AD/LYC/117 Amdt 2 - Lycoming Crankshaft Replacement

Overview

The Civil Aviation Act 1988 was enacted to regulate civil aviation in Australia, ensuring the safety and efficiency of air navigation and the operation of aircraft. The Civil Aviation Safety Regulations 1998 were subsequently introduced to provide detailed provisions for the purposes of the Act, particularly focusing on the safety and airworthiness of aircraft. Section 98 of the Act empowers the Governor-General to make regulations in the interests of safety, while regulation 39.001 of the Regulations allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific aircraft or aeronautical products. The ADs are considered legislative instruments under the Legislative Instruments Act 2003. These directives are integral to maintaining the continuing airworthiness of aircraft as mandated by Annex 8 to the Convention on International Civil Aviation, which assigns responsibility to the State of Design for the airworthiness of aircraft types and to the State of Registry for individual aircraft. CASA, acting on behalf of Australia, assesses and issues Australian ADs in response to directives from the State of Design, ensuring compliance with international standards.

Scope and Application

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 apply to entities and individuals involved in civil aviation activities within Australia, encompassing the operation of aircraft and the maintenance of their airworthiness. Under section 98 of the Civil Aviation Act 1988, the Governor-General is empowered to make regulations in the interests of air navigation safety, while regulation 39.001 of the Civil Aviation Safety Regulations 1998 specifically allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain aircraft types and aeronautical products. These ADs are legislative instruments and are crucial for ensuring that aircraft maintain their airworthiness in accordance with international standards, particularly those set forth by the International Civil Aviation Organization (ICAO). The ADs are issued by CASA, Australia's national airworthiness authority, in response to directives from the State of Design or in line with Australia's obligations under international conventions. This regulatory framework does not extend to requiring public consultation or a Regulatory Impact Statement for ADs, given their technical nature and the international obligations that necessitate their issuance.

Key Provisions

The Civil Aviation Safety Regulations 1998, specifically under regulation 39.001, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specified types of aircraft or aeronautical products. This authority stems from section 98 of the Civil Aviation Act 1988, which allows the Governor-General to make regulations for the safety of air navigation. Furthermore, subregulation 39.001(5) clarifies that an AD is a disallowable instrument under the Acts Interpretation Act 1901, thereby categorising it as a legislative instrument under the Legislative Instruments Act 2003. These directives are critical in maintaining the continuing airworthiness of aircraft, a responsibility that falls on both the State of Design and the State of Registry, as outlined in Annex 8 to the Convention on International Civil Aviation. The obligations imposed by the ADs on the parties involved are multifaceted. The State of Design, which is responsible for the type of aircraft, must provide all necessary information to ensure the continuing airworthiness of the aircraft type. This information is typically disseminated through ADs. The State of Registry, which in the case of Australia is CASA, must then assess this information and, if deemed appropriate, issue a corresponding AD for the Australian Register. This ensures that all aircraft registered in Australia comply with the safety standards set forth by the relevant State of Design. In this particular case, CASA amended an existing AD to ensure accurate referencing of future revisions of a bulletin issued by Lycoming Engines, the State of Design for the Lycoming piston engines. Failure to comply with the requirements set forth in an AD can lead to serious consequences. While the specific penalties for non-compliance are not detailed in the provided text, it is clear that non-compliance with ADs can result in significant safety risks, which may be subject to regulatory scrutiny or enforcement actions. These actions could potentially include fines, suspension of airworthiness certificates, or other administrative penalties. The text does mention that no consultation of the Australian public has taken place on this AD, as it is issued due to Australia's obligations under the Convention on International Civil Aviation and in response to an AD raised by the relevant State of Design. The instrument has been determined to be compatible with human rights and freedoms as it sets out purely technical requirements without engaging any applicable rights or freedoms. This conclusion is supported by the Office of Regulatory Review, which found that ADs do not require a Regulatory Impact Statement. The AD in question was made by the Manager, Initial Airworthiness/New Technology and Regulatory Trends, in the Airworthiness and Engineering Branch, on behalf of CASA, in accordance with subsection 94(1) of the Civil Aviation Act 1988. This process ensures that all regulatory actions are taken in line with the legislative framework and international obligations.