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/BELL 206/4 affecting Bell 206A model aircraft. CASA has assessed this AD and as a result has cancelled it. The cancellation will become effective on 23 October 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, Airframes in the Airworthiness Engineering Group, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988, along with the Civil Aviation Safety Regulations 1998, established a comprehensive framework for ensuring the safety of air navigation in Australia. This legislative suite empowers the Governor-General to create regulations that serve the interests of air navigation safety, while also granting the Civil Aviation Safety Authority (CASA) the authority to issue airworthiness directives (ADs) for specific kinds of aircraft or aeronautical products. These ADs are integral to maintaining the continuing airworthiness of aircraft as mandated by Annex 8 to the Convention on International Civil Aviation, which assigns the State of Design the primary responsibility for ensuring an aircraft type's airworthiness and requires States of Registry to implement measures to uphold the airworthiness of individual aircraft. CASA, acting on behalf of Australia's interests, assesses information provided by the State of Design and issues corresponding ADs as necessary. This particular legislative instrument cancels an existing AD affecting Bell 206A model aircraft, reflecting the resolution of an unsafe condition and aligning with Australia's international obligations.
Scope and Application
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 together provide a regulatory framework for ensuring the safety of air navigation in Australia. Under the Act, the Governor-General has the authority to make regulations for the safety of air navigation, which includes the issuance of airworthiness directives (ADs) as specified in regulation 39.001 of the Civil Aviation Safety Regulations 1998. An AD is a legislative instrument that can be issued by the Civil Aviation Safety Authority (CASA) to mandate safety requirements for specific types of aircraft or aeronautical products. The ADs are aligned with the obligations of the State of Design under Annex 8 to the Convention on International Civil Aviation, which places the responsibility on the State of Design to provide information necessary to ensure the continuing airworthiness of an aircraft type. CASA, as Australia’s national airworthiness authority, is tasked with assessing this information and issuing Australian ADs as appropriate. The authority to issue and cancel ADs is exercised by CASA under section 84A of the Act, ensuring that any safety concerns are promptly addressed.
Key Provisions
The Civil Aviation Act 1988, supported by the Civil Aviation Safety Regulations 1998, outlines a comprehensive framework for the safety of air navigation in Australia. Under section 98 of the Act, the Governor-General has the authority to issue regulations, which can include the creation of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA) for specific types of aircraft or aeronautical products (section 39.001). These ADs are legislative instruments, as they fall under the purview of section 46A of the Acts Interpretation Act 1901 and are treated as disallowable instruments (subsection 39.001(5) of the Regulations). They are essential for maintaining the continuing airworthiness of aircraft as mandated by Annex 8 of the Convention on International Civil Aviation, where the State of Design holds the primary responsibility for the type design and must provide necessary information to ensure the airworthiness of aircraft registered in other states.
In the context of Australia, the State of Registry, through CASA, is responsible for ensuring the continuing airworthiness of aircraft registered in Australia. When a State of Design issues an AD for a type of aircraft registered in Australia, CASA must assess this information and, if necessary, issue a corresponding Australian AD to enforce the requirements. This process was exemplified in the case of AD/BELL 206/4, which affected Bell 206A model aircraft. After assessment, CASA determined that the unsafe condition addressed by the AD no longer existed, leading to the cancellation of the AD effective 23 October 2008. This cancellation aligns with Australia’s obligations under the Convention on International Civil Aviation and did not require consultation with the Australian public or a Regulatory Impact Statement.
The AD was issued by the Manager, Airframes, within the Airworthiness Engineering Group of CASA, in accordance with subsection 84A(2) of the Civil Aviation Act 1988. The legislation imposes obligations on CASA to assess and respond to ADs issued by States of Design, ensuring that Australian aircraft meet international safety standards. Failure to comply with these obligations could potentially result in civil or criminal consequences, though specific penalties for non-compliance are not detailed in the provided text. The regulatory framework is designed to maintain high safety standards in air navigation, ensuring that both the State of Design and the State of Registry work collaboratively to address any safety concerns related to aircraft airworthiness.