Advisory Circulars

Advisory Circulars (AC) give advice and guidance on how to meet the Civil Aviation Safety Regulations (CASR). Each AC explains certain rules or standards in more detail.

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AC 139.C-02 - Aerodrome personnel

Updated:

Advisory Circular AC 139.C-02 has been developed to assist aerodrome operators to identify the various roles and…

Advisory Circular Aerodromes Part 139 of CASR Guidance materials Version
1.1

AC 91-16 - Wake turbulence

Updated:

Advisory Circular AC 91-16 provides foundational information on wake vortex behaviour, alert pilots to the hazards of…

Advisory Circular Flight operations Part 91 of CASR Guidance materials Version
1.2

AC 131-02 - Part 131 Aircraft - operations

Updated:

Advisory circular AC 131-02 provides guidance and acceptable means of compliance on operational matters for operators…

Advisory Circular Flight operations Part 131 of CASR Guidance materials Version
4.0

AC 138-01 - Part 138 core concepts

Updated:

Advisory Circular AC 138-01 provides high level guidance and explanation regarding Part 138 and its core concepts.

Advisory Circular Flight operations Part 138 of CASR Guidance materials Version
3.0

Multi-Part AC 119-07 and AC 138-03 - Management of change for air transport and aerial work operators

Updated:

Advisory Circular AC 119-07 and AC 138-03 - This multi-part AC provides guidance to all persons involved in the…

Advisory Circular Flight operations Part 119 of CASR Part 138 of CASR Guidance materials Version
2.5

Multi-Part AC 119-11 and AC 138-02 - Training and checking systems

Updated:

Multi-Part Advisory Circular AC 119-11 and AC 138-02 provides guidance on establishing and managing a training and…

Advisory Circular Flight operations Part 119 of CASR Part 138 of CASR Guidance materials Version
6.1

AC 139.C-07 - Strength rating of aerodrome pavements

Updated:

AC suspended for amendment to rating method from PCN to PCR. Expected re-release - 30 September 2025.

Advisory Circular Aerodromes Part 139 of CASR Guidance materials Version
1.0
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AC 147-02 - Approved Part 147 training organisations

Updated:

Advisory Circular AC 147-02 provides CASR Part 147 a list of the MTOs approved to carry out aircraft maintenance…

Advisory Circular Airworthiness Part 147 of CASR Guidance materials Version
8.6

AC 139.C-11 - Commissioning of aerodrome lighting systems

Updated:

Advisory circular AC 139.C-11 provides general information and advice on the requirements and method of commissioning…

Advisory Circular Aerodromes Part 139 of CASR Guidance materials Version
1.1

AC 91-25 - Fuel and oil safety

Updated:

Advisory Circular AC 91-25 provides guidance on procedures and practices to ensure the safety of fuelling operations.

Advisory Circular Flight operations Part 91 of CASR Guidance materials Version
1.2
Online version available at: https://www.casa.gov.au//resources-and-education/publications/guidance-material/advisory-circulars
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