AD/PA-32/34 Amdt 1 - Main Landing Gear Cylinder Cracking

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Parliament, provide a comprehensive framework for ensuring the safety and regulation of civil aviation in Australia. Among the numerous amendments and additions to these regulations is the Legislative Instrument F2006B05829, which amends the Airworthiness Directives for Piper PA-32 (Cherokee Six) Series Aeroplanes. This amendment was introduced to address the identified issue of main landing gear cylinder cracking, particularly at the base of each torque link attachment lug. The policy objective behind this amendment is to ensure that all models with fixed landing gear are subject to regular and stringent visual inspections to mitigate any safety risks associated with cylinder cracking. By aligning the compliance requirements with the varying periodic inspection intervals, the legislation aims to enhance the overall airworthiness and safety of the affected aircraft, thereby protecting both the crew and passengers.

Scope and Application

The Civil Aviation Regulations 1998, specifically under Part 39 - 105, pertain to the Civil Aviation Safety Authority’s (CASA) Schedule of Airworthiness Directives, which apply to all civil aviation activities within Australia. These regulations govern the airworthiness of aircraft, including the Piper PA-32 (Cherokee Six) series aeroplanes, ensuring that they meet safety standards set by CASA. The directive AD/PA-32/34 Amendment 1, issued in 12/85, mandates that all models with fixed landing gear must undergo a visual inspection of the landing gear cylinder for cracks at the base of each torque link attachment lug. This inspection must be conducted within 100 hours of time in service after 31 December 1974, and subsequently at each issuance of a new Maintenance Release. This regulation applies nationally across Australia, and compliance is non-negotiable to maintain the airworthiness of the specified aircraft models. No exclusions, exemptions, or thresholds are explicitly stated in this directive, and its application may be further extended or detailed through subordinate instruments issued by CASA.

Key Provisions

The Civil Aviation Regulations 1998, specifically within Part 39 - 105, address the Airworthiness Directives for various aircraft, including the Piper PA-32 (Cherokee Six) Series Aeroplanes. AD/PA-32/34 Amendment 1 (AD/PA-32/34 Amdt 1), dated 12/85, pertains to the main landing gear cylinder cracking issue in these aircraft models. The applicability of this directive extends to all models equipped with fixed landing gear. According to section 1, the directive requires a visual inspection of the landing gear cylinder for cracks specifically at the base of each torque link attachment lug. Compliance with this directive involves inspecting the specified areas within 100 hours of time in service after 31 December 1974 and subsequently at each issuance of a new Maintenance Release. This requirement ensures that any potential structural weaknesses are identified and addressed promptly, enhancing the overall safety and airworthiness of the aircraft. The directive aims to mitigate the risk of catastrophic failure by mandating regular and thorough visual inspections. The obligations imposed by this directive are clear and specific. Aircraft owners, operators, and maintenance personnel must ensure that the stipulated inspections are conducted within the prescribed timeframes. This includes documenting each inspection and ensuring that any identified issues are rectified before the aircraft returns to service. By adhering to these requirements, stakeholders contribute to maintaining the safety standards mandated by the Civil Aviation Regulations. Non-compliance with these directives could potentially lead to severe consequences, including grounding of the aircraft, fines, or other regulatory actions. In terms of potential breaches, the Civil Aviation Regulations impose significant penalties for non-compliance. While the specific penalties for breaching AD/PA-32/34 Amdt 1 are not detailed in the text provided, general provisions within the Civil Aviation Act 1988 outline that offences can result in substantial fines and even imprisonment. The exact penalties would depend on the severity of the breach and the specific regulations violated. This underscores the importance of strict adherence to the outlined inspection procedures to avoid severe civil and criminal consequences.