AD/AL 250/87 - Containment Ring

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Legislation au F2005L01741 In force Legislative Instrument

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CIVIL AVIATION ACT 1988

CIVIL AVIATION 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 US FAA has issued AD 2005-10-13 affecting Rolls Royce 250 series engines.  The US is the State of Design for this engine series.  CASA has assessed this AD and has issued Australian AD/AL 250/87, which will become effective on 4 August 2005.

As this AD is issued because of Australia’s obligations under Convention on International Civil Aviation, and because it is issued in response to an AD raised by the relevant State of Design, no consultation of the Australian public has taken place on this AD.  The Office of Regulatory Review has determined that ADs do not require a Regulatory Impact Statement.

The AD has been made by the Section Head - Systems, Airworthiness Standards Branch, Standards Division, on behalf of CASA, in accordance with subsection 84A (2) of the Act.

Overview

The Civil Aviation Act 1988 was enacted to provide a comprehensive framework for the regulation of civil aviation in Australia, addressing various aspects of aviation safety, operations, and administration. This Act empowers the Governor-General to make regulations necessary for the safety of air navigation, as seen in the issuance of airworthiness directives under section 98. These directives are integral in ensuring the continuing airworthiness of aircraft, aligning with international standards set forth by the International Civil Aviation Organization (ICAO). The Civil Aviation Safety Regulations 1998 further detail the mechanisms through which these directives are issued and managed, ensuring compliance with both national and international obligations. The problem or gap this legislation addresses includes the need for a robust, standardised approach to maintaining the airworthiness of aircraft operating within Australia, reflecting Australia’s commitments under international aviation conventions. The Act provides the legislative foundation upon which the Civil Aviation Safety Authority (CASA) operates to enforce safety standards and regulatory compliance, ultimately safeguarding the public and ensuring the integrity of Australia’s aviation industry.

Scope and Application

The Civil Aviation Act 1988, through regulation 39.001 of the Civil Aviation Safety Regulations 1998, empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specified types of aircraft or aeronautical products. These directives, which are legislative instruments under the Legislative Instruments Act 2003, serve to ensure the continuing airworthiness of aircraft and aeronautical products in line with the obligations under the Convention on International Civil Aviation. The geographic reach of these regulations extends nationally and internationally, aligning with Australia's commitments under the Convention, which mandates that States of Design maintain and communicate information necessary for continuing airworthiness. States of Registry, including CASA, must implement these directives to maintain compliance with international standards. The ADs issued by CASA are responses to ADs issued by the State of Design, such as the US FAA, and are not subject to public consultation or the requirement for a Regulatory Impact Statement. This framework ensures that all aircraft registered in Australia meet the necessary safety standards as determined by international and national regulatory authorities.

Key Provisions

The Civil Aviation Act 1988, along with the Civil Aviation Regulations 1998, sets forth the framework for issuing airworthiness directives (ADs) (s.98, 39.001). An AD is a legislative instrument under the Legislative Instruments Act 2003 (s.6) and is a disallowable instrument according to the Acts Interpretation Act 1901 (s.46A). These directives are critical for maintaining the continuing airworthiness of aircraft and aeronautical products. The State of Design holds primary responsibility for the continuing airworthiness of an aircraft type, and must share necessary information with States of Registry, as outlined in Annex 8 to the Convention on International Civil Aviation. In Australia, the Civil Aviation Safety Authority (CASA) is tasked with assessing these directives and, when necessary, issuing Australian ADs to enforce the requirements set by the State of Design. Under the Civil Aviation Regulations 1998, CASA is empowered to issue ADs for specific types of aircraft or aeronautical products (39.001). When a State of Design issues an AD, CASA must review and, if deemed necessary, issue a corresponding Australian AD. This ensures that Australian-registered aircraft comply with international safety standards. For instance, the US Federal Aviation Administration (FAA) issued AD 2005-10-13 for Rolls Royce 250 series engines, with the US being the State of Design. CASA evaluated this directive and subsequently issued Australian AD/AL 250/87, which became effective on 4 August 2005. The obligations imposed by the Act and the Regulations require CASA to maintain the continuing airworthiness of aircraft registered in Australia. This includes assessing and, if necessary, issuing ADs that reflect the requirements of the relevant State of Design. For example, CASA must act on ADs issued by the FAA for engines used in Australian aircraft to ensure these engines meet the necessary safety standards. The State of Registry, in this case, Australia, must also develop or adopt requirements to ensure the continuing airworthiness of its registered aircraft. This involves closely monitoring and complying with ADs from the States of Design and ensuring that all relevant safety measures are implemented. Failure to comply with ADs can result in serious consequences. The Act and Regulations impose strict obligations on aircraft operators and owners to adhere to ADs, and non-compliance can lead to civil or criminal penalties. For example, if an aircraft is operated without complying with an AD, the operator or owner could face significant fines, and in severe cases, criminal charges. The exact penalties depend on the nature and severity of the breach, but they underscore the importance of adhering to ADs to ensure the safety of air navigation. The regulatory framework is designed to enforce compliance rigorously to protect public safety and maintain the integrity of international aviation standards.

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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.