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/S-76/59 Amendment 1 affecting Sikorsky S-76 series Helicopters. CASA has assessed this AD and as a result has cancelled Australian AD/S-76/59 Amendment 1. The cancellation will become effective on 2 July 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 introduced to establish and maintain a robust regulatory framework for civil aviation safety, addressing gaps in aviation safety regulation. It empowers the Governor-General to create regulations for the safety of air navigation. One such regulation is detailed in the Civil Aviation Safety Regulations 1998, where the Civil Aviation Safety Authority (CASA) has the authority to issue airworthiness directives (ADs) concerning types of aircraft or aeronautical products. These ADs are legislative instruments under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The Civil Aviation Safety Authority is mandated to ensure the continuing airworthiness of aircraft registered in Australia, aligning with international standards set by the Convention on International Civil Aviation. This includes the assessment and, where necessary, the issuance of Australian ADs in response to directives from the State of Design, ensuring compliance with both national and international safety standards.
Scope and Application
The Civil Aviation Act 1988, in conjunction with the Civil Aviation Safety Regulations 1998, provides a framework for the issuance of airworthiness directives (ADs) aimed at ensuring the safety of air navigation. Under these regulations, the Civil Aviation Safety Authority (CASA) is empowered to issue ADs for specific types of aircraft or aeronautical products, as outlined in regulation 39.001. Such ADs are considered disallowable instruments under section 46A of the Acts Interpretation Act 1901 and are legislative instruments as per the Legislative Instruments Act 2003. The ADs play a crucial role in maintaining the continuing airworthiness of aircraft, a responsibility that falls on the State of Design and the State of Registry, in accordance with Annex 8 of the Convention on International Civil Aviation. CASA, as Australia's national airworthiness authority, must assess ADs issued by the State of Design and may issue corresponding Australian ADs if necessary. The cancellation of AD/S-76/59 Amendment 1, concerning Sikorsky S-76 series Helicopters, exemplifies this process, with CASA determining that no further AD is required as the unsafe condition no longer exists. This action is aligned with Australia's obligations under the Convention on International Civil Aviation and does not require public consultation or a Regulatory Impact Statement.
Key Provisions
The Civil Aviation Act 1988, specifically section 98, empowers the Governor-General to create regulations that serve the interests of air navigation safety. In line with this, regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) concerning specific aircraft types or aeronautical products. It is important to note that ADs are considered disallowable instruments under section 46A of the Acts Interpretation Act 1901, and as such, they are legislative instruments in accordance with section 6 of the Legislative Instruments Act 2003.
The obligations placed on CASA and other entities governed by the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 are significant. The State of Design has the responsibility to ensure the continuing airworthiness of aircraft types, which includes providing necessary information to States of Registry, as outlined in Annex 8 to the Convention on International Civil Aviation. The State of Registry, in turn, is tasked with ensuring the airworthiness of individual aircraft by developing or adopting appropriate requirements. CASA, as Australia's national airworthiness authority, must assess information from the State of Design and issue Australian ADs when necessary to mandate the requirements of the State of Design.
Failing to comply with the provisions of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 can lead to serious consequences. While specific offences and penalties are not detailed in the provided text, it is clear that any breach of these regulations could have civil or criminal implications. In the context of ADs, CASA has the authority to cancel an AD when it determines that an unsafe condition no longer exists, as seen in the case of AD/S-76/59 Amendment 1 affecting Sikorsky S-76 series helicopters. The cancellation of this AD became effective on 2 July 2009, with no replacement AD required as the unsafe condition had been resolved.
In summary, the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 establish a comprehensive framework for ensuring the safety of air navigation in Australia. CASA's role in issuing ADs and enforcing compliance with these regulations is critical to maintaining the airworthiness of aircraft and protecting the public from potential risks. The cancellation of AD/S-76/59 Amendment 1 highlights the importance of ongoing assessment and action to address safety concerns, demonstrating the adaptability and responsiveness of the regulatory framework.