AD/AS 355/5 - Upper Fin Attachment Fitting - Inspection

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Government, specifically address the need for safety regulations in the aviation sector. Part 39 - 105 of these regulations, dealing with the Civil Aviation Safety Authority Schedule of Airworthiness Directives, is designed to ensure the ongoing airworthiness of aircraft, particularly by mandating periodic inspections and modifications. The policy objective is to maintain high safety standards in civil aviation through regular oversight and adherence to specific maintenance schedules. This particular legislative instrument, F2006B02504, targets the Eurocopter AS 355 (Twin Ecureuil) Series Helicopters, requiring an inspection of the upper fin attachment fitting in accordance with Aerospatiale Service Bulletin No. 05.03, with compliance necessary within a specific timeframe post-inspection to address identified safety concerns. This regulation was introduced to ensure that all AS 355 helicopters, unless modified according to AMS 350A07.1047 (Service Bulletin No. 55.02), must undergo inspections at specified intervals to mitigate risks associated with the upper fin attachment fitting. The enforcement of these inspections is critical in maintaining the structural integrity and safety performance of these aircraft, reflecting the broader commitment of the Civil Aviation Safety Authority to uphold stringent safety standards in the aviation industry.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the Civil Aviation Safety Authority’s schedule of airworthiness directives for the Eurocopter AS 355 (Twin Ecureuil) series helicopters. This regulation applies to all AS 355 models that have not undergone the modifications specified in AMS 350A07.1047 (SB No. 55.02). The directive mandates that these helicopters must undergo inspection of the upper fin attachment fitting in accordance with Aerospatiale Service Bulletin No. 05.03. The inspection is required within 10 hours of time in service after 1 September 1982 and then at intervals not exceeding 10 hours of time in service thereafter. The directive also references Bureau Veritas AD 82-99-6(B) for further guidance. Compliance with these requirements is necessary to maintain the airworthiness of the affected helicopters. The scope of this regulation is national, extending to all operations within Australia governed by the Civil Aviation Regulations 1998.

Key Provisions

The Civil Aviation Regulations 1998, specifically in Part 39 - 105 under the Civil Aviation Safety Authority Schedule of Airworthiness Directives, address the safety of Eurocopter AS 355 (Twin Ecureuil) Series Helicopters. Section AD/AS 355/5 pertains to the upper fin attachment fitting inspection, detailed in 10/82. This directive applies to all model AS 355 helicopters that have not been modified in accordance with AMS 350A07.1047 (SB No. 55.02). The requirement is that the action must comply with Aerospatiale Service Bulletin No. 05.03. The directive references Bureau Veritas AD 82-99-6(B) for additional guidance. Compliance must be achieved within 10 hours of time in service following 1 September 1982 and subsequently at intervals not exceeding 10 hours of time in service. A modification in line with SB 55.02 effectively terminates the need for the mandatory repeat inspection. The Civil Aviation Regulations impose specific obligations on the operators and owners of Eurocopter AS 355 helicopters. Operators must ensure that the upper fin attachment fittings of their aircraft are inspected as per the requirements set out in the regulations. This includes adhering to the prescribed timeframes and intervals for inspection, which are critical for maintaining the airworthiness of the aircraft. The operators must also maintain records of these inspections to demonstrate compliance with the regulatory requirements. Any modifications to the aircraft that align with SB 55.02 must be documented and verified to ensure the mandated inspections are no longer necessary. Failure to comply with the inspection requirements outlined in the Civil Aviation Regulations can lead to significant consequences. The regulations impose penalties for non-compliance, which may include both civil and criminal sanctions. The specific penalties can vary depending on the severity of the breach and the regulatory framework in place at the time of the violation. For example, operators who fail to conduct the required inspections may face fines, operational restrictions, or even the grounding of the affected aircraft until compliance is achieved. In severe cases, non-compliance can result in criminal charges, leading to substantial fines or imprisonment for responsible individuals or entities. The regulatory framework established by the Civil Aviation Regulations is designed to maintain the highest standards of safety in the aviation industry. By mandating regular inspections of critical components such as the upper fin attachment fittings, the regulations aim to prevent potential safety hazards that could compromise the integrity of the aircraft. Operators and owners must take these requirements seriously, as the consequences of non-compliance can be severe, affecting not only the operational status of their aircraft but also potentially impacting public safety. Compliance with these regulations is essential to ensuring the continued safety and reliability of civil aviation operations in Australia.