CIVIL AVIATION ACT 1988
CIVIL AVIATION SAFETY REGULATIONS 1998
ISSUE OF AIRWORTHINESS DIRECTIVE
Under section 98 of the Civil Aviation Act 1988, the Governor-General may make regulations for the purposes of the Act and in the interests of the safety of air navigation. Under regulation 39.001 of the Civil Aviation Safety Regulations 1998, CASA may issue airworthiness directives (ADs) for kinds of aircraft or aeronautical products. Subregulation 39.001(5) of the Civil Aviation Safety Regulations 1998 provides that an AD is a disallowable instrument for the purposes of section 46A of the Acts Interpretation Act 1901. Therefore, in accordance with section 6 of the Legislative Instruments Act 2003, an AD is a legislative instrument.
Under Annex 8 to the Convention on International Civil Aviation, the State of Design has overall responsibility for continuing airworthiness of an aircraft type, and must provide any information necessary to ensure the continuing airworthiness of a type to appropriate States of Registry. ADs (and their equivalents) are the most common form of continuing airworthiness information, and are issued by most ICAO Contracting States.
The State of Registry of an individual aircraft is responsible for its continuing airworthiness. Under Annex 8, the State of Registry must develop or adopt requirements to ensure the continuing airworthiness of aircraft. When a State of Design issues an AD against a type of aircraft on the Australian Register, CASA, as Australia’s national airworthiness authority, must assess that information and, if appropriate, issue an Australian AD to mandate the requirements of the State of Design.
The Civil Aviation Safety Authority or its predecessors issued AD/AT/4 affecting Airtractor AT 300 model aeroplanes with S/Nos 0001 to 0260. CASA has assessed this AD and as a result has cancelled Australian AD/AT/4. The cancellation will become effective on 7 May 2009. No replacement AD is required, as the unsafe condition no longer exists.
As this AD has been cancelled because of Australia’s obligations under the Convention on International Civil Aviation, no consultation with the Australian public has taken place on this AD cancellation. The Office of Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement.
The AD has been made by the Manager, Airframe and Structures, in the Airworthiness Engineering Group, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988, enacted to ensure the safety of air navigation, empowers the Governor-General to create regulations that align with the Act's objectives. Under this authority, the Civil Aviation Safety Regulations 1998 were established, allowing the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products, as outlined in regulation 39.001. These ADs are considered legislative instruments under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The purpose of these regulations is to uphold the continuing airworthiness of aircraft, in line with international standards set forth in Annex 8 of the Convention on International Civil Aviation, which designates the State of Design as the entity responsible for the ongoing airworthiness of an aircraft type.
In a specific case, CASA issued and subsequently cancelled Australian AD/AT/4 concerning Airtractor AT 300 model aeroplanes with serial numbers ranging from 0001 to 0260. This cancellation was made in response to the State of Design's actions, reflecting Australia's commitment to international civil aviation conventions. As the unsafe condition addressed by the AD no longer exists, no replacement AD is necessary. The cancellation process did not involve public consultation as per the obligations under the Convention on International Civil Aviation, and the Office of Best Practice Regulation has confirmed that ADs do not require a Regulatory Impact Statement. The AD cancellation was authorised by the Manager, Airframe and Structures, in the Airworthiness Engineering Group, on behalf of CASA, in accordance with the Civil Aviation Act 1988.
Scope and Application
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 govern the issuance of airworthiness directives (ADs) in Australia, establishing a regulatory framework designed to ensure the safety of air navigation. These regulations empower the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products under regulation 39.001. ADs serve as a critical mechanism for maintaining the continuing airworthiness of aircraft, aligning with the obligations outlined in Annex 8 of the Convention on International Civil Aviation, which places the responsibility of airworthiness on the State of Design and the State of Registry. In practice, CASA must assess any ADs issued by the State of Design concerning aircraft registered in Australia and, if deemed necessary, issue corresponding Australian ADs. The Act and Regulations have a broad application, affecting all aircraft registered in Australia, their manufacturers, and operators, as well as the aviation industry at large. The geographic reach of these regulations is national, applying across all states and territories within Australia. However, there are no stated exclusions or thresholds specified in the text, and the regulations extend their application through subordinate instruments such as ADs, which are considered legislative instruments under the Legislative Instruments Act 2003.
Key Provisions
The main provisions of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 focus on ensuring the safety of air navigation and the continuing airworthiness of aircraft. Under section 98 of the Civil Aviation Act 1988, the Governor-General has the authority to make regulations necessary for the safety of air navigation, empowering the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products (regulation 39.001). These ADs are considered legislative instruments under section 6 of the Legislative Instruments Act 2003 and are disallowable instruments as per section 46A of the Acts Interpretation Act 1901 (subregulation 39.001(5)). The State of Design has the overarching responsibility for ensuring the continuing airworthiness of an aircraft type, which involves providing necessary information to the States of Registry as stipulated in Annex 8 to the Convention on International Civil Aviation. Conversely, the State of Registry is responsible for the continuing airworthiness of individual aircraft, requiring them to develop or adopt requirements to maintain this airworthiness (Annex 8).
The obligations imposed on the parties governed by these regulations are primarily centred around compliance with airworthiness directives issued by CASA. When a State of Design issues an AD for an aircraft type registered in Australia, CASA must assess this information and, if deemed necessary, issue an Australian AD to enforce the requirements of the State of Design. This process ensures that Australian aircraft maintain the necessary safety standards as outlined by international conventions and national regulations. CASA, acting on behalf of Australia's interests, has the authority to issue, modify, or cancel ADs based on assessments of safety risks and compliance with international obligations.
Any failure to comply with the requirements of an airworthiness directive can lead to serious consequences. Under the Civil Aviation Act 1988, non-compliance with ADs can result in civil penalties, including fines. The severity of these penalties can vary, but for serious violations, the maximum penalty may extend to substantial fines or imprisonment. Additionally, in cases where an aircraft is operated in a manner that contravenes an AD, the operator may face prosecution, leading to criminal penalties. These stringent measures underscore the importance of adhering to airworthiness directives to ensure the safety of air navigation and the well-being of those involved in aviation activities.