AD/ECUREUIL/107 Amdt 2 - Stabilisers - Upper and Lower Vertical Fin Spars - CANCELLED

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Legislation au F2009L00674 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, 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.

EASA has issued AD 2009-0030 affecting Eurocopter AS 350 model helicopters.  EASA acts for France, the State of Design for this type.  CASA has assessed this AD and as a result has cancelled Australian AD/ECUREUIL/107 Amdt 2.  The cancellation will become effective on 26 February 2009.  The requirements are now contained in AD/ECUREUIL/131 Amendment 1.

As this AD has been cancelled because of Australia’s obligations under the Convention on International Civil Aviation, and because it is cancelled in response to an AD raised by the relevant State of Design, 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 & 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 was enacted to provide for the regulation of civil aviation and to establish the Civil Aviation Safety Authority (CASA) as the national authority responsible for ensuring the safety and efficiency of civil aviation in Australia. The Act addresses the need for a comprehensive legal framework governing civil aviation, ensuring that all aspects of air navigation, aircraft registration, and airworthiness are managed effectively to maintain safety and public confidence. The Australian Parliament enacted this legislation to establish a robust system for the oversight of civil aviation activities within the country. The policy objective of the Act is to safeguard the public by implementing stringent safety regulations and standards in civil aviation. The Civil Aviation Safety Regulations 1998 complement the Act by detailing the specific requirements and procedures necessary to enforce the provisions of the Act. Regulation 39.001 of these regulations empowers CASA to issue airworthiness directives (ADs) for certain kinds of aircraft or aeronautical products, which are critical in maintaining the continuing airworthiness of aircraft. These ADs are legislative instruments subject to disallowance, as stipulated under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The ADs are issued in accordance with international standards, particularly those outlined in Annex 8 to the Convention on International Civil Aviation, which places the responsibility for continuing airworthiness on the State of Design and the State of Registry. CASA, as Australia’s national airworthiness authority, must issue Australian ADs when necessary to ensure compliance with international standards and to address safety concerns specific to aircraft registered in Australia.

Scope and Application

The Civil Aviation Act 1988, alongside the Civil Aviation Safety Regulations 1998, empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) to ensure the safety of air navigation. These regulations apply to all aircraft and aeronautical products within Australia's jurisdiction, thereby impacting various entities such as aircraft manufacturers, operators, and maintenance organisations. The ADs mandate compliance with specific safety standards, which are aligned with the international standards set forth in Annex 8 of the Convention on International Civil Aviation. The ADs extend to any aircraft registered in Australia, regardless of their location, thus covering both domestic and international operations when the aircraft are within Australian airspace or are operated by Australian entities. Notably, ADs are legislative instruments and must adhere to the disallowable instrument provisions of the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The issuance and cancellation of ADs, such as the example provided where CASA cancelled AD/ECUREUIL/107 Amdt 2 in response to an EASA directive, are conducted without public consultation as they are based on international obligations and assessments by the relevant national airworthiness authority.

Key Provisions

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 together provide a framework for the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA). Section 98 of the Act allows the Governor-General to make regulations for the safety of air navigation, and regulation 39.001 of the Regulations empowers CASA to issue ADs for specific types of aircraft or aeronautical products. These ADs are legislative instruments, as stipulated in section 6 of the Legislative Instruments Act 2003 and are subject to disallowance under section 46A of the Acts Interpretation Act 1901. Under the Civil Aviation Safety Regulations, CASA is tasked with ensuring the continuing airworthiness of aircraft registered in Australia. This involves assessing airworthiness directives issued by the State of Design—the country where the aircraft type was designed—and determining if Australian ADs are necessary to comply with international standards. For instance, if the European Aviation Safety Agency (EASA) issues an AD for a type of aircraft designed in France, CASA must evaluate this directive and may issue a corresponding Australian AD to enforce the same requirements domestically. In the case of Eurocopter AS 350 model helicopters, CASA has cancelled the previous Australian AD/ECUREUIL/107 Amdt 2 in response to a new EASA directive, and the changes will be implemented under AD/ECUREUIL/131 Amendment 1. The obligations of CASA under the Civil Aviation Act and Regulations include the responsibility to maintain and enforce airworthiness standards. CASA must ensure that any AD issued aligns with international obligations under the Convention on International Civil Aviation, specifically Annex 8, which assigns the State of Design responsibility for continuing airworthiness. Furthermore, CASA is required to communicate changes in airworthiness directives to relevant stakeholders, ensuring that all aircraft operating under Australian registration meet the necessary safety standards. The process of issuing or cancelling ADs must be carried out in accordance with subsection 84A(2) of the Civil Aviation Act. Failure to comply with airworthiness directives can lead to significant legal and operational consequences. Under the Civil Aviation Act 1988, non-compliance with an AD can result in severe penalties, including fines and imprisonment. The exact penalties may vary depending on the severity of the breach and the specific provisions of the Act and Regulations. CASA has the authority to enforce these regulations, and aircraft operators found in breach of ADs can face significant civil and criminal liabilities. The rigorous enforcement of ADs is critical to maintaining the high safety standards required in the aviation industry.

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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.