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-76/37 affecting Sikorsky S-76A model Helicopters. CASA has assessed this AD and as a result has cancelled Australian AD/S-76/37. 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, 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, enacted by the Commonwealth Parliament, is designed to regulate the safety aspects of civil aviation in Australia. It empowers the Governor-General to create regulations that ensure the safety of air navigation. Complementing this, the Civil Aviation Safety Regulations 1998 allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific aircraft or aeronautical products, which are critical for maintaining the continuing airworthiness of aircraft. These directives are made legislative instruments under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The overarching objective of these regulations is to ensure that the safety standards set by the Convention on International Civil Aviation are met, thereby safeguarding the interests of the Australian public and international aviation community.
Scope and Application
The Civil Aviation Act 1988, in conjunction with the Civil Aviation Safety Regulations 1998, provides the legal framework for the issuance of airworthiness directives (ADs) in Australia. Under this Act, the Civil Aviation Safety Authority (CASA) is empowered to issue ADs for specific types of aircraft or aeronautical products, as stipulated in regulation 39.001. These ADs are legislative instruments, subject to disallowance and regulation under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003 respectively. The ADs are integral to ensuring the continuing airworthiness of aircraft, aligning with international standards set forth in Annex 8 of the Convention on International Civil Aviation. The State of Design is primarily responsible for the airworthiness of an aircraft type, while the State of Registry, in this case CASA, ensures that Australian-registered aircraft meet these international safety standards. The issuance, assessment, and potential cancellation of ADs are all critical processes managed by CASA to maintain the safety of air navigation within Australia.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 outline the framework within which airworthiness directives (ADs) are issued and managed. Under section 98 of the Act (1), the Governor-General has the authority to create regulations aimed at ensuring the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products (2). These ADs are considered disallowable instruments, meaning they can be annulled by a resolution of either House of Parliament, and they are classified as legislative instruments under the Legislative Instruments Act 2003 (3). These regulations are aligned with Annex 8 to the Convention on International Civil Aviation, which assigns the State of Design the overarching responsibility for the continuing airworthiness of an aircraft type, necessitating the provision of pertinent information to the States of Registry.
The obligations imposed by the Act and the Regulations on relevant parties are multifaceted. The State of Design must ensure the continuing airworthiness of an aircraft type and provide necessary information to the States of Registry (4). The State of Registry, in turn, must develop or adopt requirements to maintain the airworthiness of aircraft registered within its jurisdiction (5). CASA, acting on behalf of Australia, is tasked with assessing the information provided by the State of Design and issuing corresponding Australian ADs when necessary (6). The process involves rigorous assessment to ensure that the mandates align with safety standards and effectively address any identified unsafe conditions.
Failure to comply with ADs can result in significant legal consequences. Under the Civil Aviation Act 1988, non-compliance with an AD can be considered an offence, potentially leading to enforcement actions. Although specific penalties are not detailed within the provided text, it is known that non-compliance with aviation regulations can result in substantial fines and other civil or criminal penalties as determined by relevant authorities. The severity of these penalties reflects the critical importance of adhering to ADs in maintaining the safety and airworthiness of aircraft.
The regulatory process for issuing or cancelling ADs, as outlined in the Civil Aviation Safety Regulations 1998, does not mandate public consultation for AD cancellations arising from international obligations under the Convention on International Civil Aviation (7). Additionally, the Office of Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement, streamlining the process while maintaining focus on safety imperatives (8). The AD in question, AD/S-76/37, was issued and subsequently cancelled by CASA due to the resolution of the unsafe condition it was addressing, without the need for a replacement AD (9). This decision was made in accordance with the legislative framework, ensuring that regulatory actions are timely and effective in addressing safety concerns.