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.
The Civil Aviation Safety Authority or its predecessors issued AD/DHC-1/5 Amdt 2 affecting all De Havilland DHC-1 (Chipmunk) model aeroplanes. CASA has assessed this AD and as a result has cancelled Australian AD/DHC-1/5 Amdt 2. 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, 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 was enacted to provide for the safety of air navigation, and to establish the Civil Aviation Safety Authority (CASA) for overseeing matters related to civil aviation. The Act empowers the Governor-General to make regulations, including those concerning airworthiness directives, for the purposes of ensuring the safety of air navigation. The Civil Aviation Safety Regulations 1998 further delegate authority to CASA to issue airworthiness directives for specific kinds of aircraft or aeronautical products. This legislative framework was designed to align with international standards and ensure that airworthiness directives, as the primary means of communicating continuing airworthiness information, are effectively managed within Australia’s aviation safety regime. The cancellation of an airworthiness directive, such as AD/DHC-1/5 Amdt 2, is conducted in accordance with Australia’s obligations under the Convention on International Civil Aviation, reflecting the cooperative approach to global aviation safety standards.
Scope and Application
The Civil Aviation Act 1988, together with the Civil Aviation Safety Regulations 1998, provides the legislative framework under which the Civil Aviation Safety Authority (CASA) can issue airworthiness directives (ADs) to ensure the safety of air navigation. These directives apply to specific kinds of aircraft or aeronautical products and are a regulatory tool to mandate certain actions or modifications to maintain or improve the safety standards of aircraft. As a legislative instrument, an AD can be issued under regulation 39.001 of the Civil Aviation Safety Regulations 1998, and its issuance is aligned with Australia's obligations under international aviation conventions, particularly Annex 8 to the Convention on International Civil Aviation, which mandates that the State of Design and the State of Registry have responsibilities for the continuing airworthiness of aircraft. The application of these directives is not subject to public consultation as they are not required to undergo a Regulatory Impact Statement, given their nature as technical safety measures. CASA, in its capacity to enforce these regulations, has the authority to issue, amend, or cancel ADs as necessary, ensuring that they meet the stringent safety standards necessary for maintaining air navigation safety across Australia.
Key Provisions
The Civil Aviation Act 1988, through section 98, empowers the Governor-General to make regulations for the safety of air navigation. One such regulation, 39.001 of the Civil Aviation Safety Regulations 1998, allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain types of aircraft or aeronautical products. These ADs are legislative instruments and are disallowable under section 46A of the Acts Interpretation Act 1901. This legal framework is designed to ensure the ongoing safety and airworthiness of aircraft, reflecting Australia's commitment to international standards set by Annex 8 to the Convention on International Civil Aviation.
The obligations imposed by the Civil Aviation Act 1988 and its accompanying regulations include the responsibility of the State of Design to provide necessary information for the continuing airworthiness of an aircraft type. The State of Registry, which is typically the country where the aircraft is registered, must then develop or adopt requirements to ensure the airworthiness of the individual aircraft. These requirements are operationalised through ADs, which are a standard means of communicating continuing airworthiness information among International Civil Aviation Organization (ICAO) Contracting States. This regulatory approach ensures a coordinated global effort to maintain high safety standards.
CASA, as the regulatory authority in Australia, has issued AD/DHC-1/5 Amdt 2 for De Havilland DHC-1 (Chipmunk) model aeroplanes. However, CASA has since assessed this AD and determined that it should be cancelled as the unsafe condition it was addressing no longer exists. This cancellation, which will become effective on 23 October 2008, aligns with Australia's international obligations under the Convention on International Civil Aviation. As this cancellation does not require consultation with the Australian public or a Regulatory Impact Statement, CASA has exercised its authority under subsection 84A(2) of the Act to make this decision through the Manager, Systems and New Technologies, in the Airworthiness Engineering Group.
The implications of breaching the provisions of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 can be severe. Non-compliance with ADs may result in the grounding of aircraft, which can lead to substantial financial and operational disruptions for airlines and aircraft owners. In more severe cases, failure to adhere to airworthiness directives can lead to criminal charges and penalties, including fines and imprisonment, for those responsible for the oversight and maintenance of the aircraft. The exact penalties depend on the nature and severity of the breach, with potential maximum penalties outlined in the Civil Aviation Act 1988 and associated regulations.