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.
CASA issued AD/GAF-N22/52 in 1987 to correct an unsafe condition on GAF N22 and N24 series aircraft. CASA has assessed this AD and has decided to amend it to adopt the manufacturer’s latest Service Bulletin. The amended AD, AD/GAF-N22/52 Amendment 1, will become effective on 29 January 2010. As Australia is the State of Design for these aircraft, CASA is required to develop, and to transmit to other States of Registry, an AD to correct the problem.
CASA has not consulted with the Australian industry and public. This is because there is no increased cost or time in completing the modified inspection.
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, Continuing Airworthiness, in the Airworthiness and Engineering Branch, on behalf of CASA, in accordance with subsection 94 (1) of the Act.
Overview
The Civil Aviation Act 1988 was enacted to regulate civil aviation in Australia, focusing on the safety of air navigation. This Act provides the framework for the issuance of regulations, including airworthiness directives (ADs), which are legislative instruments used to mandate safety requirements for aircraft and aeronautical products. The Civil Aviation Safety Regulations 1998, under regulation 39.001, empower the Civil Aviation Safety Authority (CASA) to issue ADs, which are essential for maintaining the continuing airworthiness of aircraft as per international standards set out in Annex 8 of the Convention on International Civil Aviation. As the State of Design for certain aircraft, Australia, through CASA, is required to issue ADs to address unsafe conditions identified in aircraft types registered in Australia. The policy objective is to ensure the safety of air navigation by maintaining and enhancing the airworthiness of aircraft through timely and effective regulatory measures.
Scope and Application
The Civil Aviation Act 1988 and associated Civil Aviation Safety Regulations 1998 provide the legislative framework for the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA) to ensure the safety of air navigation. These regulations apply to all aircraft and aeronautical products registered in Australia, imposing obligations on aircraft operators and owners to comply with ADs that mandate corrective actions for identified safety issues. The ADs, which are legislative instruments, are issued in accordance with Annex 8 to the Convention on International Civil Aviation and are intended to maintain the continuing airworthiness of aircraft types. As the State of Design for certain aircraft, Australia is responsible for issuing ADs for those types, which CASA must then assess and, if appropriate, issue as Australian ADs. The issuance of ADs is a critical mechanism for ensuring compliance with safety standards, and while consultation with industry and the public is generally a part of the regulatory process, CASA determined that such consultation was unnecessary for the specific amendments to AD/GAF-N22/52 due to the negligible additional cost or time required for compliance. The ADs are developed and issued by CASA under the authority granted by the Act and Regulations, without the need for a Regulatory Impact Statement as determined by the Office of Best Practice Regulation.
Key Provisions
The Civil Aviation Act 1988 (sections 98 and 94(1)) empowers the Governor-General to make regulations for the safety of air navigation, and permits the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) under regulation 39.001 of the Civil Aviation Safety Regulations 1998. This authority is exercised by CASA to mandate safety standards for aircraft and aeronautical products. An AD is a legislative instrument that is subject to disallowance under section 46A of the Acts Interpretation Act 1901 and is regulated by the Legislative Instruments Act 2003. The issuing of ADs aligns with Annex 8 to the Convention on International Civil Aviation, which assigns the State of Design the responsibility for the continuing airworthiness of an aircraft type, and requires this State to provide necessary information to the States of Registry.
The obligations imposed by the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 require CASA to issue ADs when unsafe conditions are identified in aircraft types registered in Australia. The State of Design, in this case Australia, must ensure the continuing airworthiness of aircraft, and CASA, as the national airworthiness authority, is responsible for assessing foreign ADs and issuing corresponding Australian ADs as necessary. The obligation extends to ensuring that ADs are communicated effectively to the relevant stakeholders, including aircraft operators, to maintain safety standards. CASA's role also includes the development of ADs to address specific safety issues, as exemplified by the amended AD/GAF-N22/52 Amendment 1 issued to correct an unsafe condition on GAF N22 and N24 series aircraft.
Failure to comply with ADs can result in serious safety risks, and the Civil Aviation Act 1988 and Civil Aviation Safety Regulations 1998 do not explicitly outline specific offences, penalties, or consequences for non-compliance within the provided text. However, the overarching regulatory framework implies that non-compliance with ADs could lead to enforcement actions by CASA, which may include grounding of non-compliant aircraft, fines, or other regulatory sanctions. The severity of these consequences would be determined by the nature and extent of the non-compliance, and CASA’s enforcement discretion. The regulatory impact of non-compliance is significant, potentially affecting the safety and airworthiness of the aircraft, and thereby the safety of air navigation.