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/AC/68 affecting all Twin Aero Commander aircraft models. CASA has assessed this AD and as a result has cancelled Australian AD/AC/68. The cancellation will become effective on 31 July 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 Branch, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988, as amended by the Civil Aviation Safety Regulations 1998, provides the legal framework for ensuring the safety of air navigation in Australia. One of the mechanisms under this Act is the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA), which serve to mandate safety measures for specific aircraft or aeronautical products. This regulatory approach aligns with international standards set by the Convention on International Civil Aviation, where the State of Design holds responsibility for the continuing airworthiness of aircraft types, and the State of Registry is tasked with ensuring the airworthiness of individual aircraft. In a specific instance, CASA issued and subsequently cancelled Australian AD/AC/68, which affected all Twin Aero Commander aircraft models, due to the resolution of the unsafe condition that prompted its issuance. This cancellation, effective from 31 July 2008, did not require public consultation or a Regulatory Impact Statement, and was carried out in accordance with the legislative requirements outlined in the Act.
Scope and Application
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 establish the framework for ensuring the safety of air navigation in Australia. Under this legislation, the Civil Aviation Safety Authority (CASA) is empowered to issue airworthiness directives (ADs) for specific kinds of aircraft or aeronautical products to maintain the safety standards mandated by the Act. These ADs are legislative instruments and are subject to disallowance under the Acts Interpretation Act 1901. As Australia is a signatory to the Convention on International Civil Aviation, the State of Design retains responsibility for the continuing airworthiness of aircraft types, while the State of Registry, in this case CASA, ensures that aircraft on the Australian Register meet the necessary safety standards. The cancellation of an Australian AD, such as AD/AC/68 for Twin Aero Commander aircraft, is informed by assessments of safety conditions and international obligations, and such actions are carried out by CASA without public consultation as they do not require a Regulatory Impact Statement. The ADs are issued by designated personnel within CASA, ensuring that the legislative mandates are implemented effectively and in accordance with the statutory provisions.
Key Provisions
The main operative sections of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 establish the framework for issuing airworthiness directives (ADs). Section 98 of the Civil Aviation Act 1988 allows the Governor-General to make regulations for the safety of air navigation, while regulation 39.001 of the Civil Aviation Safety Regulations 1998 grants the Civil Aviation Safety Authority (CASA) the power to issue ADs for types of aircraft or aeronautical products. An AD is considered a disallowable instrument under section 46A of the Acts Interpretation Act 1901 and is a legislative instrument as per section 6 of the Legislative Instruments Act 2003.
The obligations imposed by these sections and regulations on the parties involved are significant. The State of Design holds the primary responsibility for the continuing airworthiness of an aircraft type and must provide necessary information to States of Registry, as stipulated in Annex 8 of the Convention on International Civil Aviation. The State of Registry, in turn, must develop or adopt requirements to ensure the continuing airworthiness of individual aircraft within its jurisdiction. In Australia, CASA must assess any ADs issued by the State of Design and, if deemed necessary, issue corresponding Australian ADs to mandate the required safety measures.
Failing to comply with an AD can result in serious consequences. While the specific penalties are not detailed in the text, breaches of airworthiness requirements can lead to severe civil or criminal penalties. The text mentions that ADs are subject to disallowance and are considered legislative instruments, indicating that non-compliance with these directives could attract regulatory scrutiny and enforcement action. Although no specific penalties are stated, the overarching framework of the Civil Aviation Act 1988 and related regulations implies that significant consequences could follow for non-compliance.
In summary, the key provisions of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 enable CASA to issue ADs to ensure the safety and airworthiness of aircraft. The obligations of the State of Design and State of Registry are clearly defined, with CASA acting as the national authority to enforce these requirements. Non-compliance with ADs can lead to severe civil or criminal penalties, reflecting the importance of adhering to these safety directives.