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/PHS/6 affecting Hamilton Standard model 23E-50 propellers. CASA has assessed this AD and as a result has cancelled Australian AD/PHS/6. 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, 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 was enacted to provide a comprehensive legal framework for civil aviation in Australia, with a primary focus on ensuring the safety of air navigation. This legislation allows the Governor-General to make regulations under section 98, thereby enabling the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) as per regulation 39.001 of the Civil Aviation Safety Regulations 1998. These ADs, which are legislative instruments under the Legislative Instruments Act 2003, serve as a mechanism for the State of Design to communicate necessary information to ensure the continuing airworthiness of aircraft types. The Civil Aviation Act 1988 ensures that Australia’s national airworthiness authority, CASA, assesses and implements these directives appropriately, aligning with international obligations under the Convention on International Civil Aviation. The policy objective is to maintain high safety standards in civil aviation through effective regulation and enforcement of airworthiness directives.
Scope and Application
The Civil Aviation Act 1988, along with 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 regulations apply to all aircraft registered in Australia, as well as to any aeronautical products used within the country. The ADs are legislative instruments that CASA issues to mandate safety requirements, particularly when an unsafe condition is identified with a particular type of aircraft or aeronautical product. The State of Design, which is responsible for the initial airworthiness of an aircraft type, must provide necessary information to the States of Registry, including Australia, to ensure continuing airworthiness. CASA, as Australia's national airworthiness authority, must assess this information and issue corresponding ADs if deemed necessary. In the specific case of AD/PHS/6 concerning Hamilton Standard model 23E-50 propellers, CASA assessed the AD and subsequently cancelled it, as the unsafe condition no longer existed, without the need for a replacement AD. This action aligns with Australia's obligations under the Convention on International Civil Aviation and was made by CASA without public consultation or the requirement for a Regulatory Impact Statement.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 establish a framework for the safety of air navigation, with specific attention to airworthiness directives (ADs). Section 98 of the Act allows the Governor-General to make regulations that are in the interests of air navigation safety. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue ADs for particular types of aircraft or aeronautical products. It is important to note that under subregulation 39.001(5), ADs are classified as disallowable instruments under section 46A of the Acts Interpretation Act 1901, and as such, they are legislative instruments as per section 6 of the Legislative Instruments Act 2003.
Under these regulations, the State of Design, which is responsible for the continuing airworthiness of an aircraft type, must provide necessary information to ensure the airworthiness of that type to the States of Registry. The State of Registry, which is responsible for the continuing airworthiness of individual aircraft, must develop or adopt requirements to ensure airworthiness. When the State of Design issues an AD, CASA must assess this information and, if appropriate, issue an Australian AD to enforce the requirements of the State of Design. In the case of the Hamilton Standard model 23E-50 propellers, CASA issued AD/PHS/6, but has since cancelled it due to the unsafe condition no longer existing.
The obligations imposed by these regulations on the parties involved are significant. The State of Design must provide all necessary information to ensure the continuing airworthiness of an aircraft type to the States of Registry. The State of Registry must then develop or adopt requirements to ensure the airworthiness of individual aircraft. CASA, as Australia's national airworthiness authority, must assess any information provided by the State of Design and issue an Australian AD if appropriate. CASA must also ensure that any ADs issued are in line with Australia's obligations under the Convention on International Civil Aviation.
Failure to comply with the requirements of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 can result in significant penalties. Offences under the Act can result in fines of up to $1.2 million for individuals and $6 million for corporations, as well as imprisonment. There are also civil consequences for breach of the regulations, including the potential for CASA to take enforcement action against aircraft operators or manufacturers. It is essential that all parties involved in the airworthiness of aircraft comply with these regulations to ensure the safety of air navigation.