AD/B747/242 Amdt 1 - Trailing Edge Flap H-11 Bolts

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Legislation au F2009L03338 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.

The US FAA issued AD 2001-03-10, affecting Boeing B747 model aircraft, in 2001.  The USA is the State of Design for this type.  As a result of a request from industry, CASA has amended the equivalent Australian AD to provide information on an approved alternate means of compliance.  The amended AD, AD/B747/242, Amendment 1, will become effective on 2 September 2009.  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 Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement.

 

The AD has been made by the Manager Initial Airworthiness in the Airworthiness and Engineering Branch, on behalf of CASA, in accordance with subsection 84A (2) of the Act.

Overview

The Civil Aviation Act 1988 was enacted to provide a legislative framework for the regulation of civil aviation in Australia, aiming to ensure the safety and efficiency of air navigation. This Act empowers the Governor-General to make regulations in the interests of aviation safety, with the Civil Aviation Safety Regulations 1998 further detailing these regulations. One such regulation, 39.001, allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain types of aircraft or aeronautical products. These ADs are legislative instruments that mandate specific requirements to maintain the airworthiness of aircraft, in line with Australia's obligations under the Convention on International Civil Aviation. The ADs are typically issued in response to directives from the State of Design, ensuring that Australian aircraft comply with international standards. In the case of AD/B747/242, Amendment 1, CASA amended an existing AD in response to a United States Federal Aviation Administration directive for Boeing B747 models, providing an alternate means of compliance. This amendment was made without public consultation, as required by the Legislative Instruments Act 2003, and does not necessitate a Regulatory Impact Statement.

Scope and Application

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 together establish a comprehensive framework for ensuring the safety and continuing airworthiness of aircraft in Australia. Under this legislative regime, the Civil Aviation Safety Authority (CASA) is empowered to issue airworthiness directives (ADs) which are legislative instruments designed to mandate safety improvements and maintenance requirements for specific types of aircraft or aeronautical products. These directives apply to all aircraft registered in Australia and are intended to ensure that the aircraft meet international safety standards, as outlined in Annex 8 of the Convention on International Civil Aviation. The State of Design, typically the country where the aircraft was originally designed, has the primary responsibility for the continuing airworthiness of the aircraft type, while the State of Registry, which in Australia is CASA, must implement the ADs to maintain the airworthiness of individual aircraft registered within its jurisdiction. This regulatory approach ensures that Australian-registered aircraft remain compliant with international safety standards and are subject to appropriate safety oversight.

Key Provisions

The Civil Aviation Act 1988, particularly section 98, empowers the Governor-General to create regulations that serve the safety of air navigation, ensuring that the civil aviation system operates within the highest safety standards. Under regulation 39.001 of the Civil Aviation Safety Regulations 1998, the Civil Aviation Safety Authority (CASA) is authorised to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. This regulatory power is designed to maintain and enhance the safety of aircraft in Australian airspace. Subregulation 39.001(5) clarifies that ADs are disallowable instruments as per section 46A of the Acts Interpretation Act 1901, and hence are legislative instruments under section 6 of the Legislative Instruments Act 2003. The obligations imposed by these regulations are significant. The State of Design, which is responsible for the aircraft's original design, has the primary responsibility for ensuring the continuing airworthiness of an aircraft type. This includes providing necessary information to States of Registry to maintain airworthiness standards. The State of Registry, in this case, CASA, must then assess this information and, if necessary, issue an Australian AD that incorporates the requirements set by the State of Design. This ensures that all aircraft registered in Australia comply with internationally recognised safety standards. The process is designed to be efficient and effective, ensuring that safety measures are uniformly applied across the board. Failure to comply with an AD can have serious legal consequences. While the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 do not explicitly outline penalties for non-compliance in this specific context, general aviation regulations typically impose significant penalties for breaches. Non-compliance with ADs can result in civil penalties, including fines, and potentially criminal charges for individuals or corporations found to be in violation. These penalties are intended to enforce strict adherence to safety regulations and to deter any actions that could compromise the safety of air travel. Given the critical nature of airworthiness, the consequences of non-compliance are severe, underscoring the importance of adhering to these directives.

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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.