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/CESSNA 400/104 affecting Cessna 441 model aircraft. CASA has assessed this AD and as a result has cancelled it. The cancellation will become effective on 25 September 2008. 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, Airframes 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 framework for civil aviation safety in Australia, addressing the need for consistent and effective regulation of air navigation and aircraft operations. This Act empowers the Governor-General to make regulations, including the issuance of airworthiness directives (ADs), to ensure the safety of air navigation. The Civil Aviation Safety Regulations 1998 further detail the procedures for issuing ADs, which are legislative instruments subject to disallowance under the Acts Interpretation Act 1901. ADs are a critical component of maintaining the continuing airworthiness of aircraft, as they mandate specific safety requirements in response to identified unsafe conditions. The Civil Aviation Safety Authority (CASA) acts as Australia's national airworthiness authority, responsible for issuing ADs in accordance with international standards set by the International Civil Aviation Organization (ICAO). The recent cancellation of AD/CESSNA 400/104 affecting Cessna 441 model aircraft exemplifies CASA's role in ensuring that ADs are issued or cancelled based on the latest safety assessments, thereby fulfilling Australia's obligations under the Convention on International Civil Aviation.
Scope and Application
The Civil Aviation Act 1988, in conjunction with the Civil Aviation Safety Regulations 1998, provides the framework for the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA). Under this legislation, CASA is empowered to issue ADs for specific types of aircraft or aeronautical products to ensure the safety of air navigation. These ADs serve as a critical component of the continuing airworthiness of aircraft, mandated by Annex 8 of the Convention on International Civil Aviation. The ADs are legislative instruments as per the Legislative Instruments Act 2003, and their issuance is subject to the requirements set forth in the Civil Aviation Act and the Civil Aviation Safety Regulations. This legislative framework applies to all aircraft registered in Australia, with CASA acting as the national airworthiness authority responsible for assessing and issuing ADs when necessary. The ADs are issued under the authority of the Manager, Airframes in the Airworthiness Engineering Group, on behalf of CASA, as stipulated in the Act. This regulatory approach ensures compliance with international standards and the ongoing safety of aircraft operating within Australian airspace.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the legislative framework for the issuance of airworthiness directives (ADs) in Australia. Under section 98 of the Civil Aviation Act 1988, the Governor-General is empowered to make regulations for the purposes of the Act, specifically to ensure the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue ADs for specific kinds of aircraft or aeronautical products. These directives are considered disallowable instruments under section 46A of the Acts Interpretation Act 1901 and are treated as legislative instruments in accordance with section 6 of the Legislative Instruments Act 2003.
The obligations under this legislation are multifaceted. The State of Design of an aircraft holds the primary responsibility for the continuing airworthiness of the aircraft type, a duty that includes providing necessary information to States of Registry. This ensures that all relevant information is available to maintain the safety and airworthiness of the aircraft. The State of Registry, in this case Australia, must then develop or adopt requirements to ensure the continuing airworthiness of aircraft registered within its jurisdiction. When an AD is issued by a State of Design, CASA must assess the information and, if necessary, issue an Australian AD to enforce the requirements.
The Civil Aviation Safety Regulations 1998 and the Convention on International Civil Aviation impose specific requirements on the parties involved. CASA, acting as Australia's national airworthiness authority, is tasked with evaluating ADs issued by other States of Design. If an AD mandates requirements for aircraft registered in Australia, CASA must either endorse these requirements or issue its own AD. This ensures that Australian-registered aircraft meet international safety standards and comply with local regulations.
Failure to comply with ADs can result in serious consequences. Both civil and criminal penalties may be imposed for non-compliance, which can include fines and imprisonment. The exact penalties depend on the severity of the breach and the specific provisions of the legislation. It is essential for all parties involved—manufacturers, operators, and regulatory authorities—to adhere to the requirements set out in the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 to ensure the safety of air navigation and the continuing airworthiness of aircraft.