Overview

The Civil Aviation Regulations 1998, as amended by F2006B08732, were enacted to ensure the safety and compliance of civil aviation activities within Australia, particularly in response to identified safety issues in specific aircraft models. This legislative instrument targets the Eurocopter SA 360 and SA 365 (Dauphin) Series helicopters, focusing on addressing the problem of fatigue-related failures in the tail rotor pitch change spider and blade horn foot within the fenestron. The objective of the regulation is to mandate actions to be taken in accordance with specific Aerospatiale service telexes to mitigate these risks, thereby enhancing the airworthiness and safety of these helicopter models. The regulation is overseen by the Civil Aviation Safety Authority (CASA), which is responsible for enforcing compliance and ensuring adherence to the specified safety directives. The enactment of this regulation by CASA aims to provide clear instructions for operators to undertake necessary actions to prevent the aforementioned failures, thereby safeguarding the operational integrity and safety of the Dauphin helicopters. The regulation requires that specific actions be taken prior to further flight, following a set number of flying hours or at the end of the day's flights, and immediately upon any indication of high vibration levels from the tail rotor assembly. This proactive approach seeks to preemptively address potential safety hazards, aligning with the overarching policy objective of maintaining the highest standards of aviation safety in Australia.

Scope and Application

The Civil Aviation Regulations 1998, as amended, apply to all civil aviation operations within Australia, and their scope extends to any person or entity involved in such activities. Specifically, the airworthiness directive (AD/DAUPHIN/21) pertains to the Eurocopter SA 360 and SA 365 (Dauphin) Series Helicopters, mandating compliance with the specified service telex communications to address critical maintenance issues identified by the manufacturer. This applies to all models within the Dauphin series, including SA 360, SA 361, SA 365C, C1, C2, C3, N, and FS helicopters. The directive requires actions to be taken in accordance with Aerospatiale Service Telex No 05-12 and 05-16, as applicable, and references Aerospatiale Telex N 12853 for further details. Compliance with these directives must be achieved prior to further flight, at regular intervals not exceeding 10 flying hours or at each 'after last flight' inspection of the day, whichever occurs first, and immediately following any reports of high vibration levels from the tail rotor assembly. The application of these regulations is overseen by the Civil Aviation Safety Authority and ensures adherence to the safety standards mandated by Australian civil aviation law.

Key Provisions

The main operative sections of this legislative instrument concern the safety requirements for the Eurocopter SA 360 and SA 365 (Dauphin) Series Helicopters, specifically regarding the tail rotor pitch change spider and blade horn foot (sections 1-3). Section 1 mandates that action must be taken in accordance with Aerospatiale Service Telex No 05-12 and 05-16, as applicable. The subsequent sections provide the specific timelines for compliance: the directive must be followed unless it has already been accomplished, before any further flight, and either after 10 flying hours or at the end of the day's last flight inspection, whichever comes first. Furthermore, any reports of high vibration levels from the tail rotor assembly must prompt immediate action. The obligations and requirements imposed by this legislation are primarily focused on ensuring the airworthiness and safety of the Dauphin helicopters. Owners and operators of the affected models must ensure that the prescribed inspections and maintenance actions are carried out in a timely manner, as outlined in the relevant service telex communications. This includes performing the necessary checks prior to each flight, adhering to the specified flight hour or daily inspection intervals, and responding promptly to any indications of mechanical issues such as high vibration levels. Failure to comply with these provisions can result in serious consequences. The regulations do not explicitly detail specific offences, penalties, or civil/criminal consequences in the provided text; however, non-compliance with airworthiness directives generally leads to enforcement actions by the Civil Aviation Safety Authority (CASA). Such actions can include grounding of the aircraft, fines, and other regulatory penalties. Additionally, severe non-compliance could potentially result in criminal charges if it is deemed to have contributed to an aviation accident or incident. While the maximum penalties are not stated in this specific directive, they can vary widely depending on the nature and severity of the breach.