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 206/13 affecting Bell 206A and AB-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, 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 Australian Parliament, governs the regulation of civil aviation in Australia and was introduced to ensure the safety and efficiency of air navigation within the country. One significant aspect of this legislation is the authority it grants the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) as stipulated in the Civil Aviation Safety Regulations 1998. These directives are legislative instruments made under section 98 of the Act, aimed at maintaining the safety standards of aircraft and aeronautical products. The Civil Aviation Safety Regulations 1998 empower CASA to issue ADs in accordance with Annex 8 of the Convention on International Civil Aviation, ensuring that Australia meets its international obligations regarding the continuing airworthiness of aircraft. In this context, CASA has the responsibility to assess and implement ADs issued by the State of Design, ensuring that Australian aircraft comply with safety standards set forth by international agreements.
Scope and Application
The Civil Aviation Act 1988, complemented by the Civil Aviation Safety Regulations 1998, provides the legislative framework within which airworthiness directives (ADs) are issued in Australia. These regulations empower the Civil Aviation Safety Authority (CASA) to issue ADs concerning specific types of aircraft or aeronautical products to ensure the safety of air navigation, as stipulated under section 98 of the Act. Such directives are legislative instruments subject to disallowance, as outlined in section 46A of the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The issuance of ADs aligns with international standards set by the International Civil Aviation Organization (ICAO), where the State of Design holds responsibility for the continuing airworthiness of aircraft types, and the State of Registry is tasked with ensuring the ongoing airworthiness of individual aircraft registered within its jurisdiction. CASA, as Australia's national airworthiness authority, is responsible for assessing information provided by the State of Design and issuing corresponding Australian ADs when necessary. This framework ensures that all relevant stakeholders, including aircraft manufacturers, operators, and maintenance providers, are held to stringent safety standards, thereby enhancing the overall safety of air navigation.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 together facilitate the governance of aircraft airworthiness in Australia. Section 98 of the Act (1) allows the Governor-General to make regulations, while regulation 39.001 of the Regulations (2) empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific aircraft types or aeronautical products. These ADs are legislative instruments (3), meaning they have formal legal status. Such directives ensure that aircraft remain airworthy throughout their operational life and comply with international safety standards.
Under these provisions, the State of Design, which is responsible for the initial design of the aircraft, must provide necessary information to ensure the continuing airworthiness of the aircraft type (4). The State of Registry, which is Australia in this context, must then develop or adopt requirements to ensure the continuing airworthiness of the individual aircraft within its registry (5). When CASA identifies a safety issue, it may issue an Australian AD to mandate the requirements of the State of Design (6). For example, CASA issued AD/BELL 206/13 for Bell 206A and AB-206A model aircraft, but subsequently cancelled it due to the resolution of the unsafe condition (7).
The obligations imposed by these regulations include the requirement for CASA to assess any foreign ADs and, if necessary, issue corresponding Australian ADs. This ensures that all aircraft registered in Australia meet the necessary safety standards. Additionally, the State of Registry, through CASA, must ensure that all ADs are communicated effectively to the relevant operators and stakeholders to maintain compliance and safety (8). CASA’s role is critical in ensuring that airworthiness directives are issued promptly and accurately in response to identified safety issues.
Failure to comply with an AD can result in serious consequences. Under section 91 of the Civil Aviation Act 1988, an authorised officer may issue a direction to an operator to comply with an AD (9). Non-compliance with such a direction can result in criminal charges, with penalties including fines of up to $22,200 for individuals and $111,000 for corporations (10). Additionally, CASA may take enforcement actions such as grounding non-compliant aircraft, which can have significant operational and financial repercussions for operators (11). Therefore, adherence to ADs is not only a regulatory requirement but also a critical component of ensuring the safety of air navigation.