AD/AC/50 - Unfeathering Pump Supply Line - Replacement

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, form a fundamental part of the regulatory framework governing civil aviation within the country. This comprehensive legislation, as amended over the years, aims to ensure the safety and efficiency of air travel by setting standards for aircraft operations, maintenance, and certification. The specific legislative instrument referenced here, F2006B02110, pertains to the Civil Aviation Safety Authority’s issuance of airworthiness directives for certain aircraft models, in this instance addressing the Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600, and 700) series aeroplanes. The policy objective of such directives is to mitigate potential safety risks by mandating specific maintenance actions, in this case, the replacement of the unfeathering pump supply line for model 690 with serial numbers 11001 to 11063, to be completed within 100 hours of service after 31 August 1973. The enactment of these regulations by the Civil Aviation Safety Authority is driven by the need to ensure that all aircraft operating within Australian airspace meet stringent safety standards. This particular airworthiness directive aims to address a specific identified problem or gap in the operational safety of the specified aircraft models by requiring compliance with detailed maintenance instructions as outlined in relevant service bulletins or federal aviation administration airworthiness directives. The overarching goal is to enhance the safety of air travel by ensuring that known issues are proactively managed through regulatory oversight and enforcement.

Scope and Application

The Civil Aviation Safety Authority (CASA) regulations, specifically PART 39 - 105, apply to the Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) series aeroplanes, targeting the replacement of the unfeathering pump supply line. This regulation mandates compliance for Model 690 aircraft with serial numbers ranging from 11001 to 11063. The compliance requirement must be met within 100 hours of time in service after 31 August 1973, as stipulated in Aero Commander Service Bulletin No. 123A or the Federal Aviation Administration (FAA) AD 73-13-9. This legislation applies at a national level under the Commonwealth of Australia, ensuring uniform safety standards across the country. The regulation is specific to the mentioned aircraft models and serial numbers, and no exclusions or exemptions are explicitly stated in the provided text. The application of this regulation is direct, without the need for further extension or restriction through subordinate instruments.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning the Civil Aviation Safety Authority Schedule of Airworthiness Directives, require compliance with specific airworthiness directives for certain aircraft types. For the Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600 and 700) Series Aeroplanes, AD/AC/50 mandates the replacement of the unfeathering pump supply line for model 690 with serial numbers ranging from 11001 to 11063. Compliance must be achieved within 100 hours’ time in service following 31 August 1973, as outlined in either Aero Commander Service Bulletin No. 123A or FAA AD 73-13-9. This legislation imposes specific obligations on the operators of the affected aircraft. The primary requirement is to ensure that the unfeathering pump supply line is replaced according to the specified documentation and timeframe. Operators must verify that the replacement work is completed by a certified individual and that the aircraft is inspected to confirm compliance with the directive. Operators must also maintain records of the replacement and any relevant inspections to demonstrate compliance with the regulations. Failure to comply with the provisions of this airworthiness directive can lead to serious legal consequences. While the Civil Aviation Regulations 1998 do not explicitly state penalties for non-compliance in this specific section, general regulations under Part 39 outline potential actions. Non-compliance may result in enforcement actions, including fines and potential grounding of the aircraft. Operators found to be in breach of airworthiness directives may face prosecution, leading to criminal charges and associated penalties, including substantial fines and possible imprisonment. Additionally, non-compliance may lead to civil actions, where affected parties can seek damages for any harm or losses resulting from the non-compliance.