AD/B747/205 Amdt 1 - Lower Lobe Fuselage Frames

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Legislation au F2006L01670 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.

The US FAA has issued AD 2006-09-06 affecting Boeing B747 model aircraft.  The USA is the State of Design for this type.  CASA has assessed this AD and has issued Australian AD/B747/205, Amendment 1, which will become effective on 6 July 2006.  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 Manager, Airframes in the Manufacturing, Certification and New Technologies Office, 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 the promotion of air safety in Australia. The Act empowers the Governor-General to make regulations in the interests of the safety of air navigation. One such regulation is the Civil Aviation Safety Regulations 1998, which permit the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain types of aircraft or aeronautical products. This legislative framework is essential in ensuring the continuing airworthiness of aircraft registered in Australia, aligning with Australia's obligations under international agreements such as Annex 8 to the Convention on International Civil Aviation. The AD process facilitates the dissemination of safety-critical information from the State of Design to the State of Registry, thereby enhancing the safety and uniformity of air navigation practices across international borders.

Scope and Application

The Civil Aviation Safety Regulations 1998, pursuant to the Civil Aviation Act 1988, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specified types of aircraft or aeronautical products. These regulations are integral to ensuring the safety of air navigation, as mandated by the Act. The ADs are legislative instruments subject to disallowance under the Acts Interpretation Act 1901 and are consistent with international obligations under Annex 8 of the Convention on International Civil Aviation. The State of Design holds the primary responsibility for the continuing airworthiness of aircraft types, while the State of Registry, in this case CASA for Australia, ensures that national requirements align with international standards. In response to an AD issued by the US Federal Aviation Administration (FAA) for Boeing B747 model aircraft, CASA has issued AD/B747/205, Amendment 1, effective from 6 July 2006, reflecting Australia's commitment to international safety protocols. This AD replaces a previous directive, demonstrating CASA's role in enforcing continuing airworthiness domestically in alignment with international directives. Given the nature of these directives, no public consultation or Regulatory Impact Statement was required.

Key Provisions

The Civil Aviation Safety Regulations 1998 under section 39.001 empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products (39.001(1)). These directives are critical tools for ensuring the continuing airworthiness of aircraft, and they serve as enforceable requirements that must be adhered to by the operators of affected aircraft. An AD, as defined under subregulation 39.001(5), is a disallowable instrument under the Acts Interpretation Act 1901 and is considered a legislative instrument as per the Legislative Instruments Act 2003 (6). This means that ADs have the force of law and must be complied with by the relevant parties. The obligations imposed by these ADs are clear and specific. For instance, the State of Design, which is responsible for the initial airworthiness of a particular aircraft type, must issue ADs to address any safety concerns that arise during the life of the aircraft. The State of Registry, which is the country where the aircraft is registered, must ensure that these ADs are implemented and complied with by aircraft operators within its jurisdiction. In Australia, CASA is the national airworthiness authority and is tasked with assessing ADs issued by the State of Design, such as the US Federal Aviation Administration (FAA) in the case of Boeing B747 model aircraft, and issuing corresponding Australian ADs as necessary (39.001(3)-(5)). The consequences of non-compliance with ADs are serious and can result in significant penalties. Under the Civil Aviation Act 1988, failure to comply with an AD can lead to enforcement actions, including fines and potential criminal charges. The maximum penalties for such offences can be substantial, reflecting the critical importance of adhering to airworthiness directives to maintain the safety of air navigation. CASA has the authority to enforce these directives and take action against non-compliant aircraft operators, ensuring that safety standards are upheld. In summary, the ADs issued under the Civil Aviation Safety Regulations 1998 are integral to the regulatory framework governing airworthiness in Australia. They are issued in response to identified safety concerns and are enforceable by law. Non-compliance can lead to severe penalties, underscoring the importance of adhering to these directives to ensure the safety of air navigation. The process of issuing and enforcing ADs is a collaborative effort between the State of Design, the State of Registry, and CASA, all working together to maintain the highest standards of aviation safety.

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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.