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 EASA has issued AD 2007-0160-E affecting Agusta Model A109 helicopters. EASA is the State of Design for this type. CASA has assessed this AD and has issued Australian AD/A109/57, which will become effective on 14 June 2007.
As this AD is issued because of Australia’s obligations under Convention on International Civil Aviation, and because it is issued in response to an AD raised by the relevant State of Design, no consultation of the Australian public has taken place on this AD. The Office of Regulatory Review has determined that ADs do not require a Regulatory Impact Statement.
The AD has been made by the Manager, Airframes, in the Manufacturing, Certification and New Technologies Office, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988, enacted by the Australian Parliament, was established to provide a regulatory framework for the safety and efficiency of civil aviation within Australia. The Act addresses the need for comprehensive oversight and regulation of airworthiness, safety standards, and operational procedures to ensure the safe and efficient use of Australian airspace. One significant aspect of this legislation is the authority it grants to the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) that mandate compliance with safety requirements for aircraft and aeronautical products, aligning with international standards and obligations under the Convention on International Civil Aviation. These directives, issued under the Civil Aviation Safety Regulations 1998, are legislative instruments designed to maintain the continuing airworthiness of aircraft registered in Australia.
The policy objective behind these regulations is to ensure that Australian civil aviation maintains the highest standards of safety and compliance with international aviation safety norms, as exemplified by the issuance of ADs in response to directives from States of Design, such as the European Aviation Safety Agency (EASA). This approach underscores Australia’s commitment to international aviation safety standards while ensuring that Australian aircraft meet the necessary safety requirements.
Scope and Application
The Civil Aviation Act 1988, in conjunction with the Civil Aviation Safety Regulations 1998, empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) concerning specific types of aircraft or aeronautical products. These ADs are legislative instruments that mandate safety requirements, ensuring that aircraft meet specific safety standards for airworthiness. The issuance of such directives is driven by the overarching responsibility of the State of Design to maintain the continuing airworthiness of an aircraft type, as stipulated in Annex 8 of the Convention on International Civil Aviation. In Australia, CASA, as the national airworthiness authority, is obligated to evaluate and, where necessary, issue Australian ADs in response to directives issued by the State of Design, ensuring compliance with international aviation safety standards. The scope of these ADs applies to all aircraft registered in Australia and extends to any aeronautical products relevant to those aircraft, thereby ensuring the safety and airworthiness of aviation activities within Australian jurisdiction. No public consultation is required for the issuance of these ADs, and they do not necessitate a Regulatory Impact Statement. The ADs are issued by CASA on behalf of the Minister for Infrastructure and Transport, following the assessment and determination of necessity by CASA’s relevant office.
Key Provisions
The Civil Aviation Act 1988, through section 98, empowers the Governor-General to establish regulations aimed at enhancing air navigation safety. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These ADs are considered disallowable instruments under section 46A of the Acts Interpretation Act 1901 and are classified as legislative instruments in accordance with section 6 of the Legislative Instruments Act 2003.
These airworthiness directives play a critical role in maintaining the safety standards of aircraft. Under Annex 8 of the Convention on International Civil Aviation, the State of Design, which is responsible for the design of the aircraft, must provide necessary information to ensure the continuing airworthiness of the aircraft type. States of Registry, including Australia, must develop or adopt requirements to ensure the continuing airworthiness of aircraft registered within their jurisdiction. When the State of Design issues an AD, CASA, as Australia's national airworthiness authority, must assess this information and, if appropriate, issue an Australian AD to enforce the requirements of the State of Design.
For example, the European Aviation Safety Agency (EASA) has issued AD 2007-0160-E for Agusta Model A109 helicopters. Given that EASA is the State of Design for this helicopter type, CASA assessed this directive and issued Australian AD/A109/57, which became effective on 14 June 2007. Because this AD is issued in response to an AD by the relevant State of Design and is in line with Australia's obligations under the Convention on International Civil Aviation, no public consultation was required. The Office of Regulatory Review has also determined that such ADs do not necessitate a Regulatory Impact Statement.
The AD was made by the Manager, Airframes, in the Manufacturing, Certification and New Technologies Office, on behalf of CASA, in accordance with subsection 84A(2) of the Act. This process ensures that the ADs issued are in compliance with national and international standards and are aimed at maintaining the highest levels of safety in the aviation industry.