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.
Transport Canada has issued AD CF-1996-20R4 affecting Bombardier DHC-8 model aircraft. Canada is the State of Design for this type. CASA has assessed this AD and has issued Australian AD/DHC-8/46, Amendment 4, which will become effective on 27 October 2005. This AD cancels and replaces the previous issue.
As this AD is issued because of Australia’s obligations under Convention on International Civil Aviation, and because it is issued in response to an AD raised by the relevant State of Design, no consultation of the Australian public has taken place on this AD. The Office of Regulatory Review has determined that ADs do not require a Regulatory Impact Statement.
The AD has been made by the Manager, Airframes in the Manufacturing, Certification and New Technologies Office, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988 was enacted to ensure the safety of air navigation, providing a legislative framework for the regulation of civil aviation in Australia. This Act allows the Governor-General to make regulations in the interest of aviation safety. In line with this objective, the Civil Aviation Safety Regulations 1998 were established to provide further detail and enforce safety standards. One such regulation is the issuance of airworthiness directives (ADs), which are issued by the Civil Aviation Safety Authority (CASA) to ensure the continuing airworthiness of aircraft. These ADs are legislative instruments and, as such, are subject to disallowance by Parliament. The issuing of ADs is a crucial aspect of fulfilling Australia's international obligations under the Convention on International Civil Aviation, ensuring that aircraft registered in Australia meet international safety standards. The process for issuing these directives involves assessing information from the aircraft's State of Design and, when necessary, issuing corresponding ADs to mandate compliance with safety requirements.
Scope and Application
The Civil Aviation Safety Regulations 1998, under the Civil Aviation Act 1988, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products, thereby ensuring compliance with safety standards. This regulatory framework applies to all aircraft registered in Australia, including those designed and manufactured both domestically and internationally. As an AD is considered a disallowable instrument under section 46A of the Acts Interpretation Act 1901, it is classified as a legislative instrument. The State of Design, such as Canada in the case of the Bombardier DHC-8 model aircraft, holds the primary responsibility for the continuing airworthiness of an aircraft type and must provide necessary information to States of Registry. CASA, acting as Australia’s national airworthiness authority, must evaluate this information and, if appropriate, issue an Australian AD to enforce the requirements specified by the State of Design. In this specific instance, CASA issued AD/DHC-8/46, Amendment 4, to replace the previous directive, aligning with Australia's obligations under the Convention on International Civil Aviation. This AD became effective on 27 October 2005, without public consultation or the need for a Regulatory Impact Statement, as determined by the Office of Regulatory Review.
Key Provisions
The Civil Aviation Act 1988, through section 98, empowers the Governor-General to create regulations necessary for air navigation safety. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. According to subregulation 39.001(5), an AD is classified as a disallowable instrument under section 46A of the Acts Interpretation Act 1901, and therefore constitutes a legislative instrument as per section 6 of the Legislative Instruments Act 2003. This regulatory framework ensures that airworthiness directives are issued in line with international standards, particularly those outlined in Annex 8 of the Convention on International Civil Aviation. The State of Design has the overarching responsibility for the continuing airworthiness of an aircraft type, and must furnish any necessary information to the States of Registry to maintain airworthiness. The State of Registry, in turn, is accountable for the ongoing airworthiness of individual aircraft.
The obligations imposed by these regulations primarily concern the State of Design and the State of Registry. The State of Design must provide comprehensive information to ensure the continuing airworthiness of the aircraft type, aligning with the requirements set forth in Annex 8 of the Convention on International Civil Aviation. On the other hand, the State of Registry must either develop or adopt requisite measures to ensure the ongoing airworthiness of aircraft within its jurisdiction. When a State of Design issues an airworthiness directive, the State of Registry, in this case CASA as Australia's national airworthiness authority, is required to assess the information and, if deemed appropriate, issue a corresponding Australian AD. This process ensures that international safety standards are effectively implemented and maintained within the Australian aviation sector.
Failure to comply with airworthiness directives can lead to significant consequences. The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 do not explicitly detail specific offences or penalties for non-compliance with ADs in the provided text. However, non-compliance with airworthiness directives generally constitutes a breach of regulatory requirements, potentially leading to civil or criminal penalties under broader aviation safety legislation. These penalties could include fines or imprisonment, depending on the severity of the breach and the specific provisions of the applicable laws. Additionally, non-compliance can result in the grounding of affected aircraft, which can have serious operational and financial implications for airlines and other aviation stakeholders.