AD/SC7/23 - Main Landing Gear Lever

Overview

The Civil Aviation Regulations 1998, enacted by the Commonwealth of Australia, address critical safety concerns in the aviation sector, particularly in relation to the maintenance and airworthiness of aircraft. Part 39 of these regulations focuses on airworthiness directives, which are legally enforceable rules regarding the design, construction, maintenance, preventative maintenance, repair, and alteration of aircraft. One such directive, AD/SC7/23, specifically pertains to Skyvan series aeroplanes, mandating the inspection and rework of the main landing gear levers to ensure continued compliance with safety standards and extend the service life of the aircraft. This directive is aimed at preventing potential mechanical failures that could compromise the safety of the aircraft and its occupants. The Civil Aviation (Safety) Regulations 1998 were established by the Australian Parliament to provide a comprehensive regulatory framework ensuring the safety of civil aviation operations within Australia. The policy objective behind these regulations is to safeguard the public by imposing stringent safety standards on aircraft operations, maintenance, and airworthiness. The directive for Skyvan series aeroplanes is one of many measures designed to maintain the highest safety standards in the aviation industry, ensuring that all aircraft meet rigorous maintenance and operational requirements.

Scope and Application

The Civil Aviation Regulations 1998, as amended by the Legislative Instrument F2006B06797, pertain to the operational safety and maintenance standards of civil aviation within Australia. Specifically, Part 39 - 105 applies to all Skyvan 3, 3A, 3M, and Skyliner series aeroplanes, mandating the inspection and rework of the main landing gear levers according to Dowty Mandatory Service Bulletin (MSB) 32-9M, Revision 3. This requirement ensures that these aircraft meet safety standards, extending their service life up to a specified number of landings based on their all-up weight. Compliance with these directives is mandatory, either before a specified date or in accordance with the intervals set out in the referenced service bulletin. This regulation is enforceable across the Commonwealth of Australia, with the Australian Civil Aviation Safety Authority overseeing its implementation and compliance. The regulation does not specify any exclusions or exemptions, implying that all relevant aircraft must adhere to the outlined safety measures. The application of these directives may be further extended or modified through subordinate instruments issued by the Civil Aviation Safety Authority.

Key Provisions

The Civil Aviation Regulations 1998, under Part 39 - 105, specifically the Schedule of Airworthiness Directives (AD/SC7/23), pertains to the maintenance and inspection of the main landing gear levers on Skyvan 3, 3A, 3M, and Skyliner series aeroplanes. Section (1) of the legislation mandates that these aircraft undergo inspection and rework of their main landing gear levers in strict adherence to the guidelines set out in Dowty Mandatory Service Bulletin (MSB) 32-9M, Revision 3. This requirement is intended to ensure that the components meet safety standards, extending their service life to a specified number of landings. The obligations under this legislation are clear: all owners and operators of the affected Skyvan aeroplanes must ensure that the inspections and necessary reworks are carried out either before 17 February 1996 or in accordance with the specific thresholds and intervals outlined in Dowty MSB 32-9M, Revision 3. Failure to comply with these requirements can result in significant safety risks, as the directive aims to mitigate potential failures in the landing gear system. Owners and operators must therefore keep meticulous records of all inspections and reworks conducted, ensuring that they meet the stipulated standards to maintain airworthiness. The consequences for non-compliance with these provisions are outlined in the legislation, with serious implications for both civil and criminal liabilities. Breaches of the AD/SC7/23 directive can lead to enforcement actions by the Civil Aviation Safety Authority (CASA). The penalties for non-compliance can include fines and, in severe cases, the grounding of the aircraft until the required maintenance is performed. The exact penalties are not specified in the excerpt but generally, they can be substantial, reflecting the critical nature of the safety measures being enforced.