AD/TSA-600/24 - Nose Landing Gear Support Structure - Inspection and Modification - CANCELLED

Overview

The Civil Aviation Act 1988, along with the Civil Aviation Safety Regulations 1998, was enacted to ensure the safety of air navigation and the continuing airworthiness of aircraft. Under these regulations, the Civil Aviation Safety Authority (CASA) is empowered to issue airworthiness directives (ADs), which are legislative instruments that serve as critical mechanisms for maintaining the safety standards of aircraft types and aeronautical products. This legislative framework was developed to meet Australia's obligations under international agreements, such as the Convention on International Civil Aviation, which places responsibility on the State of Design to ensure continuing airworthiness and mandates the provision of necessary information to the State of Registry. In this context, CASA issued and subsequently cancelled AD/TSA-600/24 for Aerostar aircraft, reflecting Australia's compliance with international standards and obviating the need for public consultation or a Regulatory Impact Statement. The cancellation of this AD is a procedural measure taken by CASA, in line with the legislative provisions of the Civil Aviation Act 1988 and the oversight responsibilities delineated in the Civil Aviation Safety Regulations 1998.

Scope and Application

The Civil Aviation Safety Regulations 1998, under the Civil Aviation Act 1988, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These ADs are legislative instruments that mandate compliance to ensure the safety of air navigation. They are issued in accordance with Annex 8 of the Convention on International Civil Aviation, which assigns the State of Design the responsibility for the continuing airworthiness of an aircraft type and requires it to provide necessary information to the States of Registry. In Australia, the State of Registry, through CASA, is tasked with ensuring the continuing airworthiness of individual aircraft and must implement requirements to maintain this airworthiness. The ADs are therefore applicable to aircraft registered in Australia and the entities or individuals responsible for their maintenance and operation. The geographic reach of these regulations is national, as CASA operates under the jurisdiction of the Commonwealth of Australia. Although the ADs are legislative instruments, they do not require public consultation or a Regulatory Impact Statement, as determined by the Office of Best Practice Regulation, given their specific nature and the international obligations underpinning their issuance.

Key Provisions

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 together provide the legislative framework for ensuring the safety of air navigation in Australia. Section 98 of the Civil Aviation Act 1988 empowers the Governor-General to make regulations necessary for the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for types of aircraft or aeronautical products. An AD is a legislative instrument, subject to disallowance under section 46A of the Acts Interpretation Act 1901 and regulated by the Legislative Instruments Act 2003. The obligations imposed by these regulations include the responsibility of the State of Design to ensure the continuing airworthiness of an aircraft type, as outlined in Annex 8 to the Convention on International Civil Aviation. The State of Design must provide necessary information to appropriate States of Registry, which are in turn responsible for the continuing airworthiness of individual aircraft. CASA, as the State of Registry, must develop or adopt requirements to ensure the continuing airworthiness of aircraft within Australia. The AD/TSA-600/24 affecting Aerostar aircraft, issued by CASA, has been reviewed and subsequently cancelled effective 4 June 2009, with no replacement AD required. Given Australia's international obligations, there has been no public consultation on this cancellation, and the Office of Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement. The cancellation of 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. In terms of breaches and penalties, the Civil Aviation Safety Regulations 1998 and the Civil Aviation Act 1988 include provisions for offences and penalties. Non-compliance with airworthiness directives can lead to civil penalties, including fines and potential imprisonment for serious breaches. The exact penalties depend on the nature and severity of the breach, with maximum penalties potentially reaching up to several thousand dollars in fines and imprisonment terms ranging from minor to significant durations, depending on the circumstances. The regulations and act ensure that all parties involved adhere to strict safety standards to maintain the integrity and safety of air navigation.