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

Updated: 2 December 2022

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

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AC 21-39 Design and fitting of gaseous oxygen systems (PDF, 418.48 KB)

AC 21-40 - Measurement of airspeed in light aircraft – Certification requirements

Updated: 9 November 2022

Advisory Circular AC 21-40 provides guidance on methods for the development, calibration, control and operation of…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version

1.1

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AC 21-40 Measurement of airspeed in light aircraft – Certification requirements (PDF, 661.63 KB)

AC 21-41 - Light Sport Aircraft certificate of airworthiness

Updated: 14 November 2022

Advisory Circular AC 21-41 explains the requirements for the issue of a Certificate of Airworthiness for Light Sport…

Advisory Circular Airworthiness Part 21 of CASR Part 21 of CASR Guidance materials Version

1.1

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AC 21-41 Light sport aircraft certificate of airworthiness (PDF, 343.29 KB)

AC 21-42 - Light Sport Aircraft manufacturers' requirements

Updated: 1 May 2014

Advisory Circular AC 21-42 explains the certification requirements for an LSA manufacturer.

Advisory Circular Airworthiness Part 21 of CASR Part 21 of CASR Guidance materials Version

2.0

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AC 21-42 Light sport aircraft manufacturers' requirements (PDF, 359.43 KB)

AC 21-43 - Experimental certificates for unmanned aircraft

Updated: 1 June 2006

Advisory Circular AC 21-43 provides guidance to applicants seeking an Experimental Certificate for a large Unmanned…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version

1.0

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AC 21-43 Experimental certificates for unmanned aircraft (PDF, 64.69 KB)

AC 21-45 - Airworthiness approval of airborne automatic dependent surveillance broadcast e...

Updated: 1 December 2022

Advisory Circular AC 21-45 provides information on the airborne component of the 1090 Megahertz Extended Squitter…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version

2.3

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AC 21-45 Airworthiness approval of airborne automatic dependent surveillance broadcast equipment (PDF, 657.02 KB)

AC 21-46 - Airworthiness approval of avionics equipment

Updated: 1 October 2014

Advisory Circular AC 21-46 provides information and guidance concerning the standards used for the approval of required…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version

3.0

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AC 21-46 Airworthiness approval of avionics equipment (PDF, 300.61 KB)

AC 21-47 - Flight test safety

Updated: 1 November 2020

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)

AC 21-50 - Approval of software and electronic hardware parts

Updated: 24 November 2022

Advisory Circular AC 21-50 provides guidance on the approval of non-integrated aircraft software and electronic…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version

1.1

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AC 21-50 Approval of software and electronic hardware parts (PDF, 1.02 MB)

AC 21-53 - Electromagnetic compatibility

Updated: 1 September 2013

Advisory Circular AC 21-53 provides guidance on aircraft electromagnetic interference, electromagnetic compatibility,…

Advisory Circular Airworthiness Part 21 of CASR Guidance materials Version

1.0

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AC 21-53 Electromagnetic compatibility (PDF, 1.38 MB)

Search results for rules and regulations

79 total results

Part 139 of CASR Aerodromes

Updated: 28 October 2022

Part 139 of CASR sets out the requirements and standards for aerodromes with published instrument flight procedures.

Rule CASR Air traffic management systems Current

Schedule 5 of CAR CASA maintenance schedule

Updated: 10 November 2022

Schedule 5 relates to Part 4A of CAR and sets out the requirements of the CASA maintenance schedule including daily inspections, periodic inspections and post inspection checks.

Rule CAR Continuing airworthiness Current

Part 1 of CASR Preliminary

Part 1 of CASR provides a general explanation of the name, commencement date and structure of the CASR.

Rule CASR Administrative matters Current

Search results for publications

242 total results

Visual Flight Rules Guide

Updated:

1 July 2025

The Visual Flight Rules Guide (VFRG) helps pilots prepare, plan and fly safely under visual flight rules (VFR). The guide explains the rules in plain English and by using practical information and examples.

Publication Plain English guides

Cabin safety bulletin 20 Unruly and disruptive passengers

Updated:

24 March 2020

This bulletin provides operator guidance in relation to unruly or disruptive passengers. The bulletin has been archived from the our website and can be found on Trove.

Publication Cabin safety bulletins Cabin Safety

Airspace Risk and Safety Management Guide (ARASMG)

Updated:

9 August 2022

The Airspace Risk and Safety Management Guide (ARASMG) outlines the OAR processes in performing the functions and exercising the powers pursuant to the Airspace Act 2007 (the Act), Airspace Regulations 2007 (the Regulations) and the Australian…

Publication Manuals and handbooks

Search results for CASA Forms

390 total results

FOR Transition – Training and Checking System

Updated:

31 July 2024

Use this form to submit, and apply for an approval of, the Training and Checking System section of an exposition or operations manual as part of the transition to Parts 119, 121, 133, 135, and 138 of the CASR.

CASA Forms

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Flight operations Part 119 of CASR Part 121 of CASR Part 133 of CASR Part 135 of CASR Part 138 of CASR

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FOR Transition - Training and Checking System application form (PDF, 262.66 KB)

CASAF-62 - Training and checking systems and rotorcraft performance operations documents

Updated:

4 August 2022

Use this form to report technical issues or seek clarification about your submission documents in relation to the training and checking systems and rotorcraft performance operations deferred provisions.

CASA Forms

Webform

Flight operations