIS

INFO

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