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 Emergency AD 2008-18-51 affecting MD Helicopters, Inc MD 500 and MD 600 series helicopters. The United States is the State of Design for these helicopters. CASA has assessed this AD and has issued Australian AD/HU 369/121, which will become effective on 26 August 2008.
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 and Structures, in the Airworthiness Engineering Group, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988, enacted by the Commonwealth Parliament, was introduced to regulate civil aviation within Australia, ensuring the safety and efficiency of air navigation. The Act empowers the Governor-General to make regulations in the interests of aviation safety, as seen in the Civil Aviation Safety Regulations 1998. Specifically, regulation 39.001 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain aircraft or aeronautical products. These ADs serve as legislative instruments under the Acts Interpretation Act 1901 and are crucial for maintaining the continuing airworthiness of aircraft as mandated by Annex 8 of the Convention on International Civil Aviation. In the case of the United States issuing Emergency AD 2008-18-51 for MD Helicopters, Inc MD 500 and MD 600 series helicopters, CASA assessed the directive and subsequently issued Australian AD/HU 369/121, reflecting Australia’s commitment to international aviation standards.
Scope and Application
The Civil Aviation Safety Regulations 1998, under section 39.001, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) concerning specific types of aircraft or aeronautical products. These ADs are legislative instruments under the Acts Interpretation Act 1901 and are subject to disallowance as stipulated in section 46A of that Act. Furthermore, they are also legislative instruments as per section 6 of the Legislative Instruments Act 2003. The ADs play a crucial role in ensuring the continuing airworthiness of aircraft types as per Annex 8 to the Convention on International Civil Aviation, which mandates the State of Design to provide necessary information to the States of Registry. In Australia, CASA, as the national airworthiness authority, must review and, if deemed appropriate, issue Australian ADs to enforce the requirements of the State of Design. This process is exemplified by CASA's issuance of Australian AD/HU 369/121 in response to the United States FAA's Emergency AD 2008-18-51 for MD Helicopters, Inc MD 500 and MD 600 series helicopters. Given that these directives are a response to international obligations and are issued based on ADs from the relevant State of Design, no public consultation is required. Additionally, the Office of Regulatory Review has determined that such ADs do not necessitate a Regulatory Impact Statement.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide a framework for the issuance of airworthiness directives (ADs). Under section 98 of the Civil Aviation Act 1988, the Governor-General has the authority to make regulations to ensure the safety of air navigation. Specifically, regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products. Furthermore, subregulation 39.001(5) clarifies that an AD is a disallowable instrument as per section 46A of the Acts Interpretation Act 1901, making it a legislative instrument under section 6 of the Legislative Instruments Act 2003.
The obligations imposed by these regulations primarily rest on CASA, as Australia’s national airworthiness authority. CASA must assess any ADs issued by the State of Design and, if necessary, issue corresponding Australian ADs to ensure compliance with the requirements set by the State of Design. For example, the United States Federal Aviation Administration (FAA) issued Emergency AD 2008-18-51 for MD Helicopters, Inc's MD 500 and MD 600 series helicopters. As the State of Design, the US has the responsibility to provide information to maintain airworthiness. CASA has evaluated this directive and issued Australian AD/HU 369/121, which will take effect on 26 August 2008.
Given that ADs are issued in compliance with international obligations under the Convention on International Civil Aviation and in response to directives from the State of Design, they do not require public consultation or a Regulatory Impact Statement. Instead, CASA issues these directives under the authority of subsection 84A(2) of the Act, with the Manager, Airframes and Structures, in the Airworthiness Engineering Group, acting on behalf of CASA.
Failure to comply with the requirements of an AD can result in significant legal and safety consequences. Under the Civil Aviation Act 1988, non-compliance may lead to civil penalties, including fines, as well as potential criminal charges. The severity of these penalties can vary depending on the nature and extent of the non-compliance. For instance, operating an aircraft that does not meet the standards specified in an AD can result in severe penalties, including imprisonment, reflecting the critical importance of adhering to airworthiness directives for maintaining aviation safety.