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.

Search by keyword such as the title or number of an AC. You can also use the category or rule part filters to show AC related to a particular topic or Part of CASR.

Showing 151 - 160 of 198 results

139.E-01 - Reporting of tall structures

Updated:

Advisory Circular 139.E-01 provides guidance to those authorities and persons involved in the planning, approval,…

Advisory Circular General advice Part 139 of CASR General safety matters Guidance materials Version
1.0
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AC 139.E-01 Reporting of tall structures (PDF, 301.9 KB)

AC 91-18 - Restraints of infants and children

Updated:

The purpose of Advisory Circular AC 91-18 is to provide information on the use of child restraint systems by infants,…

Advisory Circular Flight operations Part 91 of CASR Flight operations Guidance materials Version
1.1
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AC 91-18 - Restraint of infants and children (PDF, 736.71 KB)

AC 91-05 - Performance-based navigation

Updated:

Advisory Circular AC 91-05 v1.0 - Performance-based navigation provides information on the concept of performance-based…

Advisory Circular Flight operations Part 91 of CASR Flight operations Guidance materials Version
1.0
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AC 91-05 Performance-based navigation (PDF, 1 MB)

AC 91-06 - Performance-based communications and surveillance

Updated:

Advisory Circular AC 91-06 explains the basic principles of PBCS and the way it relates to the flight planning and…

Advisory Circular Flight operations Part 91 of CASR Flight operations Guidance materials Version
1.1
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AC 91-06 Performance-based communication and surveillance (PBCS) (PDF, 464.6 KB)

AC 139.C-06 - Skid resistance of aerodrome pavements

Updated:

Advisory Circular AC 139.C-06 provides advice regarding the skid resistance requirements of aerodrome pavements,…

Advisory Circular Aerodromes Part 139 of CASR Guidance materials Version
1.0
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AC 139.C-06 Skid resistance of aerodrome pavements (PDF, 2.73 MB)

AC 21-47 - Flight test safety

Updated:

Advisory Circular AC 21-47 provides general safety information to our staff, aircraft industry participants and amateur…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version
1.1
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AC 21-47 Flight test safety (PDF, 509.05 KB)
Online version available at: https://www.casa.gov.au//resources-and-education/publications/guidance-material/advisory-circulars
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