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/GOV/10 amendment 1 affecting McCauley model C290D[X]/T[X] propeller governors. CASA has assessed this AD and as a result has cancelled Australian AD/GOV/10 amendment 1. The cancellation will become effective on 9 April 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, 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 Commonwealth Parliament, governs the regulation of civil aviation in Australia, including the safety of air navigation. One of its key provisions is the authority for the Governor-General to make regulations under section 98, which the Civil Aviation Safety Regulations 1998 further specify. These regulations empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for types of aircraft or aeronautical products. The ADs, as legislative instruments, play a crucial role in maintaining the continuing airworthiness of aircraft, a responsibility assigned to the State of Registry under Annex 8 of the Convention on International Civil Aviation. This legislative framework ensures that Australia complies with international standards, thereby addressing the need for a robust and uniform regulatory approach to aviation safety. The ADs are instrumental in implementing safety measures and ensuring that unsafe conditions are mitigated, reflecting the policy objective of maintaining high safety standards in civil aviation.
Scope and Application
The Civil Aviation Act 1988 provides the legal framework for the regulation of civil aviation safety in Australia, including the issuance of airworthiness directives (ADs) to ensure the continuing airworthiness of aircraft. The Act empowers the Governor-General to make regulations for the purposes of the Act, and regulation 39.001 of the Civil Aviation Safety Regulations 1998 specifically allows the Civil Aviation Safety Authority (CASA) to issue ADs for kinds of aircraft or aeronautical products. These ADs serve as legislative instruments and must be aligned with the international standards set forth in Annex 8 to the Convention on International Civil Aviation, which places responsibility for continuing airworthiness on the State of Design and the State of Registry. CASA, as Australia’s national airworthiness authority, is mandated to issue Australian ADs if necessary to enforce the requirements of the State of Design. In the case of McCauley model C290D[X]/T[X] propeller governors, CASA issued and subsequently cancelled Australian AD/GOV/10 amendment 1 due to the resolution of the unsafe condition, without the need for public consultation or a Regulatory Impact Statement. This action underscores the continuous nature of airworthiness management and CASA’s role in upholding safety standards in compliance with international obligations.
Key Provisions
The Civil Aviation Act 1988, particularly section 98, empowers the Governor-General to create regulations that serve the interests of air navigation safety. These regulations may include the issuance of airworthiness directives (ADs), which are detailed in regulation 39.001 of the Civil Aviation Safety Regulations 1998. An AD is essentially a legislative instrument (subregulation 39.001(5)) issued by the Civil Aviation Safety Authority (CASA), the national airworthiness authority in Australia. This directive is issued for specific types of aircraft or aeronautical products to ensure their ongoing airworthiness. It is important to note that these directives are issued under the overarching responsibility of the State of Design, which must provide necessary information to ensure the safety and airworthiness of aircraft types as outlined in Annex 8 to the Convention on International Civil Aviation.
Entities governed by the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998, particularly the State of Design and the State of Registry, have significant obligations. The State of Design, typically the manufacturer, is responsible for the continuing airworthiness of an aircraft type and must provide necessary information to the appropriate State of Registry. In Australia, CASA, as the State of Registry, must assess this information and issue corresponding ADs if required to maintain the airworthiness of aircraft registered in Australia. This includes ensuring that any unsafe conditions identified in ADs issued by the State of Design are addressed appropriately.
Failure to comply with ADs can result in serious consequences. Civil penalties may be imposed for non-compliance, and the severity of the penalties can vary depending on the nature and extent of the breach. In the case of AD/GOV/10 amendment 1, which affected McCauley model C290D[X]/T[X] propeller governors, CASA determined that the unsafe condition no longer existed, leading to the cancellation of the AD. This cancellation was made in accordance with the legislative framework, without the need for public consultation or a Regulatory Impact Statement. The AD was issued by the Manager, Systems and New Technologies, in the Airworthiness Engineering Group, on behalf of CASA, following the procedures outlined in subsection 84A(2) of the Act.
In summary, the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 establish a regulatory framework designed to ensure the safety and airworthiness of aircraft. The key operative sections, such as sections 98 and 39.001, allow for the issuance of ADs, which are essential for maintaining the safety standards of aircraft. The obligations of the State of Design and the State of Registry include the dissemination and implementation of necessary safety information. Failure to adhere to these regulations can result in civil penalties, underscoring the importance of compliance with ADs.