AD/R22/17 - Clutch Lock Switch - Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, were introduced to address the need for a comprehensive regulatory framework governing all aspects of civil aviation in Australia. This legislation, administered by the Civil Aviation Safety Authority (CASA), aims to ensure the highest possible level of safety in the aviation industry, thereby protecting the public and enhancing the efficiency of air travel. In this context, the regulations encompass a wide range of areas including aircraft operations, airworthiness, and personnel licensing, among others. The policy objective of these regulations is to provide a unified and effective legislative framework that facilitates the safe, secure, and orderly development of civil aviation in Australia. One specific example of these regulations in action is the Airworthiness Directive (AD) for Robinson R22 Series Helicopters, particularly AD/R22/17, which pertains to the clutch lock switch modification. This directive applies to all model R22 Series helicopters with serial numbers ranging from 0002 to 0225. The requirement, as outlined in Robinson S.B. 29, mandates compliance within 25 hours of time in service after 15 April 1983. The directive addresses the critical issue of ensuring that the clutch actuator remains active during flight, which helps maintain proper belt tension and provides a vital warning of potential failures in the Vee-belts, actuator bearings, or other drive system components. This modification is essential to prevent catastrophic failures and ensure the continued airworthiness and safety of the aircraft.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 under the Civil Aviation Safety Authority's schedule of Airworthiness Directives, applies to all Robinson R22 Series helicopters with serial numbers ranging from 0002 to 0225. This regulation mandates the modification of the clutch lock switch to comply with Robinson S.B. 29, ensuring the safety and operational integrity of the aircraft. Pilots and operators of these specific model helicopters must adhere to the requirement outlined in the Airworthiness Directive AD/R22/17, which mandates that the compliance with the clutch lock switch modification be completed within 25 hours of time in service following the directive's issue date of 15th April 1983. Operators are advised to refer to Robinson Safety Notice No. 14 in conjunction with the compliance document to ensure proper adherence and understanding of the modifications. This regulation extends its applicability to ensure the safety and reliability of the specified Robinson R22 Series helicopters within the Australian aviation sector.

Key Provisions

The primary sections of the Civil Aviation Regulations 1998, specifically Part 39 - 105 and the Airworthiness Directives (AD) concerning the Robinson R22 Series helicopters, outline the requirements and procedures for modifying the clutch lock switch (AD/R22/17). Section 39.105 mandates that all Robinson R22 Series helicopters with serial numbers between 0002 and 0225 must comply with these directives. The requirement, as stipulated in Robinson S.B. 29, involves a specific modification to the clutch lock switch to enhance flight safety. This directive must be adhered to within 25 hours of time in service following 15 April 1983. These regulations impose specific obligations on the owners and operators of the affected helicopters. They must ensure that the modification to the clutch lock switch is performed by authorised personnel and in accordance with the guidelines provided. Operators are also required to maintain records of compliance, demonstrating that the modification has been completed within the specified timeframe. Furthermore, the directive suggests that Robinson Safety Notice No. 14 should be reviewed alongside the compliance document to ensure all safety measures are fully understood and implemented. Failure to comply with the requirements of the Civil Aviation Regulations 1998 and the specific Airworthiness Directives can result in serious consequences. The legislation does not explicitly state penalties for non-compliance in this context; however, it is understood that failure to meet these requirements could lead to the aircraft being deemed unairworthy. This could result in grounding of the helicopter until the necessary modifications are made, potentially leading to significant operational disruptions and financial losses for the operator. Additionally, non-compliance may result in enforcement actions by the Civil Aviation Safety Authority, which could include fines or other regulatory sanctions.