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/HILLER 12/6 affecting Hiller UH-12 series helicopters. CASA has assessed this AD and as a result has cancelled Australian AD/HILLER 12/6. The cancellation will become effective on 27 August 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 Initial Airworthiness in the Airworthiness and 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, addresses the regulation of civil aviation to ensure safety and efficiency within Australia's airspace. This legislation empowers the Governor-General to create regulations that uphold the safety standards of air navigation, with a primary focus on the wellbeing of all persons involved in aviation. Specifically, regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for aircraft types and aeronautical products. These directives are integral to maintaining the continuing airworthiness of aircraft, a responsibility shared between the State of Design and the State of Registry under Annex 8 of the Convention on International Civil Aviation. CASA, as Australia's national airworthiness authority, evaluates and implements ADs issued by the State of Design to ensure compliance with international standards, thereby safeguarding the safety of air navigation in Australia.
Scope and Application
The Civil Aviation Act 1988 and its subordinate Civil Aviation Safety Regulations 1998 establish a comprehensive framework for ensuring the safety and airworthiness of aircraft within Australian jurisdiction. These regulations apply to all aircraft registered in Australia, as well as to the manufacturers or designers of aircraft types that are registered within the country. Under regulation 39.001, the Civil Aviation Safety Authority (CASA) is empowered to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products, which are legislative instruments subject to disallowance. The State of Registry, which is responsible for the continuing airworthiness of individual aircraft, must comply with the ADs issued by the State of Design, and CASA, as Australia’s national airworthiness authority, plays a pivotal role in this process. The ADs serve as a mechanism to communicate necessary safety measures, and their issuance or cancellation is rooted in Australia’s commitments under the Convention on International Civil Aviation. The Act and its regulations thus govern the conduct of aircraft manufacturers, operators, and regulatory bodies, ensuring that safety standards are uniformly upheld across the industry.
Key Provisions
The Civil Aviation Act 1988, particularly section 98, empowers the Governor-General to enact regulations aimed at ensuring the safety of air navigation. These regulations, such as regulation 39.001 of the Civil Aviation Safety Regulations 1998, enable the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) concerning specific types of aircraft or aeronautical products. These ADs are considered legislative instruments under subregulation 39.001(5) and are subject to disallowance under section 46A of the Acts Interpretation Act 1901. The process is further outlined in section 6 of the Legislative Instruments Act 2003. In essence, ADs serve as critical tools for maintaining the continuing airworthiness of aircraft, ensuring they meet safety standards set by the Convention on International Civil Aviation, particularly under Annex 8.
The obligations under this legislation are multifaceted and significant. The State of Design, which is responsible for the initial airworthiness of a specific aircraft type, must provide all necessary information to ensure the aircraft's continuing airworthiness. This information must be made available to the States of Registry, which, in turn, are mandated to develop or adopt requirements to ensure the continuing airworthiness of the aircraft registered within their jurisdiction. For Australia, CASA plays a crucial role as the national airworthiness authority. When an AD is issued by the State of Design, CASA is required to assess this information and, if deemed necessary, issue an Australian AD to mandate the requirements of the State of Design.
The Civil Aviation Safety Regulations 1998, as well as the obligations stemming from the Convention on International Civil Aviation, impose strict requirements on both the State of Design and the State of Registry. These include the provision and dissemination of critical information regarding any safety concerns or necessary corrective actions to maintain airworthiness. In the specific case of the AD/HILLER 12/6 concerning Hiller UH-12 series helicopters, CASA has assessed the situation and determined that the unsafe condition no longer exists, leading to the cancellation of the AD. This decision was made in accordance with subsection 84A(2) of the Act by the Manager Initial Airworthiness in the Airworthiness and Engineering Branch, on behalf of CASA.
Breach of these obligations or failure to comply with ADs can result in serious consequences. The Civil Aviation Act 1988 and associated regulations do not explicitly detail the penalties for non-compliance with ADs. However, the broader legislative framework under which CASA operates includes provisions for enforcement actions, including fines and potential imprisonment for serious breaches. Given the critical nature of airworthiness directives in ensuring public safety, non-compliance is taken very seriously, and the penalties for such breaches can be severe, reflecting the high stakes involved in civil aviation safety.