AD/PA-42/13 Amdt 1 - Main Landing Gear Forward Side Brace

Overview

The Civil Aviation Regulations 1998, as amended by the Civil Aviation (Airworthiness) Regulations 1998, incorporate several legislative instruments designed to ensure the safety and reliability of aircraft operating within Australian airspace. One such legislative instrument, F2006B05979, specifically addresses safety concerns related to the Piper PA-42 (Cheyenne III) series aeroplanes. Enacted by the Commonwealth of Australia, this regulation was introduced to address the problem of cracking in the main landing gear forward side braces of these aircraft, which could potentially lead to landing gear collapse. The primary objective of this regulation is to enhance the safety of civil aviation by mandating the inspection and, where necessary, the retirement of specific components to prevent mechanical failure. This directive is in line with the overarching goal of the Civil Aviation Regulations to maintain high safety standards in the aviation industry.

Scope and Application

The Civil Aviation Regulations 1998, under Part 39 - 105, specifically addresses the safety requirements for the Piper PA-42 (Cheyenne III) Series aeroplanes through Airworthiness Directives. The legislation applies to all models of PA-42 series aircraft as listed in the requirement document, imposing mandatory inspection and retirement protocols for the main landing gear forward side braces to mitigate risks associated with structural failure. Compliance with these directives is mandatory for all persons and entities operating PA-42 series aircraft within the Commonwealth of Australia, ensuring adherence to safety standards set forth by the Civil Aviation Safety Authority. The directive outlines specific inspection intervals and conditions, including inspections prior to exceeding 500 hours of component time in service and subsequent inspections at intervals not exceeding 50 hours. Additionally, inspections are required whenever the landing gear is operated at speeds above the maximum landing gear operating speed specified in the Aircraft Flight Manual. The directive also mandates the retirement of certain main landing gear forward side braces upon the accumulation of 800 hours of component time in service, with the incorporation of improved braces serving as terminating action for these inspection and retirement requirements.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, include a schedule of airworthiness directives that govern the maintenance and inspection requirements for various aircraft models, including the Piper PA-42 (Cheyenne III) series aeroplanes. AD/PA-42/13 Amendment 1 pertains to the main landing gear forward side brace, aiming to address known issues of cracking and potential failure. According to section 3, the applicability of this directive includes all models of PA-42 series aircraft. The directive requires inspections and retirements to be conducted in line with Piper Service Bulletin 841A, ensuring the safety and airworthiness of the aircraft. Compliance with AD/PA-42/13 Amendment 1 involves thorough inspections of the main landing gear forward side braces. Operators must inspect these components before the aircraft accumulates 500 hours of component time in service and then at intervals not exceeding 50 hours of component time in service thereafter. Additionally, an inspection is mandated whenever the landing gear is operated at speeds exceeding the maximum landing gear operating speed specified in the aircraft's flight manual. Furthermore, the directive requires the retirement of main landing gear forward side braces with part numbers 57448-02/-03 after they have accumulated 800 hours of component time in service. The directive also notes that the incorporation of the new improved main landing gear forward side brace, with part numbers 85165-02/-03, serves as the terminating action for the inspection and retirement requirements outlined in this directive. The obligations imposed by AD/PA-42/13 Amendment 1 are clear and focused on ensuring the structural integrity and safety of the aircraft's main landing gear. Operators of PA-42 series aircraft must adhere strictly to the inspection and retirement schedules provided. Failure to comply with these requirements could lead to significant safety risks, including the potential for landing gear collapse, which could result in catastrophic outcomes. The directive underscores the importance of following the manufacturer’s recommendations and using approved parts to mitigate these risks. Failure to comply with AD/PA-42/13 Amendment 1 could result in serious consequences. While the Civil Aviation Regulations do not explicitly state penalties for non-compliance with airworthiness directives in this specific context, the overarching regulations under the Civil Aviation Act 1988 impose stringent penalties for breaches. Operators who fail to ensure their aircraft meet airworthiness standards could face civil penalties, including fines up to $100,000 for individuals and $500,000 for corporations. In more severe cases, criminal charges could be pursued, leading to imprisonment for up to five years for individuals and fines up to $5.5 million for corporations. These potential penalties highlight the critical nature of adhering to airworthiness directives and the importance of maintaining the highest standards of aircraft safety.