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 2008-02-18 affecting Cessna 172 model aircraft. The USA is the State of Design for this type. CASA has assessed this AD and has issued Australian AD/CESSNA 170/80, which will become effective on 13 March 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 Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement.
The AD has been made by the Manager, Airframes in the Airworthiness Engineering Branch, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988, enacted by the Australian Parliament, establishes the framework for ensuring the safety of civil aviation within Australia. This legislation provides the authority for the Civil Aviation Safety Authority (CASA) to implement regulations aimed at maintaining the highest safety standards in air navigation. One of the key mechanisms for achieving this is through the issuance of airworthiness directives (ADs). Under regulation 39.001 of the Civil Aviation Safety Regulations 1998, CASA has the power to issue these directives for specific kinds of aircraft or aeronautical products. The Civil Aviation Act 1988 thus addresses the need for a robust regulatory framework to ensure the continuing airworthiness of aircraft, in line with international obligations under the Convention on International Civil Aviation. The policy objective is to harmonise Australia’s airworthiness standards with those of other ICAO Contracting States, thereby enhancing the safety and interoperability of aviation operations globally.
Scope and Application
The Civil Aviation Act 1988, alongside the Civil Aviation Safety Regulations 1998, provides the legislative framework for the issuance of airworthiness directives (ADs) in Australia, which are regulatory measures designed to ensure the safety of air navigation. Under these regulations, the Civil Aviation Safety Authority (CASA) is empowered to issue ADs pertaining to specific types of aircraft or aeronautical products. The authority to issue such directives is rooted in the overarching responsibility of the State of Design to maintain the continuing airworthiness of an aircraft type and to provide necessary information to the States of Registry, as mandated by Annex 8 to the Convention on International Civil Aviation. In the Australian context, CASA, as the national airworthiness authority, must assess any ADs issued by the State of Design and, if deemed necessary, issue corresponding Australian ADs to enforce the requisite safety measures. The issuance of these directives, such as the Australian AD/CESSNA 170/80 in response to the US FAA's AD 2008-02-18 for Cessna 172 model aircraft, does not require public consultation or a Regulatory Impact Statement, reflecting the nature of these measures as technical safety mandates rather than broader policy instruments. The ADs are legislative instruments under the Legislative Instruments Act 2003, and their creation and enforcement are subject to the scrutiny and processes outlined within this legislative framework.
Key Provisions
The Civil Aviation Act 1988, specifically section 98, empowers the Governor-General to enact regulations that serve the interests of air navigation safety. This broad authority allows for the creation of regulations that ensure the safety of all aspects of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 builds on this by allowing the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for particular types of aircraft or aeronautical products. This regulation ensures that ongoing airworthiness of aircraft types can be maintained by addressing potential safety issues as they arise.
The obligations under the Act and the Regulations are clear. The State of Design, which is responsible for the original design and manufacture of the aircraft, must ensure that the aircraft types are airworthy and provide necessary information to the States of Registry to maintain this airworthiness. The State of Registry, in this case CASA, must then assess this information and issue corresponding ADs as necessary to ensure that aircraft on the Australian Register meet the required safety standards. This division of responsibilities is underpinned by Annex 8 to the Convention on International Civil Aviation, which mandates that States of Design and States of Registry work together to ensure the safety of air navigation.
Failing to comply with an AD can lead to significant legal consequences. Section 84A(2) of the Act provides that airworthiness directives are legislative instruments, which means they carry the force of law. Non-compliance with these directives can result in serious safety risks, and in turn, civil or criminal penalties. The maximum penalties for breaches can include fines and imprisonment, reflecting the seriousness of ensuring that aircraft remain airworthy and safe for operation. The consequences underscore the critical importance of adhering to ADs to maintain the high safety standards required in the aviation industry.