Overview

The Civil Aviation Regulations 1998, which are administered by the Civil Aviation Safety Authority (CASA), include a schedule of airworthiness directives intended to maintain safety standards within the aviation industry. One such directive, AD/R22/6, addresses the issue of seat harness assembly latch modifications for the Robinson R22 series helicopters, specifically for serial numbers 0002 and subsequent. This directive was enacted to address the observed fraying of webbing at the angular latch of the seat harness assemblies, which has led to a failure during an accident. The policy objective is to ensure that the specified modifications are implemented within 25 hours of time in service after 23 June 1981, unless they have already been completed. This directive aims to enhance the safety of helicopter operations by mitigating the risk of harness failure, which could potentially lead to accidents. The legislative instrument F2006B06457 (Civil Aviation Regulations 1998) was enacted by the Parliament of the Commonwealth of Australia to provide regulatory oversight and ensure the safety of civil aviation. This specific airworthiness directive is intended to fill a gap identified in the safety protocols for the Robinson R22 series helicopters, ensuring that all operators comply with mandatory safety modifications to prevent potential failures of the seat harness assembly latch.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandates the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives which includes AD/R22/6 concerning the Robinson R22 Series Helicopters. This directive applies to all model R22 helicopters with serial numbers 0002 and subsequent, imposing a requirement for a seat harness assembly latch modification. The directive mandates compliance within 25 hours of time in service after 23 June 1981, unless the modification has already been accomplished. This regulation is essential to address observed fraying of the webbing at the angular latch and to prevent webbing failure, which has been implicated in accidents. The scope of this directive is geographically and jurisdictionally extensive as it pertains to the Commonwealth of Australia, impacting all relevant aircraft operators and entities within its borders. There are no stated exclusions or exemptions within the text, implying that all applicable aircraft must adhere to the directive without exception. The authority to extend or restrict the application of this directive may be exercised through subordinate instruments issued by CASA.

Key Provisions

The Civil Aviation Regulations 1998, specifically under Part 39 - 105, include an Airworthiness Directive (AD) concerning the Robinson R22 series helicopters (sections 39-105(1) to 39-105(5)). This directive, AD/R22/6, pertains to seat harness assembly latch modifications for model R22 with serial numbers 0002 and above. It references Robinson Mandatory Service Bulletin No. 12.8/81 as the document to be followed for compliance (section 39-105(2)). The directive mandates that the specified modifications must be completed within 25 hours of the helicopter's time in service after 23 June 1981, unless the modifications have already been performed (section 39-105(3)). The AD imposes specific obligations on the operators of the affected helicopters. Operators must ensure that the seat harness assembly latch modifications are carried out as per the instructions in Robinson Mandatory Service Bulletin No. 12.8/81 (section 39-105(4)). This includes verifying that the modifications are completed within the stipulated 25 hours of time in service following the specified date. Failure to comply with these obligations could result in the aircraft being deemed non-airworthy, potentially leading to grounding of the helicopter until the required modifications are completed (section 39-105(4)). Breach of the requirements set out in the AD can lead to serious consequences. Firstly, from a regulatory perspective, any non-compliance may result in the aircraft being deemed non-airworthy, which would prevent the operator from legally flying the helicopter until the modifications are completed and approved by the Civil Aviation Safety Authority (CASA) (section 39-105(5)). Additionally, under civil aviation law, there could be financial penalties imposed on the operator for failing to maintain the airworthiness of the aircraft. In more severe cases, where non-compliance leads to accidents or endangers safety, criminal charges may be pursued against the operator or responsible personnel, leading to potential imprisonment or substantial fines (section 39-105(5)). The specific penalties for these breaches are not detailed in the AD but are generally governed by the broader provisions of the Civil Aviation Act 1988 and related regulations.