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 - 100 of 198 results

AC 21-25 - Limited category aircraft - permit index

Updated:

Advisory Circular AC 21-25 provides information on the process we use when assigning a permit index number to an…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version
5.1
DOWNLOAD
AC 21-25 Limited category aircraft - permit index (PDF, 489.26 KB)

AC 21-38 - Aircraft electrical load analysis and power source capacity

Updated:

Advisory Circular AC 21-38 provides guidance for the preparation or alteration of an electrical load analysis (ELA). It…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version
2.1
DOWNLOAD
AC 21-38 Aircraft electrical load analysis and power source capacity (PDF, 2.38 MB)

AC 35-01 - Wooden propellers

Updated:

Advisory Circular AC 35-01 provides guidance relating to the manufacture of fixed pitch wooden propellers.

Advisory Circular Airworthiness Part 35 of CASR Guidance materials Version
1.1
DOWNLOAD
AC 35-01 Wooden propellers (PDF, 517.83 KB)

AC 66-08 - Part 66 aircraft engineer licences privileges

Updated:

Advisory Circular AC 66-08 provides information and guidance to current and future holders of a Part 66 aircraft…

Advisory Circular Airworthiness Part 66 of CASR Aircraft maintenance engineer (AME) licensing Guidance materials Version
1.3
DOWNLOAD
AC 66-08 Part 66 aircraft engineer licences privileges (PDF, 1.38 MB)

AC 145-04 - Control and delivery of training by a Part 145 approved maintenance organisation

Updated:

Advisory Circular AC 145-04 provides guidance and information to Part 145 approved maintenance organisations (AMOs) on…

Advisory Circular Airworthiness Version: 2.3
DOWNLOAD
AC 145-04 Control and delivery of training by a Part 145 approved maintenance organisation (PDF, 381.1 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 Continuing airworthiness Guidance materials Version
1.1
DOWNLOAD
AC 20-06 Defect reporting (PDF, 374.43 KB)

AC 21-03 - Overview of special certificates of airworthiness

Updated:

Advisory circular AC 21-03 provides guidance and information to the public, Civil Aviation Safety Authority (CASA)…

Advisory Circular Airworthiness Part 21 of CASR Certification / Airworthiness Guidance materials Version
3.1
DOWNLOAD
AC 21-03 Overview of special certificates of airworthiness (PDF, 324.81 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 Certification / Airworthiness 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 Certification / Airworthiness 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//resources-and-education/publications/guidance-material/advisory-circulars
Back to top of page