AD/HU 269/70 - Main Rotor Thrust Bearing P/N 269A5050-73 - Inspection - CANCELLED

Overview

The Civil Aviation Act 1988, enacted by the Commonwealth Parliament, establishes the framework for civil aviation safety in Australia, addressing gaps in the regulation of air navigation safety and airworthiness. The Act empowers the Governor-General to create regulations that serve the interests of safety in air navigation. Under this Act, the Civil Aviation Safety Regulations 1998 were established, allowing the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain types of aircraft or aeronautical products. These directives are legislative instruments that mandate continuing airworthiness requirements as per international conventions, particularly Annex 8 of the Convention on International Civil Aviation, which designates the State of Design as responsible for the ongoing airworthiness of aircraft types. Consequently, CASA, as Australia's national airworthiness authority, must respond to ADs issued by other countries' authorities by assessing the information and issuing corresponding Australian ADs when necessary. This regulatory approach ensures that Australian aviation safety standards align with international obligations and practices.

Scope and Application

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the framework within which airworthiness directives (ADs) are issued to ensure the safety of air navigation in Australia. Under section 98 of the Civil Aviation Act 1988, the Governor-General has the authority to make regulations in the interests of safety, and regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue ADs for specific kinds of aircraft or aeronautical products. These ADs are considered legislative instruments under the Legislative Instruments Act 2003. The State of Design holds primary responsibility for the continuing airworthiness of an aircraft type, and must share necessary information with the State of Registry to ensure compliance with safety standards. In Australia, CASA, as the national airworthiness authority, is responsible for assessing information from the State of Design and issuing corresponding ADs to enforce airworthiness requirements. This process is governed by international standards outlined in Annex 8 to the Convention on International Civil Aviation, ensuring a consistent approach to air safety across ICAO Contracting States. The issuance, assessment, and cancellation of ADs are critical mechanisms to maintain the safety and airworthiness of aircraft within Australia.

Key Provisions

The key provisions of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 detail the mechanisms by which airworthiness directives (ADs) are issued and managed, focusing on safety and compliance with international standards. Section 98 of the Civil Aviation Act 1988 empowers the Governor-General to create regulations for the Act’s purposes, specifically ensuring the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 mandates that the Civil Aviation Safety Authority (CASA) can issue ADs for specific types of aircraft or aeronautical products, and these ADs are considered disallowable instruments under section 46A of the Acts Interpretation Act 1901. As legislative instruments, these ADs are subject to the Legislative Instruments Act 2003. The obligations imposed by the Act and the Regulations include the responsibility of the State of Design to ensure the continuing airworthiness of an aircraft type and provide necessary information to the States of Registry, as per Annex 8 to the Convention on International Civil Aviation. The State of Registry is required to develop or adopt requirements ensuring the continuing airworthiness of aircraft within its jurisdiction. CASA, as Australia’s national airworthiness authority, must assess information from the State of Design and issue Australian ADs if appropriate. This process was exemplified in the issuance and subsequent cancellation of AD/HU 269/70 for Schweizer (Hughes) 269 series Helicopters, which was cancelled on 7 May 2009 due to the elimination of the unsafe condition without the need for a replacement AD. In terms of regulatory compliance and public consultation, the cancellation of AD/HU 269/70 did not require consultation with the Australian public because it was due to international obligations under the Convention on International Civil Aviation. The Office of Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement. The AD was issued 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. The consequences for non-compliance with ADs can be severe, involving both civil and criminal penalties. Breaches of ADs can lead to enforcement actions against individuals and organisations, including fines and imprisonment, depending on the severity of the breach. The specific penalties are outlined in the Civil Aviation Act 1988 and associated regulations, with the maximum penalties varying based on the nature and extent of the violation. It is essential for all stakeholders to adhere to ADs to maintain the highest safety standards in air navigation.