AD/ECUREUIL/18 - Upper Fin Attachment Fitting - Inspection

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, provide a comprehensive framework for regulating civil aviation activities within the country. One particular area of focus within these regulations is the maintenance and safety of aircraft, as detailed in Part 39, which includes specific directives for ensuring the airworthiness of various aircraft models. One such directive is AD/ECUREUIL/18, which pertains to the Eurocopter AS 350 (Ecureuil) series helicopters. This directive was introduced to address specific safety concerns regarding the upper fin attachment fitting on these helicopters, necessitating regular inspections to prevent potential failures. The policy objective of this directive is to enhance aviation safety by ensuring that all AS350 helicopters, unless modified as per AMS 350A07.1047 (SB No. 55.03), undergo mandatory inspections within 10 hours of service time after 1 September 1982, and subsequently at intervals not exceeding 10 hours. This directive references Aerospatiale SB No. 05.09 and is also associated with Bureau Veritas AD 82-98-26(B), underscoring its alignment with international safety standards.

Scope and Application

The Civil Aviation Regulations 1998, as part of the legislative framework overseen by the Civil Aviation Safety Authority, applies to all model AS350 Eurocopter (Ecureuil) series helicopters that have not been modified in accordance with AMS 350A07.1047 (Service Bulletin No. 55.03). This regulation specifically pertains to the inspection of the upper fin attachment fitting, as outlined in Airworthiness Directive AD/ECUREUIL/18, which was issued on 10 August 1982. The directive mandates that these inspections must be completed within 10 hours of time in service following 1 September 1982 and at intervals not exceeding 10 hours of time in service thereafter. This regulation ensures the safety and airworthiness of the specified aircraft within the Commonwealth of Australia, and compliance with this directive is essential to maintain operational standards. The regulation does not specify any exclusions or exemptions, but compliance can be verified through Aerospatiale Service Bulletin No. 05.09 and references to Bureau Veritas AD 82-98-26(B). The scope of this directive is national and applies to all relevant aircraft operating within Australian jurisdiction.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998 (Part 39 - 105) for the Eurocopter AS 350 (Ecureuil) Series Helicopters require that all model AS350 helicopters, unless modified in accordance with AMS 350A07.1047 (Service Bulletin No. 55.03), must undergo an inspection of the upper fin attachment fitting. This inspection is mandated within 10 hours of time in service after 1 September 1982 and must be repeated at intervals not exceeding 10 hours of time in service thereafter. The directive is referenced in AD/ECUREUIL/18 and is documented in Aerospatiale Service Bulletin No. 05.09, with an additional reference to Bureau Veritas AD 82-98-26(B). Compliance with these inspection requirements is crucial for the airworthiness of the aircraft. The Civil Aviation Regulations impose specific obligations on the operators and owners of the Eurocopter AS 350 helicopters. They are required to ensure that the upper fin attachment fitting of their helicopters is inspected within the stipulated timeframes. If a helicopter has not been modified as per Service Bulletin No. 55.03, these inspections must be carried out diligently to maintain the aircraft's airworthiness. Compliance with the AD/ECUREUIL/18 directive is essential, and failure to adhere to these inspection requirements can have serious implications for flight safety. The legislation includes provisions for offences and penalties for non-compliance with the airworthiness directives. Operators and owners who fail to adhere to the mandated inspection intervals for the upper fin attachment fitting risk significant consequences. Non-compliance could potentially lead to the grounding of the aircraft, which in turn could result in substantial operational disruptions and financial losses. Additionally, there may be legal repercussions, including fines and other civil or criminal penalties, depending on the severity and frequency of the non-compliance. The exact penalties are not specified in the text, but they could be severe given the importance of adhering to airworthiness directives for aviation safety.