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/AC/72 affecting Twin Aero Commander 600 series aircraft models. CASA has assessed this AD and as a result has cancelled Australian AD/AC/72. The cancellation will become effective on 31 July 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, Airframe and Structures, in the Airworthiness Engineering Branch, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988 was enacted to establish a comprehensive framework for the regulation of civil aviation in Australia, ensuring safety and efficiency in the industry. This Act provides the legal foundation for the Civil Aviation Safety Regulations 1998, which include provisions for issuing airworthiness directives (ADs) to maintain the safety of aircraft. Under section 98 of the Act, the Governor-General has the authority to make regulations in the interests of air navigation safety, while regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products. The objective of this regulation is to ensure that aircraft remain airworthy and comply with safety standards, as mandated by international agreements such as Annex 8 to the Convention on International Civil Aviation. In the specific case of the cancellation of AD/AC/72 for Twin Aero Commander 600 series aircraft models, CASA has determined that the unsafe condition addressed by the AD no longer exists, leading to the cancellation of the directive without the need for a replacement.
Scope and Application
The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, outlines the framework under which airworthiness directives (ADs) are issued to ensure the safety of aircraft and aeronautical products within Australia. Under section 98 of the Act, the Governor-General has the authority to make regulations for the Act, and regulation 39.001 specifically empowers the Civil Aviation Safety Authority (CASA) to issue ADs concerning particular types of aircraft or aeronautical products. These ADs serve as legislative instruments, subject to disallowance under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The ADs are mandated to align with Annex 8 of the Convention on International Civil Aviation, which designates the State of Design with the responsibility for the continuing airworthiness of aircraft types, requiring them to provide necessary information to States of Registry. In Australia, CASA, as the national airworthiness authority, must evaluate such information and, if necessary, issue corresponding ADs to enforce the requirements of the State of Design. This legislative approach ensures that Australian aviation standards are upheld in accordance with international obligations, facilitating the safe and efficient operation of aircraft within Australia’s jurisdiction.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the legislative framework for ensuring the safety of aircraft in Australia. Section 98 of the Act allows the Governor-General to make regulations for the safety of air navigation, and regulation 39.001 of the Regulations empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain types of aircraft or aeronautical products. These ADs are legislative instruments that require adherence and can be disallowed under section 46A of the Acts Interpretation Act 1901.
Under these provisions, CASA must ensure that the continuing airworthiness of aircraft registered in Australia is maintained. This includes assessing information provided by the State of Design and, if necessary, issuing Australian ADs to mandate the requirements of the State of Design. For instance, CASA issued and subsequently cancelled Australian AD/AC/72 concerning Twin Aero Commander 600 series aircraft models, effective from 31 July 2008, due to the unsafe condition no longer existing.
The obligations imposed by the Act and Regulations include the responsibility of the State of Design to provide necessary information to ensure continuing airworthiness and the State of Registry's duty to develop or adopt requirements for the same. CASA, as the national airworthiness authority, must act on the information from the State of Design and ensure compliance through the issuance of ADs where appropriate.
Failure to comply with ADs can result in severe consequences, both civil and criminal. Under the Civil Aviation Act 1988, violations can lead to penalties, including fines and imprisonment. The specific penalties depend on the nature and severity of the breach, with potential fines ranging from minor infractions to significant sums for more serious violations. Additionally, non-compliance can lead to aircraft being grounded, which can have substantial financial and operational repercussions for the aircraft owner or operator.