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/PMC/29 affecting McCauley model B2D34C53-N/74E () propellers WITH S/Nos 705516 to 705560 which are installed on any aircraft fitted with Lycoming 0-360 or I0-360 series engines. CASA has assessed this AD and as a result has cancelled Australian AD/PMC/29. 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 establish a legislative framework ensuring the safety and efficiency of civil aviation in Australia. The Act authorises the Governor-General to make regulations necessary for the safety of air navigation. Under this authority, the Civil Aviation Safety Regulations 1998 allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for types of aircraft or aeronautical products. ADs are critical tools for ensuring the continuing airworthiness of aircraft, aligning with international standards set by the Convention on International Civil Aviation. In accordance with these obligations, CASA issued and subsequently cancelled an AD affecting McCauley model B2D34C53-N/74E propellers installed on specific aircraft engines. This action was taken following the assessment that the unsafe condition no longer exists, thereby fulfilling Australia’s commitment to international civil aviation safety standards.
Scope and Application
The Civil Aviation Act 1988 applies to the regulation of civil aviation in Australia, encompassing a broad spectrum of aviation activities, entities, and personnel. Under this Act, the Civil Aviation Safety Regulations 1998 empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) to ensure the continuing airworthiness of aircraft and aeronautical products. These regulations apply to all aircraft registered in Australia and to any aeronautical products used on such aircraft. The ADs are legislative instruments that mandate specific requirements for the maintenance, repair, and alteration of aircraft, thus extending to the individuals and entities involved in these activities, including aircraft manufacturers, operators, and maintenance service providers. The geographical reach of the Act and its regulations is national, as CASA is the sole national airworthiness authority in Australia. While the Act broadly applies to all aspects of civil aviation safety, certain exclusions or exemptions may be outlined in the specific ADs issued, tailored to particular aircraft types or aeronautical products. The application of these ADs can be further extended or specified through subordinate instruments, which may include additional guidance or operational requirements to ensure compliance with the overarching legislative framework.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the legislative framework for issuing airworthiness directives (ADs) in Australia. Under section 98 of the Civil Aviation Act 1988, the Governor-General has the authority to make regulations to ensure the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 specifically allows the Civil Aviation Safety Authority (CASA) to issue ADs for types of aircraft or aeronautical products. These ADs are considered legislative instruments under the Legislative Instruments Act 2003, as they are disallowable instruments under section 46A of the Acts Interpretation Act 1901.
The obligations placed on CASA and other relevant parties by these regulations are significant. CASA, as Australia's national airworthiness authority, must review and assess any ADs issued by the State of Design for aircraft types registered in Australia. If CASA determines that an AD is necessary, it must issue an Australian AD to ensure compliance with the airworthiness requirements. The State of Registry, in this case, Australia, must also develop or adopt requirements to ensure the continuing airworthiness of aircraft within its jurisdiction. This includes acting on ADs issued by the State of Design to maintain the safety and airworthiness of aircraft registered in Australia.
Breaching the requirements set forth in ADs can result in serious consequences. While the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 do not explicitly outline specific penalties for non-compliance with ADs, the broader regulatory framework under which CASA operates includes provisions for enforcement. Non-compliance with ADs could potentially lead to actions under the Civil Aviation Act 1988, which may include fines, imprisonment, or both. Furthermore, the operation of an aircraft that does not comply with ADs can be considered a breach of airworthiness standards, leading to potential revocation of the aircraft's certificate of airworthiness, thereby grounding the aircraft until compliance is achieved.
In summary, the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the legal basis for CASA to issue and enforce ADs to ensure the continuing airworthiness of aircraft in Australia. These regulations impose obligations on CASA and the State of Registry to act on ADs issued by the State of Design, ensuring that Australian-registered aircraft meet the necessary safety standards. Failure to comply with these directives can result in severe penalties, including fines, imprisonment, and grounding of non-compliant aircraft.