AD/B717/20 - Electrical Bonding

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Legislation au F2007L01050 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 United States has issued AD 2007-05-06 affecting Boeing 717-200 series aircraft.  The United States is the State of Design for these types.  CASA has assessed this AD and has issued Australian AD/B717/20, which will become effective on 10 May 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 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 Commonwealth Parliament, addresses the overarching framework for the regulation of civil aviation in Australia, with a focus on ensuring safety and efficiency in air navigation. Under this Act, the Civil Aviation Safety Regulations 1998 provide the means for the issuance of airworthiness directives (ADs), which are legislative instruments used to mandate safety standards for specific types of aircraft or aeronautical products. These regulations empower the Civil Aviation Safety Authority (CASA) to issue ADs that align with international standards, particularly under Annex 8 to the Convention on International Civil Aviation, where the State of Design has the responsibility to provide necessary information for the continuing airworthiness of aircraft types. In the case of ADs originating from other States of Design, such as the United States, CASA evaluates and, if necessary, issues corresponding Australian ADs to ensure compliance with international obligations and domestic safety standards. This process underscores the critical role of CASA in maintaining the safety and airworthiness of aircraft registered in Australia, as well as the legislative mechanism through which these safety directives are implemented.

Scope and Application

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the legal framework for the issuance of airworthiness directives (ADs) in Australia, specifically under regulation 39.001. These regulations enable the Civil Aviation Safety Authority (CASA) to issue ADs concerning types of aircraft or aeronautical products to ensure the safety of air navigation. ADs serve as a critical mechanism for maintaining the continuing airworthiness of aircraft and are issued in accordance with Annex 8 to the Convention on International Civil Aviation, which delineates the responsibilities of the State of Design and the State of Registry. When an AD is issued by the State of Design, such as the United States for Boeing 717-200 series aircraft, CASA is obligated to assess and, if necessary, issue a corresponding Australian AD to enforce the requirements. These ADs are legislative instruments, subject to disallowance and review under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003, respectively. Given the international nature of these directives, public consultation is generally not required, and they do not necessitate a Regulatory Impact Statement. The ADs are issued by CASA officials, under the authority conferred by the Civil Aviation Act 1988, ensuring compliance with both national and international aviation safety standards.

Key Provisions

The Civil Aviation Act 1988, and particularly section 98, provides the foundation for the issuance of airworthiness directives (ADs) under the Civil Aviation Safety Regulations 1998 (section 39.001). This regulatory framework empowers the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products. Section 39.001(5) of the Civil Aviation Safety Regulations 1998 further clarifies that ADs are disallowable instruments under section 46A of the Acts Interpretation Act 1901, and as such, they are legislative instruments in accordance with section 6 of the Legislative Instruments Act 2003. ADs are pivotal in ensuring the continuing airworthiness of aircraft types, with the State of Design bearing primary responsibility for this under Annex 8 to the Convention on International Civil Aviation. The obligations imposed by the Civil Aviation Safety Regulations 1998 on the State of Registry, such as Australia, include the duty to develop or adopt requirements that ensure the continuing airworthiness of aircraft registered within its territory. When the State of Design issues an AD for a type of aircraft registered in Australia, CASA must evaluate the information provided by the State of Design. If deemed necessary, CASA must then issue an Australian AD to enforce the requirements set forth by the State of Design. This process was exemplified when CASA issued Australian AD/B717/20 in response to AD 2007-05-06 issued by the United States for Boeing 717-200 series aircraft. As these ADs are mandated by international obligations under the Convention on International Civil Aviation and are in reaction to ADs from the relevant State of Design, there is no requirement for public consultation on such ADs. The legislative and regulatory framework also outlines the potential consequences for non-compliance with ADs. While the specific penalties and enforcement mechanisms are not detailed in the provided text, it is common for non-compliance with airworthiness directives to result in significant civil or criminal penalties. These can include fines, suspension or revocation of aircraft operating certificates, or even criminal charges in cases of gross negligence or willful disregard of safety regulations. The seriousness of these consequences underscores the critical importance of adhering to ADs to ensure the safety and airworthiness of aircraft operating within Australia.

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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.