AD/B747/328 - Fuselage Frame Joints at BS 1120 and 1140

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Legislation au F2005L01046 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 FAA has issued AD 2005-05-08 affecting Boeing Model 747 aircraft.  USA is the State of Design for this type.  CASA has assessed this AD and has issued Australian AD/B747/328, which will become effective on 9 June 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 - Airframes, 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 to provide a legal framework for civil aviation in Australia, was established to ensure the safety and efficiency of air navigation and aircraft operation. The Act empowers the Governor-General to make regulations necessary for the safety of air navigation, as seen in the Civil Aviation Safety Regulations 1998. The issuance of airworthiness directives (ADs) under regulation 39.001 is a legislative instrument that facilitates the implementation of safety measures in response to identified issues with aircraft or aeronautical products. These directives are critical for maintaining the continuing airworthiness of aircraft as per international conventions, such as Annex 8 to the Convention on International Civil Aviation, which mandates that States of Design and Registry take responsibility for ensuring aircraft safety. The Civil Aviation (Safety) Regulations 1998 further clarify that ADs issued by the Civil Aviation Safety Authority (CASA) are disallowable instruments, underscoring their regulatory importance. This legislative structure ensures that Australia adheres to international standards while maintaining stringent domestic safety protocols.

Scope and Application

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 together establish a framework for the regulation of airworthiness in Australia, with the Civil Aviation Safety Authority (CASA) as the national airworthiness authority responsible for implementing and enforcing these regulations. Specifically, regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers CASA to issue airworthiness directives (ADs) for kinds of aircraft or aeronautical products, which are legislative instruments subject to disallowance under section 46A of the Acts Interpretation Act 1901. These directives are intended to ensure the continuing airworthiness of aircraft and are issued in compliance with Australia’s obligations under the Convention on International Civil Aviation. The State of Design holds primary responsibility for the continuing airworthiness of an aircraft type, while the State of Registry, in this case CASA, is responsible for the airworthiness of individual aircraft registered in Australia. This means that when the Federal Aviation Administration (FAA) issues an AD for a type of aircraft registered in Australia, CASA must assess this information and, if appropriate, issue an Australian AD to mandate the requirements. The process of issuing these directives is streamlined to ensure rapid compliance with international standards, and it does not typically involve public consultation or a Regulatory Impact Statement.

Key Provisions

The key operative sections of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products under regulation 39.001(5) (Civil Aviation Safety Regulations 1998). These directives are issued to ensure the continuing airworthiness of aircraft and are governed under the broader framework of Annex 8 to the Convention on International Civil Aviation. The State of Design, which in this case is the United States, has the responsibility to provide necessary information to ensure the airworthiness of a particular aircraft type. CASA, as Australia's national airworthiness authority, must assess this information and issue corresponding ADs when necessary to comply with international obligations. The obligations imposed on CASA under this Act and its regulations are to assess airworthiness directives issued by the State of Design and to issue corresponding Australian ADs when appropriate. This process ensures that all aircraft registered in Australia meet the required safety standards and comply with international airworthiness regulations. CASA must also ensure that these directives are issued in accordance with the legislative framework and do not require additional consultation or a Regulatory Impact Statement, as determined by the Office of Regulatory Review. Breach of the provisions set out in these regulations can lead to serious consequences. The Civil Aviation Act 1988 and Civil Aviation Safety Regulations 1998 do not explicitly state specific offences or penalties for non-compliance with airworthiness directives. However, failing to comply with these directives could result in the aircraft being deemed unairworthy, which could lead to grounding of the aircraft and potential legal actions against the operator. Additionally, under broader aviation safety laws, there could be criminal or civil penalties for operating an aircraft that does not meet airworthiness standards. The exact penalties would depend on the nature and severity of the breach, as outlined in other relevant aviation safety legislation.

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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.