AD/ECUREUIL/5 - Tail Rotor Control Fixed Plate - Inspection of Self Aligning Bearing - CANCELLED

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Legislation au F2009L02822 Not in force Legislative Instrument

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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, the Civil Aviation Safety Authority (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.

CASA or its predecessors issued AD/ECUREUIL/5 affecting Eurocopter AS350 helicopters.  CASA has reviewed this AD and as a result has cancelled it.  The cancellation will become effective on 30 July 2009.  No replacement AD is required.

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, Airframes and Structures in the Airworthiness Engineering Group, on behalf of CASA, in accordance with subsection 84A (2) of the Act.

Overview

The Civil Aviation Act 1988 is a foundational piece of legislation in Australia designed to ensure the safety of civil aviation and air navigation. Enacted by the Australian Parliament, the Act empowers the Governor-General to establish regulations in the interests of safety, as demonstrated by the Civil Aviation Safety Regulations 1998. These regulations, among other provisions, allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) that are essential for maintaining the continuing airworthiness of aircraft and aeronautical products. The ADs are legislative instruments that align with international standards under Annex 8 of the Convention on International Civil Aviation, which places the responsibility for airworthiness on the State of Design and the State of Registry. The Civil Aviation Safety Regulations 1998, under regulation 39.001(5), classify ADs as disallowable instruments. The cancellation of a particular AD, such as the one affecting Eurocopter AS350 helicopters, is a result of Australia's adherence to international obligations and does not require public consultation or a Regulatory Impact Statement. The AD cancellation has been authorised by the Manager, Airframes and Structures in the Airworthiness Engineering Group, on behalf of CASA, in line with the Act’s provisions.

Scope and Application

The Civil Aviation Act 1988, together with the Civil Aviation Safety Regulations 1998, provides the framework for issuing airworthiness directives (ADs) that are integral to the safety of air navigation in Australia. Specifically, under section 98 of the Civil Aviation Act, the Governor-General is empowered to make regulations for the purposes of the Act, and regulation 39.001 of the Civil Aviation Safety Regulations 1998 authorises the Civil Aviation Safety Authority (CASA) to issue ADs for particular kinds of aircraft or aeronautical products. These ADs are legislative instruments and are subject to disallowance as per section 46A of the Acts Interpretation Act 1901. CASA, acting under the authority of the Act, has the responsibility to ensure the continuing airworthiness of aircraft registered in Australia, in line with the requirements set out in Annex 8 to the Convention on International Civil Aviation. Consequently, this legislation applies to all entities involved in the design, registration, and operation of aircraft within Australia, including aircraft manufacturers, operators, and regulatory bodies. The jurisdictional reach of this Act is national, encompassing all aircraft within Australian territory, and extends to harmonising with international civil aviation standards set by the International Civil Aviation Organization (ICAO).

Key Provisions

The Civil Aviation Safety Regulations 1998, under regulation 39.001, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specified types of aircraft or aeronautical products (s. 39.001(5)). These directives, which are considered legislative instruments under the Legislative Instruments Act 2003, serve to ensure the continuing airworthiness of aircraft and aeronautical products in accordance with the Civil Aviation Act 1988 and the Convention on International Civil Aviation. The State of Design, which refers to the country where the aircraft is designed, holds the primary responsibility for ensuring the continuing airworthiness of the aircraft type, and must furnish necessary information to the State of Registry, which is responsible for the individual aircraft. The obligations under these regulations include the State of Design providing continuous airworthiness information to the State of Registry, which must then develop or adopt requisite requirements to maintain the aircraft's airworthiness. CASA, as the regulatory authority, is tasked with issuing ADs to ensure compliance with these obligations. The cancellation of an AD, as in the case of AD/ECUREUIL/5 concerning Eurocopter AS350 helicopters, is a significant regulatory action. The authority to cancel an AD, in accordance with subsection 84A(2) of the Act, is vested in CASA and its predecessors, demonstrating the regulatory flexibility available to address safety concerns effectively. The Civil Aviation Safety Regulations 1998 and the Civil Aviation Act 1988 establish a framework within which CASA operates, ensuring that airworthiness directives are issued and managed in the interests of safety. CASA must ensure that any issued ADs are in line with international standards and obligations, such as those stipulated in Annex 8 of the Convention on International Civil Aviation. The cancellation of an AD, such as AD/ECUREUIL/5, due to compliance with international obligations, reflects the importance of adhering to global aviation safety standards. There are no specific offences, penalties, or civil/criminal consequences outlined in the text for the issuance or cancellation of ADs. However, the overarching regulatory framework within which CASA operates suggests that non-compliance with airworthiness directives could lead to significant penalties under the Civil Aviation Act 1988. These could include fines or other enforcement actions for operators who fail to comply with ADs, thereby potentially compromising the safety of air navigation. The Civil Aviation Safety Regulations 1998 provide the legal basis for CASA to enforce compliance, ensuring that all stakeholders adhere to the safety standards set forth in the ADs.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.