Overview

The Civil Aviation Safety Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), address the need for ongoing safety and airworthiness standards in civil aviation. The Regulations were enacted by the Commonwealth of Australia and aim to ensure that aircraft and aeronautical products meet the necessary safety requirements to protect public safety and property. Part 39 - 105 of these Regulations includes Airworthiness Directives that are issued in response to identified safety issues, ensuring that specific actions are taken to address and mitigate potential hazards. These directives are crucial in maintaining the integrity and safety of civil aviation operations across Australia.

Scope and Application

The Civil Aviation Safety Regulations 1998, specifically PART 39 - 105, pertains to the regulatory framework governing airworthiness directives within the Commonwealth of Australia. This particular legislation applies to the Robinson R44 Series Helicopters, specifically those with serial numbers up to and including 1208, excluding certain serial numbers, and equipped with a tail rotor pitch control assembly of a specified part number and revision. The directive is issued by a delegate of the Civil Aviation Safety Authority to ensure the safety and airworthiness of these helicopters. The regulations mandate inspections and, if necessary, the replacement of the tail rotor pitch control assembly to prevent potential bearing failures that could compromise the helicopter's directional control. Compliance with this directive is required within 20 hours after 26 March 2003 for the initial inspection, with subsequent inspections scheduled at intervals not exceeding 300 hours of flight time or 12 months, whichever comes first. The directive came into effect on 5 March 2003, following its notification in the Commonwealth of Australia Gazette.

Key Provisions

The Airworthiness Directive (AD) issued under subregulation 39.1(1) of the Civil Aviation Safety Regulations 1998 (CAR 1998) mandates specific actions to be taken concerning certain Robinson R44 Series Helicopters, specifically those with serial numbers up to and including 1208, excluding certain serial numbers (1143, 1165, 1183, 1189, 1192, 1196, 1197, 1198, 1200, 1203, and 1204), equipped with a tail rotor pitch control assembly part number C031-1, Revision G or prior (AD/R44/17). The directive requires the inspection of the tail rotor pitch control assembly for any roughness or binding of the pitch control bearings by hand-rotating the pitch control bearing housing, in line with Robinson Helicopter Company Service Bulletin SB-43A Revision A, dated 10 June 2002. If the pitch control bearing housing does not rotate freely, the unserviceable assembly must be replaced with a serviceable one before further flight. This directive aims to prevent bearing failure, which could result in the loss of directional control of the helicopter. Operators of the specified Robinson R44 Series Helicopters are required to adhere to the outlined inspection and, if necessary, replacement procedures to ensure the airworthiness of the tail rotor pitch control assembly. The initial inspection must be conducted within 20 hours of time in service after 26 March 2003, unless it has already been completed. Subsequent inspections must occur at intervals not exceeding 300 hours of time in service or 12 months, whichever comes first. This ongoing requirement ensures that any issues with the tail rotor pitch control assembly are detected and addressed promptly, maintaining the safety and airworthiness of the helicopters. Failure to comply with the provisions of this Airworthiness Directive can result in serious consequences. Non-compliance with airworthiness directives can lead to significant penalties under the Civil Aviation Act 1988 and the Civil Aviation Regulations 1988. Operators may face civil penalties, including fines and potential prosecution, and criminal penalties for serious breaches. Furthermore, non-compliance can lead to the grounding of the affected aircraft, which can have substantial operational and financial repercussions. The severity of the penalties reflects the importance of adhering to airworthiness directives to ensure the safety and reliability of civil aviation operations. In summary, the Airworthiness Directive AD/R44/17 mandates specific inspections and, if necessary, replacements of the tail rotor pitch control assembly on certain Robinson R44 Series Helicopters to prevent bearing failures. Operators must comply with the outlined inspection and replacement procedures to ensure the continued airworthiness of these aircraft. Non-compliance with this directive can result in severe civil and criminal penalties, highlighting the critical importance of adhering to these safety measures.