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/DHC-3/20 affecting De Havilland DHC-3 (Otter) model aeroplanes. CASA has assessed this AD and as a result has cancelled Australian AD/DHC-3/20. The cancellation will become effective on 20 November 2008. 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, Systems and New Technologies, 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 by the Parliament of Australia, addresses the regulation of civil aviation safety within the country, providing a framework for ensuring the safety of air navigation. Under this Act, the Civil Aviation Safety Regulations 1998 were established to further detail the safety requirements and the powers of the Civil Aviation Safety Authority (CASA). These regulations include provisions for the issuance of airworthiness directives, which serve as a critical tool for maintaining the safety standards of aircraft. The issuance of airworthiness directives is aligned with the overarching policy objective of ensuring the safety of air navigation, reflecting Australia’s commitment to international civil aviation standards as set forth in the Convention on International Civil Aviation. The ADs are legislative instruments that CASA issues to mandate compliance with safety requirements, thereby ensuring the continuing airworthiness of aircraft registered in Australia.
Scope and Application
The Civil Aviation Act 1988, together with the Civil Aviation Safety Regulations 1998, provides a comprehensive framework for ensuring the safety of air navigation in Australia. Under this legislative structure, the Civil Aviation Safety Authority (CASA) is empowered to issue airworthiness directives (ADs) to address issues concerning the continuing airworthiness of aircraft and aeronautical products. These ADs serve as a critical tool for maintaining safety standards and are applicable to specific kinds of aircraft or aeronautical products, thereby impacting the aviation industry broadly. The ADs are legislative instruments as per the Legislative Instruments Act 2003, and their issuance aligns with Australia's obligations under Annex 8 to the Convention on International Civil Aviation. The ADs, once issued, are subject to assessment and potential cancellation by CASA when the unsafe conditions they address no longer exist, such as in the case of AD/DHC-3/20 for De Havilland DHC-3 (Otter) model aeroplanes, which was cancelled on 20 November 2008. The process of issuing and cancelling ADs is conducted by CASA without public consultation as mandated by the Office of Best Practice Regulation, which has determined that ADs do not require a Regulatory Impact Statement.
Key Provisions
The Civil Aviation Act 1988, in conjunction with the Civil Aviation Safety Regulations 1998, outlines the framework through which the Civil Aviation Safety Authority (CASA) issues airworthiness directives (ADs). According to section 98 of the Act, the Governor-General has the authority to create regulations in the interest of air navigation safety. Specifically, regulation 39.001 allows CASA to issue ADs for particular kinds of aircraft or aeronautical products. Under subregulation 39.001(5), these ADs are classified as disallowable instruments under section 46A of the Acts Interpretation Act 1901, and consequently, as legislative instruments under section 6 of the Legislative Instruments Act 2003. This regulatory structure ensures that ADs serve as a crucial mechanism for maintaining the continuing airworthiness of aircraft.
The obligations under this legislation place significant responsibility on the State of Design and the State of Registry. The State of Design, as defined by Annex 8 to the Convention on International Civil Aviation, must provide all necessary information to ensure the continuing airworthiness of a specific aircraft type. This includes issuing ADs, which are the primary means of disseminating such information to other states. Conversely, the State of Registry must develop or adopt requirements to maintain the airworthiness of individual aircraft within its jurisdiction. In the case of Australia, CASA, as the national airworthiness authority, is mandated to assess any ADs issued by the State of Design and, if deemed necessary, issue corresponding Australian ADs to enforce these requirements.
Failure to comply with the provisions of these ADs can lead to severe consequences. While the text does not specify particular offences, it is implicit that non-compliance could result in civil or criminal penalties. The Civil Aviation Act 1988 and associated regulations outline various penalties for breaches, though the exact penalties are not detailed in the provided text. The overarching implication is that adherence to ADs is crucial for maintaining safety standards in air navigation. The text notes that, in this instance, AD/DHC-3/20 affecting De Havilland DHC-3 (Otter) model aeroplanes has been cancelled due to the resolution of the unsafe condition it addressed, without necessitating a replacement AD.
In summary, the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide a comprehensive regulatory framework for the issuance and enforcement of ADs. These instruments are essential for ensuring the continuing airworthiness of aircraft. The obligations fall on the State of Design to issue ADs and the State of Registry to implement them, with CASA playing a key role in enforcing these directives within Australia. Non-compliance with ADs may result in civil or criminal penalties, although the specific penalties are not detailed in the provided text. The cancellation of AD/DHC-3/20 exemplifies how these regulations operate in practice, ensuring that safety standards are maintained and any unsafe conditions are promptly addressed.