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/BN-2/37 affecting Pilatus Britten-Norman BN-2 model aeroplanes. CASA has assessed this AD and as a result has cancelled Australian AD/BN-2/37. The cancellation will become effective on 18 December 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 Group, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988 was enacted to ensure the safety of air navigation and to provide a legislative framework for the regulation of civil aviation within Australia. This Act empowers the Governor-General to create regulations that serve the interests of aviation safety. Under the authority granted by this Act, the Civil Aviation Safety Regulations 1998 were introduced, which include provisions for the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA) to ensure the continuing airworthiness of aircraft and aeronautical products. The objective of these regulations is to align with international standards, particularly those set forth in Annex 8 to the Convention on International Civil Aviation, which mandates the State of Design to maintain and provide necessary information for the airworthiness of aircraft types. The Civil Aviation Safety Authority, as Australia’s national airworthiness authority, is responsible for issuing ADs based on assessments of information provided by the State of Design, thereby ensuring compliance with both national and international safety standards.
Scope and Application
The Civil Aviation Safety Regulations 1998, under section 39.001, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specified kinds of aircraft or aeronautical products. These directives are legislative instruments, subject to disallowance under the Acts Interpretation Act 1901, and must comply with the Legislative Instruments Act 2003. The issuance of ADs is guided by Annex 8 to the Convention on International Civil Aviation, which designates the State of Design with overall responsibility for ensuring the continuing airworthiness of an aircraft type. This necessitates the provision of necessary information to the appropriate States of Registry. The State of Registry, in turn, is responsible for the continuing airworthiness of individual aircraft, requiring them to develop or adopt requisite measures. In the context of Australian registered aircraft, CASA, as the national airworthiness authority, assesses ADs issued by the State of Design and may issue Australian ADs to enforce the requirements. For instance, CASA issued and subsequently cancelled AD/BN-2/37 for Pilatus Britten-Norman BN-2 model aeroplanes, effective from 18 December 2008, due to the cessation of the unsafe condition, without the need for a replacement AD. The cancellation process, being a fulfilment of Australia’s international obligations, did not necessitate public consultation or a Regulatory Impact Statement.
Key Provisions
The Civil Aviation Act 1988, and particularly section 98, empowers the Governor-General to create regulations that promote the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 further allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. Under subregulation 39.001(5), an AD is a disallowable instrument, and therefore a legislative instrument in accordance with section 6 of the Legislative Instruments Act 2003. Annex 8 of the Convention on International Civil Aviation assigns the State of Design the primary responsibility for the continuing airworthiness of an aircraft type, mandating that it provide necessary information to ensure the airworthiness of the type to the relevant States of Registry. This responsibility is complemented by the State of Registry’s duty to develop or adopt requirements to ensure the continuing airworthiness of individual aircraft.
The obligations imposed by these provisions are clear and significant. The State of Design must provide critical information and directives to ensure the continuing airworthiness of aircraft types, which must then be assessed and potentially adapted by the State of Registry. CASA, as Australia's national airworthiness authority, must review the information provided by the State of Design and issue appropriate ADs to mandate the necessary requirements for aircraft on the Australian Register. This process ensures that Australian aircraft meet the international safety standards set forth by the Convention on International Civil Aviation. CASA’s recent cancellation of AD/BN-2/37 affecting Pilatus Britten-Norman BN-2 model aeroplanes, effective from 18 December 2008, exemplifies this regulatory duty, as it was determined that the unsafe condition no longer existed.
The consequences of non-compliance with these regulations can be severe. While the Act and Regulations do not explicitly detail specific offences or penalties for breaching airworthiness directives, non-compliance could potentially lead to significant civil or criminal penalties under other sections of the Civil Aviation Act 1988. For instance, failure to comply with airworthiness requirements can result in actions such as grounding of the aircraft, fines, or even criminal charges, depending on the severity of the breach and its impact on aviation safety. Furthermore, operators who fail to adhere to ADs may face additional administrative actions, including legal proceedings, which could further compound the financial and operational repercussions.