Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, are designed to ensure the safety and efficiency of civil aviation within the country. Specifically, PART 39 - 105 of these regulations addresses the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, which includes detailed instructions on maintaining the airworthiness of certain aircraft. One such directive, AD/FU24/61, pertains to the FU 24 Series Aeroplanes manufactured by Airparts (NZ) Ltd., and mandates the inspection and replacement of main landing gear torque link brackets P/N 245129L and 245129R on aircraft supplied with release notes dated between 27 March 1980 and 5 May 1983. This directive was introduced to address the problem of bracket failures attributed to incorrect heat treatment, ensuring that these components are removed from service and replaced within 100 hours of time in service after 31 July 1983. The overarching policy objective is to maintain the highest standards of aviation safety. The legislative instrument F2006B10007, issued under the authority of the Civil Aviation Act 1988, reinforces the need for strict adherence to airworthiness directives to prevent in-service failures and ensure the safety of passengers and crew. The Civil Aviation Safety Authority issues these directives to mitigate risks associated with specific components, as evidenced by AD/FU24/61, which targets a known issue with the specified torque link brackets. Compliance with these directives is mandatory for all operators of the affected aircraft to ensure continued airworthiness and adherence to safety standards.

Scope and Application

The Civil Aviation Regulations 1998, as part of Part 39 - 105 and under the authority of the Civil Aviation Safety Authority, govern the airworthiness directives issued for specific aircraft components. Specifically, Airworthiness Directive AD/FU24/61 pertains to the FU 24 Series Aeroplanes manufactured by Airparts (NZ) Ltd., focusing on the main landing gear torque link brackets. This directive applies to all Series FU24.7/83 aircraft, requiring the removal from service of torque link brackets with part numbers 245129L and 245129R, which were supplied on release notes dated between 27 March 1980 and 5 May 1983. The directive mandates compliance within 100 hours of time in service after 31 July 1983, addressing a safety issue where failure of the bracket has been linked to incorrect heat treatment. This regulation ensures that the affected aircraft and their components are inspected and, if necessary, replaced to maintain airworthiness standards and mitigate safety risks. The directive applies nationally, under the Commonwealth's jurisdiction, and its enforcement is integral to ensuring the safety of civil aviation operations within Australia.

Key Provisions

The Civil Aviation Regulations 1998, specifically within Part 39, Section 105, outline the Civil Aviation Safety Authority's (CASA) schedule of airworthiness directives for various aircraft components. The legislation in question, AD/FU24/61, pertains to the FU 24 Series Aeroplanes manufactured by Airparts (NZ) Ltd. The directive mandates the inspection and potential replacement of main landing gear torque link brackets. Section 105 directs that all Series FU24.7/83 aircraft must remove from service any torque link brackets with part numbers 245129L and 245129R if these were supplied with release notes dated between 27 March 1980 and 5 May 1983. This requirement is crucial to ensure the safety and airworthiness of the aircraft. Compliance with AD/FU24/61 is mandatory and must be carried out within 100 hours of time in service following the directive's effective date of 31st July 1983. This stipulation necessitates that operators and owners of the affected aircraft meticulously adhere to the timelines and specifications provided in the directive. The directive aims to address a known safety issue, specifically the failure of torque link brackets due to incorrect heat treatment, which has been identified as a significant risk factor for in-service failures. The obligations imposed by this directive are stringent and require operators to conduct thorough inspections of the specified torque link brackets and replace any that meet the criteria outlined. Operators must ensure that any replacement parts used are of the correct specifications and have undergone appropriate quality assurance processes to mitigate the risk of failure. Detailed records of inspections and any replacements performed must be maintained, and these records are subject to CASA's scrutiny during routine audits or investigations. Failure to comply with the provisions of AD/FU24/61 can result in serious legal and safety repercussions. Operators found to be in breach of the directive may face enforcement actions by CASA, which can include fines, operational restrictions, or even grounding of the affected aircraft until compliance is achieved. The potential civil and criminal penalties for non-compliance can be significant, with maximum penalties outlined in the broader framework of the Civil Aviation Regulations 1998. These penalties serve as a deterrent to non-compliance and underscore the importance of adhering to airworthiness directives to maintain the highest safety standards in aviation.