AD/AC/23 - Main Landing Gear Struts - Inspection and Modification

Overview

The Civil Aviation Safety Authority, pursuant to the Civil Aviation Act 1988, has introduced the Civil Aviation Regulations 1998 (as amended) to ensure the safety and efficiency of civil aviation within Australia. This legislative framework includes detailed regulations on the maintenance and operation of aircraft, aiming to address the need for stringent safety standards to protect passengers, crew, and the general public. One particular legislative instrument, F2006B02082, pertains to the issuance of an airworthiness directive for the Twin Commander series aeroplanes (Gulfstream/Rockwell/Aerocommander 500, 600, and 700), specifically focusing on the inspection and modification of main landing gear struts. This directive was enacted to mitigate risks associated with potential structural failures in the specified aircraft models, thereby ensuring continued compliance with safety regulations and enhancing overall aviation safety. The Civil Aviation Regulations 1998 are overseen by the Civil Aviation Safety Authority, with the overarching objective of maintaining high standards of safety in the aviation industry. F2006B02082, as part of this regulatory framework, exemplifies the commitment to addressing specific safety concerns through detailed directives. The policy objective of this instrument is to mandate immediate compliance with the specified maintenance procedures, ensuring that the affected aircraft meet the necessary safety criteria and thereby reducing the risk of in-flight incidents. The directive applies to all Twin Commander models with specific serial numbers, underscoring the importance of targeted safety measures to protect the aviation community.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertain to the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, which includes directives concerning the Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600, and 700) Series Aeroplanes. This legislation applies to all aircraft models within the specified serial numbers, namely 871, 875, and 893 to 1193. The primary focus of this directive is the inspection and modification of the main landing gear struts, as detailed in Aero Commander Service Bulletin No. 80. Compliance with these directives is mandatory and must be achieved forthwith, ensuring that all affected aircraft are inspected and any necessary modifications are implemented immediately. The regulations are binding across the Commonwealth of Australia, encompassing all relevant entities and individuals operating within this jurisdiction. While the regulations themselves do not explicitly detail exclusions, exemptions, or thresholds, they are subject to interpretation and application through subordinate instruments, which may provide further clarification on specific scenarios or conditions.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998, specifically Part 39 - 105, pertain to the issuance of Airworthiness Directives (AD) by the Civil Aviation Safety Authority (CASA). Section 39.105 specifies that CASA can issue ADs to ensure the airworthiness of aircraft, as seen in the AD/AC/23 concerning Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) series aeroplanes. The directive mandates the inspection and modification of main landing gear struts for certain serial numbers (871, 875, and 893 to 1193). Compliance is required forthwith, as indicated by the compliance directive in Section 5/62. The obligations imposed by this legislation include a requirement for operators of Twin Commander aircraft within the specified serial number range to conduct thorough inspections and necessary modifications to their main landing gear struts. This is in line with the guidance provided by Aero Commander Service Bulletin No. 80. The directive mandates that these inspections and modifications must be carried out without delay, ensuring that the aircraft remain airworthy and compliant with safety standards. The specific compliance directive, 5/62, underscores the urgency and importance of these actions. Should any party or entity fail to comply with the AD/AC/23 requirements, several consequences may arise. Under the Civil Aviation Act 1988, non-compliance with an AD can result in civil penalties. Specifically, Section 94 of the Act allows CASA to issue infringement notices for breaches, with penalties up to $16,500 for individuals and $82,500 for corporations. More severe breaches may lead to prosecution under Section 96, which can result in higher penalties and even imprisonment, depending on the severity of the offence and any aggravating factors. The legislation is clear that such failures can have significant legal ramifications, impacting both the safety of the aircraft and the operational integrity of the entity involved.