Overview

The Civil Aviation Regulations 1998, specifically within Part 39 - 105, encompass various Airworthiness Directives designed to maintain the safety and reliability of aircraft operating in Australia. One such directive, AD/PA-42/12, targets the Piper PA-42 (Cheyenne III) Series aeroplanes. This legislation was enacted to address the problem of wire damage caused by the engine electrical harness and starter generator cables rubbing against the wing leading edge inboard nose rib, which could potentially lead to electrical system failures. The directive was issued by the Civil Aviation Safety Authority, following reports of such issues, and aims to ensure compliance with Piper S.B. No. 835 within 50 hours of time in service after 31 July 1986. The Piper PA-42 (Cheyenne III) Airworthiness Directive, specifically AD/PA-42/12, was introduced to mandate corrective actions to prevent the aforementioned electrical system failures. The directive applies to certain serial numbers of the PA-42-1000 Cheyenne 400LS models, requiring compliance within 50 hours of time in service following the issuance date. This legislative measure was introduced by the Commonwealth of Australia through the Civil Aviation Safety Authority, with the clear policy objective of enhancing the safety of civil aviation by mitigating risks associated with electrical harness and starter generator cable damage.

Scope and Application

The Civil Aviation Regulations 1998, under Part 39, imposes specific airworthiness directives on certain aircraft types, including the Piper PA-42 (Cheyenne III) Series Aeroplanes, particularly those identified by specific serial numbers. These directives are applicable to the specified aircraft models and require adherence to certain safety standards to mitigate the risk of electrical system failures due to wire damage. The regulation mandates compliance within a specified timeframe after a particular date, ensuring that the safety of the aircraft and its occupants is maintained. The geographical and jurisdictional reach of these regulations extends throughout the Commonwealth of Australia, applying to all relevant aircraft operating within its airspace. There are no stated exclusions or exemptions within the text provided, and the application of these directives is not extended or restricted by subordinate instruments within the scope of the given text. The regulations are designed to ensure that the specified aircraft meet the necessary safety standards to prevent potential hazards.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998, Part 39 - 105, which concern the Airworthiness Directives for Piper PA-42 (Cheyenne III) Series Aeroplanes, specifically include section AD/PA-42/12 (1). This section mandates compliance with Piper Service Bulletin No. 835, focusing on the engine electrical harness and starter generator cables. This requirement applies to specific serial numbers of the PA-42-1000 Cheyenne 400LS models, namely those ranging from 42-5527002 to 42-5527006, 42-5527008 to 42-5527021, and 42-5527023 to 42-5527032. The directive requires that corrective actions be taken within a specific timeframe: within 50 hours of time in service after 31 July 1986. This timeframe is crucial for maintaining the safety of these aircraft. The obligations imposed by this legislation on the relevant parties, such as aircraft operators and owners, are clear and stringent. They must ensure that the specified corrective actions outlined in Piper Service Bulletin No. 835 are implemented promptly. This involves inspecting the engine electrical harness and starter generator cables for any damage and ensuring they do not come into contact with the wing leading edge inboard nose rib, which could cause electrical system failures. The adherence to this directive is essential for maintaining the airworthiness of the aircraft and ensuring safe operations. Failure to comply with these directives can result in significant legal consequences. The regulations outline potential offences and penalties for non-compliance, although specific penalties are not detailed in the provided text. However, generally, under civil aviation law, non-compliance can lead to enforcement actions, including fines, suspension or revocation of airworthiness certificates, and possible criminal charges. The severity of these penalties underscores the importance of adhering to the directives to avoid adverse legal and safety outcomes. In summary, the Civil Aviation Regulations 1998, Part 39 - 105, mandate specific actions regarding the engine electrical harness and starter generator cables of certain Piper PA-42 (Cheyenne III) Series Aeroplanes. These requirements are designed to prevent potential electrical system failures and ensure the continued safety and airworthiness of the affected aircraft. Non-compliance with these directives can result in significant legal and safety repercussions, emphasising the importance of prompt and effective action by aircraft operators and owners.