AD/PA-25/21 Amdt 3 - Top Longeron - Modification - CANCELLED

Overview

The Civil Aviation Act 1988, enacted by the Parliament of Australia, provides a legal framework to ensure the safety of air navigation and the continuing airworthiness of aircraft. The Act empowers the Governor-General to make regulations for the purposes of the Act and in the interests of the safety of air navigation, as per section 98. One such regulation, 39.001 of the Civil Aviation Safety Regulations 1998, allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain types of aircraft or aeronautical products, with these directives being considered legislative instruments under the Legislative Instruments Act 2003. The policy objective of these regulations is to align with international obligations under the Convention on International Civil Aviation, specifically Annex 8, which mandates that the State of Design has the overarching responsibility for the continuing airworthiness of an aircraft type, while the State of Registry is responsible for the airworthiness of individual aircraft. The cancellation of an airworthiness directive by CASA, as seen in the case of AD/PA-25/21 Amdt 3 affecting Piper PA-25-235 aircraft, reflects Australia's adherence to these international standards.

Scope and Application

The Civil Aviation Act 1988 applies to all individuals, entities, and industries involved in civil aviation within Australia, including aircraft operators, manufacturers, and maintenance providers, as well as the Australian public who may be affected by aviation safety. The Civil Aviation Safety Regulations 1998, under which airworthiness directives (ADs) are issued, extend this regulation to ensure the continuing airworthiness of aircraft and aeronautical products. These regulations provide the Civil Aviation Safety Authority (CASA) with the authority to issue ADs, which are legislative instruments, to enhance safety in air navigation as per section 98 of the Civil Aviation Act 1988. ADs, which are typically issued by ICAO Contracting States, are a crucial form of continuing airworthiness information, with the State of Registry holding responsibility for the ongoing airworthiness of individual aircraft. This specific AD affecting Piper PA-25-235 aircraft was cancelled by CASA due to Australia's obligations under the Convention on International Civil Aviation, with no public consultation required as determined by the Office of Best Practice Regulation. The AD was made by the Manager, Airframes and Structures, in the Airworthiness Engineering Group on behalf of CASA, in accordance with subsection 84A(2) of the Act.

Key Provisions

The Civil Aviation Act 1988 (section 98) allows the Governor-General to create regulations for the safety of air navigation, while regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. This regulatory framework is designed to ensure that aircraft maintain their airworthiness over time, which is critical for safety and compliance with international standards. These airworthiness directives are legislative instruments (section 6 of the Legislative Instruments Act 2003) and are essential for maintaining the continuing airworthiness of aircraft types as outlined in Annex 8 to the Convention on International Civil Aviation. The State of Design is primarily responsible for ensuring that an aircraft type remains airworthy, and it must provide necessary information to the State of Registry, which is responsible for the individual aircraft. This division of responsibility ensures that both the design and the specific operational circumstances of an aircraft are considered in maintaining its airworthiness. The obligations imposed by these regulations include the requirement for CASA to issue ADs when necessary to address safety issues, and for the State of Registry to implement the directives to maintain the airworthiness of the aircraft. The State of Design must also provide necessary information to support these efforts. These obligations are integral to ensuring that aircraft meet the highest safety standards, both domestically and internationally. Breaches of these regulations can lead to serious consequences. While the Civil Aviation Act 1988 does not explicitly detail specific offences or penalties for failing to comply with airworthiness directives, the general legal framework under which CASA operates implies severe consequences for non-compliance. Such breaches could potentially result in civil or criminal penalties, reflecting the critical importance of air safety. The exact penalties would depend on the nature and severity of the breach, but they could include fines or other sanctions as deemed appropriate by the regulatory authority.