AD/BEA 121/20 - Throttle Cable Assembly

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, serve as a fundamental legal framework governing the safety and operation of civil aviation within Australia. A specific legislative instrument within this framework, F2006B03585, addresses issues related to the airworthiness directives for the Beagle B121 (Pup) series aeroplanes. This directive was introduced to ensure that the throttle cable assemblies for these aircraft models meet necessary safety standards, thereby mitigating any potential risks associated with faulty components. The policy objective behind this regulation is to maintain and enhance aviation safety through the enforcement of stringent airworthiness requirements, ensuring that all aircraft operating within Australian airspace adhere to the specified safety standards.

Scope and Application

The Civil Aviation Regulations 1998, specifically under Part 39 - 105 within the Civil Aviation Safety Authority Schedule of Airworthiness Directives, govern the airworthiness of certain aircraft. This regulation applies directly to all model B121 Series 2 and Series 3 aeroplanes manufactured by Beagle. The requirement outlined in the regulation mandates that the throttle cable assembly P/N BE.47.20017 for Series 2 aircraft must be replaced with P/N BE.47.20037, and for Series 3 aircraft, P/N BE.47.30019/1 must be replaced with P/N BE.47.30025. This directive is in alignment with Scottish Aviation SB No. B121/74. The compliance deadline for these changes is set for 31 May 1978, and the scope of this regulation is confined to the specified aircraft models within the Commonwealth of Australia, ensuring adherence to stringent safety standards set by the Civil Aviation Safety Authority.

Key Provisions

The primary sections of the Civil Aviation Regulations 1998 (Regulations) under PART 39 - 105, specifically in relation to the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives for Beagle B121 (Pup) Series Aeroplanes (AD/BEA 121/20), require that the throttle cable assemblies of all model B121 Series 2 and 3 aircraft must be replaced. Section 39.105 of the Regulations mandates that the throttle cable assembly P/N BE.47.20017 must be replaced with P/N BE.47.20037 for Series 2 aircraft, and P/N BE.47.30019/1 must be replaced with P/N BE.47.30025 for Series 3 aircraft. Compliance with these directives is mandatory and must be completed before 31 May 1978, as per the requirements outlined in the Regulations. The obligations and requirements imposed by these Regulations are specific to the aircraft owners, operators, and maintenance providers. They must ensure that the required changes to the throttle cable assemblies are implemented in accordance with the stipulated deadlines. Owners and operators must verify that the specified parts are installed correctly and that all maintenance records reflect these changes. Maintenance providers, on the other hand, are responsible for carrying out the replacement of the throttle cable assemblies as per the directives and ensuring that the aircraft meet the necessary airworthiness standards. This includes conducting thorough inspections and obtaining the appropriate certification from CASA. Failure to comply with the Airworthiness Directives can result in serious consequences, both civil and criminal. Under Section 39.105 of the Regulations, non-compliance with the specified directives may lead to enforcement actions by CASA. The penalties for non-compliance can include fines, administrative penalties, and potential grounding of the aircraft. In severe cases, criminal charges may be brought against individuals or companies responsible for the non-compliance, with maximum penalties depending on the severity of the breach and any resulting harm or risk to aviation safety. The Regulations underscore the importance of adhering to these directives to ensure the safety and airworthiness of the aircraft in operation.