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/CESSNA 500/1 affecting Cessna 500 model aeroplanes. CASA has assessed this AD and as a result has cancelled Australian AD/CESSNA 500/1. The cancellation will become effective on 25 September 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, 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 by the Parliament of Australia, is a cornerstone of Australia's aviation safety framework, designed to ensure the safety of air navigation. Complementing this Act, the Civil Aviation Safety Regulations 1998 empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific aircraft types or aeronautical products, in line with international standards set by the International Civil Aviation Organization (ICAO). ADs are critical tools for maintaining the continuing airworthiness of aircraft and are issued by most ICAO Contracting States. The 2008 amendment to these regulations, represented by the legislative instrument F2008L03292, addresses the need to cancel an existing AD for Cessna 500 model aeroplanes, reflecting the cessation of the unsafe condition that initially prompted its issuance. This cancellation aligns with Australia's obligations under the Convention on International Civil Aviation and is implemented by CASA without public consultation, as it does not necessitate a Regulatory Impact Statement according to the Office of Best Practice Regulation. The AD cancellation is executed by CASA's Manager, Airframe and Structures, within the Airworthiness Engineering Group, pursuant to the Act's provisions.
Scope and Application
The Civil Aviation Act 1988, in conjunction with the Civil Aviation Safety Regulations 1998, provides the legislative framework for the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA). The Act applies to all entities involved in civil aviation activities within Australia, including aircraft operators, manufacturers, and maintenance organisations, as well as to specific types of aircraft and aeronautical products. The geographic reach of the Act is national, ensuring compliance with safety standards across all jurisdictions in Australia. The ADs issued by CASA are legislative instruments that mandate specific actions to ensure the continuing airworthiness of aircraft, which are required under international standards set by the International Civil Aviation Organization (ICAO). The State of Design has the primary responsibility for ensuring the airworthiness of aircraft types, while the State of Registry is responsible for the airworthiness of individual aircraft within its registry. In the case of ADs issued by the State of Design, CASA must review and, if necessary, issue corresponding Australian ADs to enforce these requirements domestically. The specific AD/CESSNA 500/1, which was issued for Cessna 500 model aeroplanes, was subsequently cancelled by CASA due to the resolution of the unsafe condition it addressed, with no replacement AD being required. This cancellation was made in accordance with Australia's international obligations under the Convention on International Civil Aviation, and no public consultation or Regulatory Impact Statement was deemed necessary.
Key Provisions
The Civil Aviation Act 1988, as supplemented by the Civil Aviation Safety Regulations 1998, establishes the framework for the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA) (sections 98 and 39.001). ADs are legislative instruments (subsection 39.001(5)) that serve to mandate the continuing airworthiness of aircraft types. These directives are issued in response to identified safety issues and are aligned with the responsibilities outlined in Annex 8 to the Convention on International Civil Aviation, which designates the State of Design as having overall responsibility for the continuing airworthiness of an aircraft type.
The obligations imposed by the Act and the Regulations on CASA and the State of Registry include the assessment of ADs issued by the State of Design. When an AD is issued by a foreign authority against a type of aircraft registered in Australia, CASA must evaluate this directive and, if deemed necessary, issue a corresponding Australian AD to ensure compliance with safety standards. This process ensures that Australian-registered aircraft meet international safety requirements and maintains the safety standards set forth under Australian law.
Failure to comply with the requirements set out in an AD can result in significant consequences. Under section 98 of the Civil Aviation Act 1988, non-compliance can be considered an offence. The specific penalties for such breaches are not detailed in the provided text, but they typically include fines and potential imprisonment. Additionally, the operational risks associated with non-compliance can lead to civil liabilities, such as damages from accidents resulting from non-compliance with mandated safety standards. It is essential for operators and owners of affected aircraft to adhere to the terms of any AD to avoid these potential legal and financial repercussions.