AD/RB211/25 Amdt 1 - Cold Stream Nozzle

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Legislation au F2005L00623 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 UK CAA issued AD 005-01-2000 affecting Rolls Royce RB 211 series engines aircraft, in 2000.  The UK is the State of Design for this type.  As a result of a request from industry, CASA has amended the equivalent Australian AD to AD/RB211/25 Amendment 1.  The amended AD, AD/RB 211/25 Amendment 1, will become effective on 14 April 2005.  This AD cancels and replaces the previous issue.

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, enacted by the Commonwealth Parliament, establishes the legal framework for civil aviation in Australia and aims to ensure the safety and efficiency of air navigation. The Act empowers the Governor-General to make regulations in the interests of safety, with the Civil Aviation Safety Regulations 1998 outlining specific regulatory requirements. Under this legislative scheme, the Civil Aviation Safety Authority (CASA) is authorised to issue airworthiness directives (ADs), which are legislative instruments used to mandate safety requirements for aircraft and aeronautical products. These ADs are issued in accordance with international obligations under the Convention on International Civil Aviation and in response to directives from the relevant State of Design, ensuring the continuing airworthiness of aircraft registered in Australia. This approach facilitates harmonised safety standards and compliance with international aviation regulations.

Scope and Application

The Civil Aviation Act 1988 and Civil Aviation Regulations 1998 provide the legislative framework for issuing airworthiness directives (ADs) in Australia, which are critical for ensuring the continuing airworthiness of aircraft. Under the Act, the Governor-General has the authority to make regulations to safeguard air navigation, while regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products. These ADs are considered legislative instruments under the Acts Interpretation Act 1901 and Legislative Instruments Act 2003. The ADs align with international obligations under Annex 8 to the Convention on International Civil Aviation, where the State of Design holds responsibility for an aircraft type's continuing airworthiness, and the State of Registry must ensure individual aircraft meet airworthiness standards. CASA, acting on behalf of Australia, evaluates ADs issued by the State of Design and, if necessary, issues corresponding Australian ADs to enforce compliance. This process is exemplified in the amendment of the Australian AD for Rolls Royce RB 211 series engines, which aligns with an AD issued by the UK Civil Aviation Authority. The ADs are issued in adherence to international agreements and do not require public consultation or a Regulatory Impact Statement as determined by the Office of Regulatory Review.

Key Provisions

The Civil Aviation Act 1988 and Civil Aviation Regulations 1998 provide the legislative framework for the issuance of airworthiness directives (ADs). Under section 98 of the Act, the Governor-General can make regulations for the safety of air navigation, and regulation 39.001 of the Regulations allows the Civil Aviation Safety Authority (CASA) to issue ADs for kinds of aircraft or aeronautical products. This process is integral to maintaining the safety and airworthiness of aircraft operating within Australia. Section 6 of the Legislative Instruments Act 2003 confirms that ADs are legislative instruments, subject to disallowance under section 46A of the Acts Interpretation Act 1901. The responsibilities under these regulations are clear. The State of Design holds the primary responsibility for the continuing airworthiness of an aircraft type, as stipulated in Annex 8 to the Convention on International Civil Aviation. This includes providing necessary information to ensure the airworthiness of the aircraft type to the State of Registry. The State of Registry, in turn, must develop or adopt requirements to ensure the continuing airworthiness of aircraft registered within its jurisdiction. When an AD is issued by the State of Design, CASA, acting as Australia's national airworthiness authority, must evaluate this information and, if appropriate, issue an Australian AD to enforce the requirements specified by the State of Design. Failure to comply with ADs can result in severe consequences. Under the Civil Aviation Act 1988, breaches of ADs can lead to civil penalties, including fines, as well as criminal penalties for more serious offences. The maximum penalties for breaches can vary, but they are intended to ensure compliance with safety regulations and to protect the public from potential hazards. Given the critical nature of airworthiness directives, CASA enforces these regulations rigorously to maintain the high safety standards expected in aviation. In summary, the Civil Aviation Act 1988 and Civil Aviation Regulations 1998 establish a robust framework for issuing and enforcing airworthiness directives, ensuring that both States of Design and Registry uphold their responsibilities for aircraft safety. CASA plays a pivotal role in this process, ensuring that Australian aircraft meet international standards and that any necessary directives are communicated and enforced effectively.

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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.