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/LTS/3 affecting AlliedSignal (Lycoming) LTS 101 series turbine engines. CASA has assessed this AD and as a result has cancelled Australian AD/LTS/3. The cancellation will become effective on 27 August 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, Future Technology and Regulatory Trends, in the Standards Development and Future Technology Division, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988 was enacted to regulate civil aviation and ensure the safety of air navigation within Australia, with the overarching objective of safeguarding the public from the risks associated with civil aviation. The Act provides the legal framework for the Civil Aviation Safety Authority (CASA) to enforce safety regulations, including the issuance of airworthiness directives (ADs) to maintain the continuing airworthiness of aircraft and aeronautical products. ADs are legislative instruments that mandate specific actions to address identified safety issues, and they are issued in accordance with both national and international aviation safety standards, including Annex 8 of the Convention on International Civil Aviation. The Act authorises CASA to cancel existing ADs if the conditions that necessitated their issuance no longer exist, as demonstrated in the case of the cancellation of AD/LTS/3 for AlliedSignal (Lycoming) LTS 101 series turbine engines. This cancellation was made in accordance with the legislative authority granted under section 84A(2) of the Act, reflecting Australia's commitment to international safety standards and the efficient management of civil aviation safety regulations.
Scope and Application
The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, establishes a framework for ensuring the safety of air navigation in Australia. Under this Act, the Civil Aviation Safety Authority (CASA) is empowered to issue airworthiness directives (ADs) as required to maintain the safety of aircraft types registered in Australia. These ADs are legislative instruments and must comply with the legislative requirements outlined in the Legislative Instruments Act 2003. The ADs are a crucial mechanism for ensuring that aircraft types remain airworthy, aligning with the responsibilities of the State of Design and the State of Registry as outlined in Annex 8 to the Convention on International Civil Aviation. CASA, as the national airworthiness authority, is responsible for evaluating and issuing these directives to mandate necessary safety measures. The issuance and cancellation of these directives are integral to maintaining the safety standards of Australian civil aviation, and the process is conducted in accordance with the legislative framework, ensuring that any changes are appropriately communicated and implemented.
Key Provisions
The Civil Aviation Act 1988, as supplemented by the Civil Aviation Safety Regulations 1998, provides the legal framework for the issuance and management of airworthiness directives (ADs). Section 98 of the Act empowers the Governor-General to enact regulations necessary for the safety of air navigation, while regulation 39.001 of the 1998 Regulations allows the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products. It is important to note that under subregulation 39.001(5), ADs are considered disallowable instruments under section 46A of the Acts Interpretation Act 1901, and as such, they are legislative instruments (section 6 of the Legislative Instruments Act 2003). These directives are essential for maintaining the continuing airworthiness of aircraft, a responsibility that rests with the State of Design under Annex 8 to the Convention on International Civil Aviation.
Obligations under the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 require the State of Design to provide necessary information to ensure the continuing airworthiness of an aircraft type, while the State of Registry must develop or adopt requirements to maintain the airworthiness of individual aircraft. When a State of Design issues an AD, CASA must assess the information and, if appropriate, issue an Australian AD to enforce the requirements. This ensures that Australian-registered aircraft comply with international safety standards. For example, CASA assessed and subsequently cancelled Australian AD/LTS/3 affecting AlliedSignal (Lycoming) LTS 101 series turbine engines, which will become effective on 27 August 2009, as the unsafe condition no longer exists.
Under the Civil Aviation Act 1988, CASA is required to issue ADs that reflect international obligations and safety standards. The cancellation of AD/LTS/3 without the need for a replacement AD is a direct result of Australia’s adherence to the Convention on International Civil Aviation. It is noteworthy that no consultation with the Australian public was necessary for this AD cancellation, as determined by the Office of Best Practice Regulation, which found that ADs do not require a Regulatory Impact Statement. This decision was made by the Manager, Future Technology and Regulatory Trends, in the Standards Development and Future Technology Division, on behalf of CASA, in accordance with subsection 84A(2) of the Act.
In terms of consequences, any failure to comply with ADs can result in severe civil and criminal penalties. Non-compliance with an AD may lead to the aircraft being deemed unairworthy, which can result in grounding of the aircraft and potential legal action against the operator. The maximum penalties for contravening these regulations can include substantial fines and imprisonment, reflecting the critical nature of air safety and the importance of adhering to ADs. CASA enforces these regulations rigorously to ensure that all aircraft operating in Australian airspace meet the necessary safety standards.