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/T53/10 affecting AlliedSignal (Lycoming) turbine engines T53 series. CASA has assessed this AD and as a result has cancelled Australian AD/T53/10. The cancellation will become effective on 30 July 2009. 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 a framework for the regulation of civil aviation in Australia, ensuring the safety and efficiency of air navigation. Under this Act, the Governor-General has the authority to make regulations, such as those found in the Civil Aviation Safety Regulations 1998, which govern various aspects of civil aviation, including the issuance of airworthiness directives. These directives are crucial for maintaining the continuing airworthiness of aircraft and aeronautical products, aligning with international standards set by the Convention on International Civil Aviation. The Civil Aviation Safety Authority (CASA) plays a pivotal role in this regulatory framework by issuing airworthiness directives that address specific safety concerns. The cancellation of Australian AD/T53/10 for AlliedSignal (Lycoming) turbine engines T53 series exemplifies the application of these regulations, reflecting Australia’s commitment to international obligations and the continuous improvement of aviation safety standards.
Scope and Application
The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, governs the issuance and enforcement of airworthiness directives (ADs) in Australia, aiming to ensure the safety of air navigation. Regulation 39.001 of these Regulations empowers the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products. Such directives are legally binding instruments, and as such, they fall under the purview of disallowable instruments as per section 46A of the Acts Interpretation Act 1901 and are classified as legislative instruments under the Legislative Instruments Act 2003. The Act applies to aircraft and aeronautical products registered in Australia, with CASA acting as the national airworthiness authority responsible for implementing and enforcing ADs issued by the State of Design and ensuring compliance with international standards as outlined in Annex 8 to the Convention on International Civil Aviation. The geographic reach of the Act is national, as it pertains to all aircraft registered in Australia, but it also aligns with international civil aviation requirements. While the Act and its regulations provide a comprehensive framework, specific details and operational nuances may be further defined through subordinate instruments. There are no stated exclusions or exemptions within the scope of the ADs themselves, although the application and enforcement may vary depending on the specific circumstances and requirements of the aircraft in question.
Key Provisions
The Civil Aviation Act 1988, particularly sections 98 and 84A, provides the legislative foundation for the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA). Section 98 allows the Governor-General to make regulations for air navigation safety, empowering CASA to issue ADs under regulation 39.001 of the Civil Aviation Safety Regulations 1998. These directives are issued to ensure the continuing airworthiness of aircraft and aeronautical products. Importantly, ADs are considered disallowable instruments under section 46A of the Acts Interpretation Act 1901 and are classified as legislative instruments according to section 6 of the Legislative Instruments Act 2003.
In issuing an AD, CASA must adhere to the obligations outlined in Annex 8 to the Convention on International Civil Aviation, which assigns the State of Design responsibility for the continuing airworthiness of an aircraft type. The State of Design must provide necessary information to ensure the airworthiness of a type, which the State of Registry then uses to develop or adopt requirements for the aircraft's continued safe operation. When a State of Design issues an AD, CASA assesses the information and, if necessary, issues an Australian AD to enforce the requirements. The cancellation of AD/T53/10 for AlliedSignal (Lycoming) turbine engines T53 series is an example of this process, where CASA determined that the unsafe condition no longer existed, leading to the cancellation of the AD on 30 July 2009.
The Civil Aviation Safety Regulations 1998 impose specific obligations on CASA and other parties involved in the airworthiness process. CASA must evaluate ADs issued by States of Design and decide whether to issue corresponding Australian ADs. The State of Registry, in this case CASA, is also responsible for ensuring the continuing airworthiness of individual aircraft. Failure to comply with ADs can result in serious safety risks and legal consequences. CASA's role in issuing, assessing, and cancelling ADs ensures that aircraft remain safe and airworthy.
Failure to comply with an AD can lead to significant legal consequences. Under section 98 of the Civil Aviation Act 1988, CASA has the authority to take enforcement actions against individuals or entities that do not comply with ADs. The severity of the breach determines the penalties, which can include fines, imprisonment, or both. For example, failure to comply with an AD related to an aircraft’s airworthiness could result in substantial fines and imprisonment for the operator of the aircraft. Additionally, CASA can suspend or revoke a pilot’s licence or an aircraft’s certificate of airworthiness, which can have severe operational and financial implications for the affected party. These penalties underscore the importance of adhering to ADs to maintain the highest safety standards in aviation.