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/M20/10 affecting Mooney M20C, E and F model aeroplanes. CASA has assessed this AD and as a result has cancelled Australian AD/M20/10. The cancellation will become effective on 9 April 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, Airframe 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 Parliament of Australia, was designed to provide a comprehensive framework for the regulation of civil aviation within Australia, with a primary focus on ensuring the safety of air navigation. In line with this objective, the Act empowers the Governor-General to create regulations under section 98, with a particular emphasis on maintaining the safety standards of air navigation. Complementing this, the Civil Aviation Safety Regulations 1998 allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) to maintain the continuing airworthiness of aircraft and aeronautical products. These ADs are legislative instruments, subject to disallowance and review as per the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003, respectively. The policy objective underpinning these measures is to uphold international safety standards as set forth in the Convention on International Civil Aviation, particularly concerning the responsibilities of the State of Design and the State of Registry in ensuring aircraft airworthiness.
Scope and Application
The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific kinds of aircraft or aeronautical products to ensure the safety of air navigation. These ADs, as legislative instruments, serve to enforce necessary safety measures and are aligned with Australia's obligations under the Convention on International Civil Aviation. Specifically, while the State of Design holds primary responsibility for the continuing airworthiness of an aircraft type, CASA, as Australia’s national airworthiness authority, must assess and potentially issue Australian ADs in response to directives from the State of Design. This process ensures that Australian-registered aircraft meet international safety standards. Notably, the cancellation of Australian AD/M20/10 for Mooney M20C, E, and F model aeroplanes was a direct outcome of Australia's commitment to these international obligations, and no public consultation was required as stipulated by the Convention. The ADs are issued under the authority of the Act and do not require a Regulatory Impact Statement as determined by the Office of Best Practice Regulation.
Key Provisions
The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products (sections 98 and 39.001). An AD is a legislative instrument under the Legislative Instruments Act 2003 (section 6), and it serves as a means to ensure the continuing airworthiness of aircraft, in accordance with Annex 8 to the Convention on International Civil Aviation. The State of Design is responsible for providing necessary information to maintain airworthiness, while the State of Registry ensures the airworthiness of individual aircraft. In this context, CASA is tasked with assessing and, if appropriate, issuing ADs to enforce the requirements of the State of Design.
The obligations imposed by these regulations are multifaceted. CASA must meticulously evaluate any ADs issued by the State of Design to determine their applicability and necessity for Australian aircraft. Once assessed, CASA may issue corresponding Australian ADs to mandate compliance with the safety requirements. The State of Registry, through CASA, must ensure that all aircraft on the Australian Register comply with these directives, thereby upholding the safety standards set by the State of Design. Additionally, CASA must cancel any ADs that no longer address existing unsafe conditions, as demonstrated in the case of AD/M20/10 for Mooney M20C, E, and F model aeroplanes, which was cancelled on 9 April 2009 due to the resolution of the unsafe condition.
Failing to comply with airworthiness directives can lead to severe consequences. Under the Civil Aviation Act 1988, non-compliance can result in both civil and criminal penalties. The specific penalties vary depending on the severity of the breach and the specific provisions of the Act, but they may include substantial fines and, in serious cases, imprisonment. Additionally, operators found in violation of ADs may face sanctions such as the grounding of aircraft, suspension of operations, or other regulatory actions by CASA. These measures are enforced to ensure that all stakeholders maintain the highest standards of aviation safety.
The Civil Aviation Safety Regulations 1998 and the associated legislative framework provide a robust system for maintaining and enforcing airworthiness standards. By issuing and enforcing ADs, CASA ensures that the safety of air navigation is prioritised, in line with international obligations and best practices. The interplay between the State of Design, the State of Registry, and CASA creates a comprehensive safety net that protects both the aviation industry and the public. The cancellation of AD/M20/10 illustrates the dynamic nature of airworthiness regulations, adapting to changing safety conditions and ensuring continuous improvement in aviation safety standards.