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 USA FAA has issued AD 2006-06-16 affecting Lycoming model 360 aircraft engines. USA is the State of Design for Lycoming engines. CASA has assessed this AD and has issued Australian AD/LYC/115, which will become effective on 11 May 2006.
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 was enacted to establish a comprehensive legal framework for civil aviation in Australia, aiming to ensure the safety and efficiency of air navigation within the country. This Act provides the authority for the Civil Aviation Safety Regulations 1998, which govern various aspects of aviation safety, including the issuance of airworthiness directives (ADs). ADs are legislative instruments issued by the Civil Aviation Safety Authority (CASA) under the authority of regulation 39.001, in accordance with section 98 of the Act, to mandate safety requirements for aircraft and aeronautical products. The policy objective of these regulations is to maintain and enhance the safety of air navigation by ensuring that all aircraft and aeronautical products meet the necessary airworthiness standards. The ADs serve as a critical mechanism for communicating safety-related information and requirements to aircraft operators, manufacturers, and other stakeholders, aligning with Australia’s obligations under international aviation conventions such as the Convention on International Civil Aviation.
Scope and Application
The Civil Aviation Safety Regulations 1998, under the Civil Aviation Act 1988, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for particular types of aircraft or aeronautical products to ensure the safety of air navigation. These directives, which are legislative instruments, are issued in response to international obligations under the Convention on International Civil Aviation, where the State of Design has a responsibility for the continuing airworthiness of an aircraft type. Consequently, when a State of Design issues an AD, such as the one issued by the USA FAA for Lycoming model 360 aircraft engines, CASA must assess the information and, if necessary, issue an Australian AD to mandate the requirements of the State of Design. The AD/LYC/115 issued by CASA in response to the USA FAA's AD 2006-06-16 is an example of this process. This AD, which will become effective on 11 May 2006, pertains specifically to aircraft registered in Australia and ensures compliance with international standards for continuing airworthiness.
Key Provisions
The Civil Aviation Act 1988, particularly section 98, empowers the Governor-General to make regulations aimed at ensuring the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 then allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. This regulatory structure ensures that safety standards are maintained and enforced across the industry. Section 39.001(5) of the Civil Aviation Safety Regulations 1998 classifies ADs as disallowable instruments under section 46A of the Acts Interpretation Act 1901, making them legislative instruments according to the Legislative Instruments Act 2003.
The obligations imposed by these provisions are multi-faceted. The State of Design, which is the country where an aircraft or aeronautical product is designed, has the primary responsibility for ensuring the continuing airworthiness of the aircraft type. This obligation includes providing all necessary information to the States of Registry to help them ensure the ongoing airworthiness of the aircraft in question. In parallel, the State of Registry, which is the country where an aircraft is registered, must develop or adopt requirements to maintain the continuing airworthiness of the aircraft registered within its territory. When a State of Design issues an AD, the State of Registry, through its national airworthiness authority like CASA, must assess the AD and, if necessary, issue a corresponding AD to enforce the requirements of the State of Design.
Failure to comply with airworthiness directives can lead to serious legal and safety consequences. The Civil Aviation Safety Regulations 1998 do not explicitly outline the penalties for non-compliance with ADs, but non-compliance generally results in the aircraft being deemed non-airworthy, which can lead to grounding of the aircraft and potential criminal or civil penalties. Such penalties might include fines or imprisonment, depending on the severity of the non-compliance and its impact on aviation safety. Given that ADs are issued under the authority of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998, breaches of these directives are taken very seriously, reflecting the high stakes involved in ensuring the safety of air navigation.