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 400/95 affecting Cessna 425 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, 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 Parliament of Australia, is designed to regulate civil aviation within the country, focusing on ensuring the safety of air navigation. This Act empowers the Governor-General to create regulations in the interest of air navigation safety, thereby providing a legal framework for the Civil Aviation Safety Authority (CASA) to implement safety measures. In line with international standards, CASA issues airworthiness directives (ADs) under regulation 39.001 of the Civil Aviation Safety Regulations 1998, which are legislative instruments that mandate compliance with safety standards for aircraft and aeronautical products. ADs are crucial for maintaining the continuing airworthiness of aircraft, a responsibility shared between the State of Design and the State of Registry as per Annex 8 to the Convention on International Civil Aviation. CASA, as the national airworthiness authority, ensures that Australian aircraft meet these international safety standards by issuing or cancelling ADs as necessary. The cancellation of AD/CESSNA 400/95, affecting Cessna 425 model aircraft, demonstrates this process, where CASA assessed the need for the directive and determined that it was no longer necessary due to the resolution of the unsafe condition. This legislative action underscores the importance of international cooperation in maintaining aviation safety standards.
Scope and Application
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 apply to entities and individuals involved in civil aviation activities within Australia. Specifically, the Act and its associated regulations govern the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA), which acts as Australia's national airworthiness authority. These directives are issued to ensure the continuing airworthiness of aircraft registered in Australia and are mandated by international obligations under the Convention on International Civil Aviation. The ADs apply to types of aircraft and aeronautical products, and CASA's authority to issue them is derived from regulation 39.001 of the Civil Aviation Safety Regulations 1998. Notably, ADs are considered disallowable instruments under section 46A of the Acts Interpretation Act 1901 and are legislative instruments under section 6 of the Legislative Instruments Act 2003. The issuance of ADs is also subject to the oversight of the State of Design and the State of Registry, with CASA ensuring compliance with international standards and Australian regulatory requirements.
Key Provisions
The Civil Aviation Act 1988, specifically under section 98, empowers the Governor-General to make regulations aimed at ensuring the safety of air navigation. This includes the issuance of airworthiness directives (ADs) as per regulation 39.001 of the Civil Aviation Safety Regulations 1998. ADs are legislative instruments that mandate safety measures for specific types of aircraft or aeronautical products. According to subregulation 39.001(5), these directives are disallowable under section 46A of the Acts Interpretation Act 1901, meaning they must be tabled in Parliament. Under section 6 of the Legislative Instruments Act 2003, ADs are classified as legislative instruments, reflecting their importance and regulatory status.
The obligations under these regulations primarily rest with the Civil Aviation Safety Authority (CASA), which is tasked with ensuring the continuing airworthiness of aircraft. As Australia’s national airworthiness authority, CASA is responsible for assessing ADs issued by the State of Design (the country where the aircraft type was designed) and deciding whether to issue corresponding ADs in Australia. This process is outlined under Annex 8 to the Convention on International Civil Aviation, where the State of Design has the responsibility for the continuing airworthiness of aircraft types and must provide necessary information to the States of Registry (the country where the aircraft is registered). The State of Registry, in this case CASA, must ensure these requirements are met to maintain the safety standards of the aircraft.
There are no specific obligations for the general public or individual aircraft owners under these provisions, but compliance with ADs is mandatory for operators and owners of affected aircraft. CASA must issue an Australian AD if it deems the information from the State of Design sufficient. The recent cancellation of AD/CESSNA 400/95 for Cessna 425 model aircraft is an example of CASA’s role in enforcing these regulations. The AD was cancelled on 25 September 2008 because the unsafe condition identified no longer existed. Since this cancellation aligns with Australia’s international obligations under the Convention on International Civil Aviation, no public consultation or Regulatory Impact Statement was required.
Failure to comply with ADs can lead to serious consequences. Although specific offences and penalties are not detailed in the provided text, non-compliance with airworthiness directives can result in enforcement actions by CASA. These actions may include fines, suspension or revocation of airworthiness certificates, and potential criminal charges if the non-compliance leads to accidents or other safety breaches. The exact penalties can vary based on the severity of the breach and are typically governed by other sections of the Civil Aviation Act 1988 and related regulations.