Civil Aviation Order 100.24 (Maintenance Authority) Instrument 2007

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2007L04659 In force Legislative Instrument

Legislation content

Civil Aviation Order 100.24

made under regulation 33B of the Civil Aviation Regulations 1988.

This compilation was prepared on 26 March 2026 taking into account amendments up to Civil Aviation Orders 100.23 and 100.24 Amendment Instrument 2026.

Prepared by the Legal Services Branch, Legal Division, Civil Aviation Safety Authority, Canberra.

Compilation No. 2

Contents

Page

1A Name of instrument

1B Definitions

1 Requirements for issue

2 Application for maintenance authority

3 Issue of maintenance authority

Note to Civil Aviation Order 100.24

 

Civil Aviation Order 100.24

Maintenance authority

1A Name of instrument

 1A.1 This instrument is Civil Aviation Order 100.24 (Maintenance Authority) Instrument 2007.

 1A.2 This instrument may be cited as Civil Aviation Order 100.24.

 1A.3 A reference in a CASA instrument (being an instrument issued by CASA under a statutory power to issue the instrument) to Section 100.24 of the Civil Aviation Orders is a reference to this instrument.

Note   This Civil Aviation Order is to be read in conjunction with Civil Aviation Order 100.23.

1B Definitions

Note   In this instrument, certain terms and expressions have the same meaning as they have in the Civil Aviation Act 1988 and the regulations. These include aircraft engineer licence, CAR, Director and RPA.

  In this Order:

maintenance authority means an airworthiness authority to carry out maintenance on aircraft.

Note   airworthiness authority is defined in regulation 2 of CAR as meaning an authority under regulation 33B of CAR.

1 Requirements for issue

 1.1 Subject to paragraph 1.1A, unless otherwise approved by the Director, an applicant for a maintenance authority must hold an aircraft engineer licence.

 1.1A Paragraph 1.1 does not apply to an applicant for a maintenance authority that is for maintenance on RPA.

 1.2 An applicant for such a maintenance authority must submit satisfactory evidence that:

(a) the applicant has been adequately trained for the purpose; and

(b) the applicant has had adequate practical experience of the duties to be performed in relation to the authority; and

(c) the applicant has passed such examinations in relation to the authority as are required or approved for the purpose.

2 Application for maintenance authority

An application for a maintenance authority must be made using the application form Application for Initial Issue or Amendment to Scope of a Maintenance Authority and it should normally be endorsed by the applicant’s employer in regard to the circumstances in which the authority is intended to be used.

3 Issue of maintenance authority

 3.1 A maintenance authority may be issued to an applicant who satisfies the requirements of subsection 1 and who has demonstrated competence to perform the maintenance functions associated with the privileges endorsed in the authority.

 3.2 A maintenance authority may be issued in respect of a maintenance function to be performed and certified on a particular aircraft, or a type, series or group of aircraft, engine, systems or installations.

Note to Civil Aviation Order 100.24

The Civil Aviation Order (in force under the Civil Aviation Regulations 1988) as shown in this document comprises Civil Aviation Order 100.24 made as indicated in the Table below.

Table of Orders

Year and
number

Date of registration on FRLI

Date of
commencement

Application, saving or
transitional provisions

CAO 100.24 Instrument 2007

17 December 2007 (see F2007L04659)

18 December 2007

 

CAO 100.24 2011 No. 1

22 June 2011 (see F2011L01190)

27 June 2011

 

CAOs 100.23 and 100.24 Amendment Instrument 2026

25 March 2026 (see - F2026L00317)

26 March 2026

 

 

Table of Amendments

ad. = added or inserted     am. = amended     rep. = repealed     rs. = repealed and substituted

Provision affected

How affected

s. 100.24

rs. CAO 100.24 Instrument 2007

Note before subs. 1

rep. F2026L00317

subs. 1A

ad. F2026L00317

subs. 1B

ad. F2026L00317

subs. 1

am. CAO 100.24 2011 No. 1, F2026L00317

subs. 2

am. F2026L00317

subs. 3

am. F2026L00317

 

Overview

Civil Aviation Order 100.24, enacted in 2007 and updated in 2011 and 2026, serves to establish the framework for issuing maintenance authorities within the Australian aviation industry. This legislative instrument was introduced to address the need for stringent and consistent standards for maintenance personnel to ensure the safety and airworthiness of aircraft. The Civil Aviation Safety Authority (CASA), acting under the authority of the Civil Aviation Act 1988, is the enacting body for this order, with the overarching policy objective being to maintain and enhance the safety of civil aviation in Australia. The Order sets forth the requirements for individuals seeking maintenance authorities, including necessary qualifications, training, and experience, as well as the process for application and issuance of such authorities. This regulatory framework is essential in maintaining high standards for aircraft maintenance, thereby contributing to the overall safety and efficiency of the civil aviation sector.

Scope and Application

The Civil Aviation Order 100.24, titled "Maintenance Authority" Instrument 2007, is a legislative instrument under the Civil Aviation Regulations 1988, and it sets out the requirements for the issue and use of a maintenance authority in the context of civil aviation. This Order applies to any person or entity that seeks to carry out maintenance on aircraft, encompassing both fixed-wing and rotary-wing aircraft, as well as remotely piloted aircraft (RPA). The scope of the Order extends to all maintenance activities conducted within Australia, governed by the Civil Aviation Safety Authority (CASA) and aligned with the Civil Aviation Act 1988. Notably, the Order stipulates that an applicant for a maintenance authority must hold an aircraft engineer licence, with an exception for applicants seeking authority specifically for maintenance on RPA, who must provide evidence of adequate training and practical experience. The Order mandates the use of a specified application form for seeking a maintenance authority, and CASA retains the discretion to issue such authorities based on the demonstrated competence of the applicant in performing the associated maintenance functions.

Key Provisions

Civil Aviation Order 100.24, which is part of the Civil Aviation Regulations 1988, outlines the requirements and procedures for the issuance of maintenance authorities in Australia. Maintenance authorities allow individuals or entities to carry out maintenance on aircraft, ensuring that such maintenance meets airworthiness standards. Section 1.1 of the Order stipulates that applicants for a maintenance authority must hold an aircraft engineer licence, except in cases where the authority is for maintenance on remotely piloted aircraft (RPA), as per section 1.1A. For these exceptions, applicants must provide evidence of adequate training, practical experience, and pass any required examinations, as detailed in section 1.2. The Order mandates that applications for a maintenance authority must be submitted using a specific application form, typically endorsed by the applicant’s employer regarding the intended use of the authority, as stated in section 2. A maintenance authority may be granted to an applicant who meets the criteria outlined in section 1 and demonstrates the requisite competence to perform the specified maintenance functions, as per section 3.1. This authority can cover maintenance on a particular aircraft or a category of aircraft, engines, systems, or installations, as detailed in section 3.2. Entities and individuals governed by this Order must ensure compliance with the outlined requirements for issuing and maintaining a maintenance authority. This includes holding the necessary qualifications and providing the required evidence of training and experience. Employers must endorse applications, ensuring that the maintenance authority aligns with the intended operational context. Non-compliance with these obligations may result in the denial or revocation of a maintenance authority, potentially impacting the operational readiness and airworthiness of aircraft. Breaching the provisions of Civil Aviation Order 100.24 can lead to significant consequences. For instance, operating without a valid maintenance authority or providing false information in an application can result in civil penalties, including fines and potential legal action. The Order does not explicitly state maximum penalties, but the severity of the breach may influence the extent of the penalty. Additionally, failure to comply with the Order’s requirements could lead to criminal charges, especially if such non-compliance results in unsafe aircraft operations. In such cases, the penalties may include substantial fines and imprisonment, depending on the gravity of the breach and its impact on aviation safety.

Legal classification tags

Area of Law
Administrative Law
Instrument
Legislative Instrument
Concepts
Definitions & Interpretation
Requirements for issue
Application for maintenance authority
Issue of maintenance authority

Interactions

Authorises

All Versions

Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.