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/PDH/1 affecting all model 3/1000/2 propellers fitted to Dove aircraft. CASA has assessed this AD and as a result has cancelled Australian AD/PDH/1. 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, enacted by the Australian Parliament, provides the legislative framework for ensuring the safety of civil aviation in Australia. One of the significant issues the Act was designed to address is the regulation of airworthiness, particularly through the issuance of airworthiness directives (ADs). The Act empowers the Governor-General to make regulations necessary for the safety of air navigation. The Civil Aviation Safety Regulations 1998, under regulation 39.001, delegate the authority to the Civil Aviation Safety Authority (CASA) to issue ADs concerning types of aircraft or aeronautical products, ensuring compliance with international standards set by the Convention on International Civil Aviation. This legislative mechanism is integral in maintaining the continuing airworthiness of aircraft, a responsibility shared between the State of Design and the State of Registry, with CASA acting as Australia’s national airworthiness authority. In line with international obligations and domestic safety requirements, CASA periodically reviews and cancels ADs when the associated safety concerns are resolved, as exemplified by the cancellation of AD/PDH/1 concerning Dove aircraft propellers.
Scope and Application
The Civil Aviation Safety Regulations 1998, under the authority of the Civil Aviation Act 1988, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) that mandate compliance for specific types of aircraft or aeronautical products. This regulatory framework applies to all entities involved in the operation of aircraft within Australia, including aircraft manufacturers, operators, and maintenance service providers. The scope of these regulations extends to ensuring the continuing airworthiness of aircraft by issuing directives that are consistent with international standards set forth by the Convention on International Civil Aviation. The authority to issue these directives is not limited to the Commonwealth but also extends to ensuring compliance with international obligations, such as those under Annex 8 of the Convention. Notably, ADs are considered legislative instruments under the Legislative Instruments Act 2003, and as such, they are subject to disallowance under the Acts Interpretation Act 1901. The issuance and cancellation of ADs, such as the cancellation of Australian AD/PDH/1 for Dove aircraft propellers, are conducted by CASA in accordance with national and international obligations, without necessitating public consultation or a Regulatory Impact Statement.
Key Provisions
The main operative sections of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the framework for issuing airworthiness directives (ADs) under regulation 39.001 (subsection 5). These sections empower the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products, which are then considered legislative instruments under the Legislative Instruments Act 2003. Such ADs are critical tools for ensuring the continuing airworthiness of aircraft, as mandated by Annex 8 to the Convention on International Civil Aviation. In Australia, CASA acts as the national airworthiness authority, assessing information from the State of Design and issuing Australian ADs when necessary. For example, AD/PDH/1 affecting all model 3/1000/2 propellers fitted to Dove aircraft was assessed and subsequently cancelled by CASA, with the cancellation taking effect on 9 April 2009.
The obligations imposed by the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 on the parties involved are substantial. The State of Design must take overall responsibility for the continuing airworthiness of an aircraft type and provide necessary information to the State of Registry. The State of Registry, in this case CASA, 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 must evaluate this information and, if appropriate, issue an Australian AD to enforce the requirements. This process ensures that all aircraft operating within Australia meet the necessary safety standards. CASA's role includes assessing the relevance of foreign ADs and determining whether an Australian AD is necessary.
Breach of the obligations outlined in the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 can result in significant consequences. Failure to comply with an AD can lead to penalties under the Civil Aviation Act 1988, which includes criminal penalties for offences. The exact penalties depend on the nature and severity of the breach, but they can include fines and imprisonment. Additionally, non-compliance with ADs can result in the grounding of aircraft, which can have severe financial and operational consequences for airlines and operators. The legislative framework ensures that all stakeholders are aware of their responsibilities and the potential repercussions of non-compliance.