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/AC-CLA/1 affecting all Aircraft Parts and Development A-9 series aeroplanes. CASA has assessed this AD and as a result has cancelled Australian AD/AC-CLA/1. The cancellation will become effective on 28 August 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, Airframe and Structures, in the Airworthiness Engineering Branch, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988, enacted by the Commonwealth Parliament, was introduced to establish a comprehensive regulatory framework for civil aviation in Australia, ensuring the safety and efficiency of air navigation. This Act grants the Civil Aviation Safety Authority (CASA) the authority to issue airworthiness directives (ADs) to mandate safety requirements for aircraft and aeronautical products, as stipulated in regulation 39.001 of the Civil Aviation Safety Regulations 1998. These ADs serve as legislative instruments under the Legislative Instruments Act 2003 and align with the obligations of Australia as a signatory to the Convention on International Civil Aviation. The policy objective of these regulations is to uphold the highest safety standards in civil aviation, ensuring the continuing airworthiness of aircraft and aeronautical products registered in Australia. The Civil Aviation Safety Authority, as Australia's national airworthiness authority, plays a crucial role in issuing and managing ADs to meet these safety standards.
Scope and Application
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the legislative framework for the regulation of airworthiness directives (ADs) in Australia, with the Civil Aviation Safety Authority (CASA) having the authority to issue such directives under regulation 39.001. These directives are legislative instruments as per section 46A of the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. ADs are essential for ensuring the continuing airworthiness of aircraft, as mandated by Annex 8 of the Convention on International Civil Aviation. The State of Design, which is the country where the aircraft type was designed, has the primary responsibility for ensuring the airworthiness of the aircraft type, while the State of Registry, in this case, Australia, is responsible for the airworthiness of individual aircraft registered within its territory. Consequently, when an AD is issued by the State of Design, CASA must review the information and, if necessary, issue a corresponding Australian AD to enforce the requirements. The specific AD/AC-CLA/1, which had been issued affecting all Aircraft Parts and Development A-9 series aeroplanes, has been cancelled by CASA as of 28 August 2008 due to the unsafe condition no longer existing, in line with Australia’s obligations under international aviation agreements. This cancellation does not require public consultation or a Regulatory Impact Statement.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the legal framework within which the Civil Aviation Safety Authority (CASA) issues airworthiness directives (ADs) under section 98 and regulation 39.001, respectively. These ADs are essential for ensuring the continuing airworthiness of aircraft and aeronautical products, and they function as legislative instruments that can be disallowed under section 46A of the Acts Interpretation Act 1901. Regulation 39.001(5) of the Civil Aviation Safety Regulations 1998 specifically stipulates that ADs are disallowable instruments, further reinforcing their legislative status.
The obligations imposed by these provisions on the parties involved are substantial. The State of Design is primarily responsible for the continuing airworthiness of an aircraft type and must provide all necessary information to ensure safety, as outlined in Annex 8 of the Convention on International Civil Aviation. Correspondingly, the State of Registry, such as CASA in Australia, must assess this information and, if necessary, issue an Australian AD to enforce the requirements of the State of Design. This ensures that the aircraft remains airworthy according to international standards.
Failure to comply with the ADs can result in severe consequences. The Act and the Regulations do not explicitly detail the penalties for non-compliance, but given the critical nature of airworthiness directives, non-compliance could potentially lead to grounding of aircraft, legal action, or other regulatory sanctions. The seriousness of these potential consequences underscores the importance of adhering to ADs.
CASA’s issuance and cancellation of ADs, such as the AD/AC-CLA/1 for Aircraft Parts and Development A-9 series aeroplanes, demonstrates the dynamic nature of airworthiness management. The cancellation of this particular AD on 28 August 2008, due to the resolution of the unsafe condition, highlights the responsive and safety-focused approach of Australian aviation regulation. Although this AD cancellation did not require public consultation or a Regulatory Impact Statement, it was made in accordance with the legislative requirements and represents a critical step in maintaining the safety and airworthiness of Australian-registered aircraft.