AD/B737/304 - Flight Deck Door Wiring Looms

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2007L02134 In force Legislative Instrument

Legislation content

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 United States FAA has issued AD 2007-10-12 affecting Boeing 737 model aircraft.  The United States is the State of Design for these types.  CASA has assessed this AD and has issued Australian AD/B737/304, which will become effective on 2 August 2007.

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 Acting Manager, New Technologies and Systems, 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, enacted by the Parliament of Australia, aims to ensure the safety and efficiency of civil aviation. This legislation provides the framework for the regulation of civil aviation in Australia, addressing the need for a cohesive and comprehensive approach to aviation safety and operations. The Act empowers the Governor-General to make regulations that serve the interests of safe air navigation, with specific provisions allowing the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) under regulation 39.001 of the Civil Aviation Safety Regulations 1998. This mechanism allows CASA to mandate the necessary requirements for the continuing airworthiness of aircraft registered in Australia, aligning with international standards and obligations under the Convention on International Civil Aviation. The policy objective is to ensure that Australian aviation remains compliant with international safety standards, thereby enhancing the safety of air navigation.

Scope and Application

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 apply to aircraft registered in Australia and are instrumental in ensuring the safety and airworthiness of these aircraft. Specifically, the Act empowers the Governor-General to enact regulations that govern the safety of air navigation, with the Civil Aviation Safety Regulations providing further detail on how these regulations are to be implemented. Regulation 39.001 of the Civil Aviation Safety Regulations allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives for specific types of aircraft or aeronautical products, thereby mandating compliance with safety standards set by the State of Design. These directives are legally binding and must be adhered to by the State of Registry, which is responsible for the ongoing airworthiness of individual aircraft. This ensures that all aircraft operating within Australian airspace meet internationally recognised safety standards. The scope of these regulations is national, with the State of Registry ensuring compliance with international conventions, such as Annex 8 to the Convention on International Civil Aviation. When a State of Design issues an airworthiness directive, CASA evaluates the directive and, if necessary, issues a corresponding Australian airworthiness directive to enforce the same safety measures. For example, in response to the United States Federal Aviation Administration's AD 2007-10-12 for Boeing 737 model aircraft, CASA issued Australian AD/B737/304, effective from 2 August 2007. This process ensures that international safety standards are uniformly applied across the Australian aviation industry. Given that these directives are issued in response to international obligations and are not subject to public consultation, they are considered legislative instruments under the Legislative Instruments Act 2003.

Key Provisions

The Civil Aviation Act 1988 (section 98) empowers the Governor-General to create regulations aimed at ensuring the safety of air navigation. Under this authority, the Civil Aviation Safety Regulations 1998 (regulation 39.001) allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. Section 39.001(5) further clarifies that an AD is a disallowable instrument under the Acts Interpretation Act 1901 and thus constitutes a legislative instrument according to the Legislative Instruments Act 2003. These ADs are pivotal for maintaining the continuing airworthiness of aircraft, as outlined in Annex 8 of the Convention on International Civil Aviation. The obligations imposed by the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 on parties and entities are significant. The State of Design, which is responsible for the initial design of the aircraft, must provide necessary information to ensure the continuing airworthiness of the aircraft type. The State of Registry, in this case, CASA as Australia’s national airworthiness authority, must evaluate this information and, if deemed necessary, issue an Australian AD to enforce the requirements of the State of Design. This dual responsibility ensures that aircraft on the Australian Register meet safety standards set by both the designing and the regulating states. Failure to comply with an airworthiness directive can lead to severe consequences. While the specific penalties for non-compliance are not detailed in the provided text, the issuance of ADs is a critical mechanism for enforcing airworthiness standards. Non-compliance with these directives can result in safety risks, which could lead to civil or criminal penalties, depending on the severity of the breach and the impact on aviation safety. The legislative framework supports stringent enforcement to maintain high safety standards within the aviation sector. In summary, the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 establish a robust system for issuing airworthiness directives, ensuring that aircraft meet necessary safety standards. The responsibilities of both the State of Design and the State of Registry are clearly defined, with CASA playing a crucial role in enforcing these directives in Australia. Non-compliance with these regulations can have serious repercussions, highlighting the importance of adhering to the directives to maintain aviation safety.

Legal classification tags

Area of Law
Aviation Law
Instrument
Regulation
Concepts
Definitions & Interpretation
Regulatory Standards
Compliance Obligations

Interactions

Authorises

All Versions

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.