Overview

The Civil Aviation Safety Regulations 1998 were enacted to establish and enforce standards for civil aviation safety across Australia, addressing the need for a unified and comprehensive regulatory framework to ensure the safety of civil aviation operations. The Civil Aviation Safety Authority (CASA) has the authority to issue Airworthiness Directives (ADs) under these regulations, aimed at mitigating safety risks by mandating specific actions to rectify unsafe conditions. One such AD, AD/A109/41, was issued on 16 April 2003, focusing on the Agusta A109 Series Helicopters, specifically targeting the main rotor rotating scissor assembly to address reported fatigue failures of the swashplate outer ring attachment bolt. The AD, which became effective on 12 June 2003, required compliance by 30 June 2003 and mandated actions in line with Agusta's Mandatory Service Bulletin No. 109EP-12 dated 24 July 2000. This directive was issued to ensure the safety and airworthiness of the affected aircraft, aligning with CASA's overarching objective of maintaining high safety standards in civil aviation.

Scope and Application

This Airworthiness Directive (AD) applies specifically to all Model A109E helicopters within the Commonwealth of Australia, as mandated by the Civil Aviation Safety Regulations 1998. The directive is issued by a delegate of the Civil Aviation Safety Authority (CASA) to address a safety concern identified with the main rotor rotating scissor assembly of the Agusta A109 Series helicopters. The directive requires corrective action in line with Agusta's Mandatory Service Bulletin No. 109EP-12 dated 24 July 2000, which relates to the prevention of fatigue failure of the swashplate outer ring attachment bolt, a problem stemming from incorrect installation of the lower link of the main rotor rotating scissor assembly. This directive must be complied with before 30 June 2003 unless the required action has already been completed. The AD is effective from 12 June 2003 and is published in the Commonwealth of Australia Gazette on 21 May 2003, ensuring that all relevant parties within the specified timeframe are aware of and comply with the safety requirements.

Key Provisions

The Airworthiness Directive (AD) AD/A109/41 (section 1) pertains to all Model A109E helicopters and requires compliance with Agusta Mandatory Service Bulletin No. 109EP-12, dated 24 July 2000 (section 2). This AD was issued to address the issue of fatigue failure of the swashplate outer ring attachment bolt, which was traced to the incorrect installation of the lower link of the main rotor rotating scissor assembly (section 3). The directive became effective on 12 June 2003, and compliance was mandatory before 30 June 2003, unless the specified action had already been completed (section 4). The AD references European Aviation Safety Agency AD2000-371 (section 5). The AD imposes several obligations on the parties it governs. Primarily, it mandates that the lower link of the main rotor rotating scissor assembly be installed correctly on all Model A109E helicopters (section 6). This requirement is intended to prevent fatigue failure of the swashplate outer ring attachment bolt, thereby ensuring the continued airworthiness of the affected helicopters (section 7). Operators and owners of these helicopters must adhere to the instructions provided in the Agusta Mandatory Service Bulletin No. 109EP-12 (section 8). Failure to comply with the AD by the specified compliance date could result in the helicopter being deemed unairworthy (section 9). Failure to comply with the AD AD/A109/41 could lead to serious consequences, both civil and criminal, as the AD is designed to address a safety-critical issue (section 10). Under section 39.1(1) of the Civil Aviation Safety Regulations 1998, non-compliance may be subject to enforcement actions by the Civil Aviation Safety Authority (CASA) (section 11). While specific civil or criminal penalties are not detailed in the AD itself, non-compliance with CASA directives can lead to enforcement actions including fines, operational restrictions, and potential criminal charges in cases of gross negligence or willful disregard of safety regulations (section 12). The exact penalties would depend on the severity of the non-compliance and any resultant harm caused (section 13).