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 Civil Aviation Safety Authority or its predecessors issued AD/AA-1/11 affecting Gulfstream AA-1 model aircraft. CASA has assessed this AD and as a result has cancelled AD/AA-1/11. The cancellation will become effective on 4 June 2009. No replacement AD is required, as the unsafe condition no longer exists.
As this AD has been cancelled because of Australia’s obligations under the Convention on International Civil Aviation, no consultation with the Australian public has taken place on this AD cancellation. 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, Systems and New Technologies, in the Airworthiness Engineering Group, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988 is a pivotal piece of legislation in Australia, enacted to regulate civil aviation in the interests of safety, efficiency, and environmental protection. This Act was introduced to address the need for comprehensive and authoritative governance of civil aviation activities, ensuring they are conducted in a manner that prioritises public safety and national security. The Act empowers the Governor-General to make regulations for the purposes of the Act, thereby providing a flexible framework to address evolving challenges in the aviation industry. The Civil Aviation Safety Regulations 1998 further detail specific safety requirements and procedures, including the issuance of airworthiness directives by the Civil Aviation Safety Authority (CASA). These directives are critical in maintaining the safety standards of aircraft and aeronautical products, ensuring compliance with international obligations under the Convention on International Civil Aviation. The policy objective underlying this legislation is to uphold the highest standards of air safety, reflecting Australia's commitment to international aviation safety norms and its responsibility towards the continuing airworthiness of aircraft registered within its jurisdiction.
Scope and Application
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the legislative framework for issuing airworthiness directives (ADs) within Australia. Under section 98 of the Civil Aviation Act 1988, the Governor-General is empowered to make regulations that serve the interests of air navigation safety. Pursuant to regulation 39.001 of the Civil Aviation Safety Regulations 1998, the Civil Aviation Safety Authority (CASA) is authorised to issue ADs for specific types of aircraft or aeronautical products. An AD is a legislative instrument, disallowable under section 46A of the Acts Interpretation Act 1901, and is subject to the Legislative Instruments Act 2003. These ADs are integral to maintaining the continuing airworthiness of aircraft as mandated by Annex 8 to the Convention on International Civil Aviation, with the State of Design having the overarching responsibility and the State of Registry tasked with ensuring the aircraft’s compliance. In the case of Gulfstream AA-1 model aircraft, CASA issued and subsequently cancelled AD/AA-1/11, effective from 4 June 2009, following the resolution of the unsafe condition identified. The cancellation of this AD was conducted in accordance with Australia’s international obligations, without the need for public consultation or a Regulatory Impact Statement.
Key Provisions
Under section 98 of the Civil Aviation Act 1988, the Governor-General is empowered to establish regulations intended to ensure the safety of air navigation. This section serves as the foundation for the creation of specific safety measures and mandates, including the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA). Regulation 39.001 of the Civil Aviation Safety Regulations 1998 specifically empowers CASA to issue ADs for particular types of aircraft or aeronautical products. These directives are essential for maintaining the safety and airworthiness of aircraft operating within Australia. They are also classified as disallowable instruments under section 46A of the Acts Interpretation Act 1901 and, as such, are legislative instruments according to section 6 of the Legislative Instruments Act 2003.
The obligations imposed by the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 require CASA to closely monitor and respond to any identified safety issues related to aircraft. When a State of Design issues an AD for a type of aircraft registered in Australia, CASA must evaluate the information provided and, if necessary, issue a corresponding Australian AD. This ensures that all aircraft registered in Australia meet the required safety standards. Additionally, under Annex 8 to the Convention on International Civil Aviation, the State of Design has the primary responsibility for the continuing airworthiness of an aircraft type and must provide necessary information to the States of Registry. The State of Registry, in turn, must ensure that the aircraft under its jurisdiction maintain airworthiness by implementing the appropriate requirements or ADs.
Failure to comply with the airworthiness directives can lead to significant legal consequences. Non-compliance with the directives may result in the aircraft being deemed unairworthy, potentially leading to grounding of the aircraft until the required actions are taken. Additionally, under the Civil Aviation Act 1988, CASA can impose penalties for breaches of the regulations, including fines and other enforcement actions. The severity of the penalties can vary depending on the nature and extent of the non-compliance, but they are intended to ensure that all parties adhere to the necessary safety standards to protect the public and maintain the integrity of the aviation system.
The Civil Aviation Safety Authority has the authority to cancel ADs when the conditions that necessitated their issuance are no longer present. For instance, AD/AA-1/11, which affected Gulfstream AA-1 model aircraft, was assessed by CASA and subsequently cancelled because the unsafe condition no longer existed. This cancellation was made effective on 4 June 2009, and no replacement AD was necessary. Such actions are taken in accordance with Australia’s obligations under the Convention on International Civil Aviation and are subject to the provisions outlined in the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998. These measures are crucial for maintaining the safety and reliability of the national aviation fleet.