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 91 - 105 of 195 results

Selected filters:
Effective date

AC 21-12 - Classification of design changes

Updated:

Advisory Circular AC 21-12 provides guidance on the classification of design changes for the purposes of approval under…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version
1.1
DOWNLOAD
AC 21-12 Classification of design changes (PDF, 1.12 MB)

AC 21-39 - Design and fitting of gaseous oxygen systems

Updated:

Advisory circular AC 21-39 provides information and guidance to ensure that the fitting, or modification an aircraft’s…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version
1.1
DOWNLOAD
AC 21-39 Design and fitting of gaseous oxygen systems (PDF, 418.48 KB)

AC 61-05 - Night VFR rating

Updated:

Advisory Circular AC 61-05 provides guidance on night VFR (NVFR) ratings as well as operations under NVFR. It covers…

Advisory Circular Flight operations Part 61 of CASR Guidance materials Version
1.1
DOWNLOAD
AC 61-05 Night VFR rating (PDF, 819.96 KB)

AC 20-01 - Software configuration management

Updated:

Advisory Circular AC 20-01 provides guidance for the management of software in aircraft systems.

Advisory Circular Airworthiness Guidance materials Version
1.1
DOWNLOAD
AC 20-01 Software configuration management (PDF, 712.17 KB)

AC 173-04 - Clarification of area navigation criteria

Updated:

Advisory Circular AC 173-04 provides clarification and guidance to the interpretation of the area navigation (RNAV)…

Advisory Circular Airspace Part 173 of CASR Guidance materials Version
2.2
DOWNLOAD
AC 173-04 Clarification of area navigation criteria (PDF, 332.16 KB)

AC 20-06 - Defect reporting

Updated:

Advisory circular AC 20-06 provides guidance and information to people reporting defects to CASA in accordance with…

Advisory Circular Airworthiness Part 4B of CAR Guidance materials Version
1.1
DOWNLOAD
AC 20-06 Defect reporting (PDF, 374.43 KB)

AC 21-09 - Special flight permits

Updated:

Advisory Circular AC 21-09 provides and information to applicants applying for special flight permits (SFP) in…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version
4.1
DOWNLOAD
AC 21-09 Special flight permits (PDF, 374.1 KB)

AC 21-17 - Export airworthiness approvals

Updated:

Advisory Circular AC 21-17 provides guidance on applying for an export airworthiness approval for Class I, Class II or…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version
3.1
DOWNLOAD
AC 21-17 Export airworthiness approvals (PDF, 310.89 KB)
Online version available at: https://www.casa.gov.au//search-centre/advisory-circulars
Back to top of page