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/HU 369/24 affecting McDonnell Douglas (Hughes) 369 series Helicopters. CASA has assessed this AD and as a result has cancelled Australian AD/HU 369/24. The cancellation will become effective on 4 June 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 Australian Parliament, serves to regulate and ensure the safety of civil aviation within Australia. This legislation provides the legal foundation for the issuance of regulations and directives aimed at maintaining airworthiness and safety standards in line with both national and international aviation protocols. In particular, the Act facilitates the creation of airworthiness directives through the Civil Aviation Safety Regulations 1998, empowering the Civil Aviation Safety Authority (CASA) to mandate safety requirements for aircraft and aeronautical products. The Civil Aviation Safety Regulations 1998, under regulation 39.001, allow CASA to issue such directives to ensure the continuing airworthiness of aircraft, aligning with international standards as set forth in Annex 8 to the Convention on International Civil Aviation. The policy objective is to maintain and enhance the safety of air navigation through stringent regulatory oversight and adherence to international obligations.
Scope and Application
The Civil Aviation Safety Regulations 1998, under section 39.001, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products, as authorised by section 98 of the Civil Aviation Act 1988. These ADs are legislative instruments, which are subject to disallowance under section 46A of the Acts Interpretation Act 1901 and must comply with the Legislative Instruments Act 2003. The ADs mandate the requirements for the continuing airworthiness of aircraft, ensuring compliance with the responsibilities outlined in Annex 8 to the Convention on International Civil Aviation. Specifically, the State of Design has the primary responsibility for the airworthiness of an aircraft type, while the State of Registry, in this case CASA, ensures the individual aircraft's airworthiness by adopting or developing necessary requirements. This legislative framework applies to all aircraft registered in Australia and affects both domestic and international aviation sectors, aligning with global aviation safety standards.
Key Provisions
The Civil Aviation Act 1988, particularly in conjunction with the Civil Aviation Safety Regulations 1998, facilitates the regulation of airworthiness through the issuance of airworthiness directives (ADs). Under section 98 of the Act, the Governor-General is empowered to make regulations that serve the interests of air navigation safety. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 further enables the Civil Aviation Safety Authority (CASA) to issue ADs for specified kinds of aircraft or aeronautical products. It is noteworthy that these ADs are classified as disallowable instruments under section 46A of the Acts Interpretation Act 1901, and they are legislative instruments as per section 6 of the Legislative Instruments Act 2003.
Entities governed by the Act, particularly CASA, are tasked with the responsibility of ensuring the continuing airworthiness of aircraft registered in Australia. This obligation is aligned with the State of Registry's duties under Annex 8 to the Convention on International Civil Aviation, which mandates that the State of Design provides necessary information to maintain the airworthiness of aircraft types. CASA must evaluate this information and, when necessary, issue Australian ADs to enforce the requirements set by the State of Design. This process ensures that Australian-registered aircraft meet international safety standards.
In the case of AD/HU 369/24 concerning McDonnell Douglas (Hughes) 369 series Helicopters, CASA assessed the relevant AD issued by the State of Design and decided to cancel the corresponding Australian AD. This decision was based on the resolution of the unsafe condition, making a replacement AD unnecessary. The cancellation of AD/HU 369/24, effective from 4 June 2009, was made in accordance with Australia's obligations under the Convention on International Civil Aviation, and no public consultation was required as per the Office of Best Practice Regulation's determination that ADs do not necessitate a Regulatory Impact Statement.
The legal ramifications of non-compliance with ADs are significant. While the specific offences, penalties, or consequences for breach are not detailed in the provided text, it is understood that failing to adhere to ADs could result in severe civil or criminal penalties. These could include substantial fines, imprisonment, or both, reflecting the critical nature of airworthiness regulations in ensuring public safety in aviation.