Overview

The Civil Aviation Regulations 1998 (CAR 1998) were enacted to provide a comprehensive framework for the regulation of civil aviation in Australia, ensuring the safety, efficiency and orderly development of civil aviation. The regulations, administered by the Civil Aviation Safety Authority (CASA), aim to protect the public and promote safe practices within the aviation industry. One of the specific measures introduced under these regulations is the Airworthiness Directive (AD) for the Bell UH-1 Series Helicopters, issued on 3 July 2002. This AD was introduced to address an unsafe condition identified in certain tail rotor grips of the Bell UH-1 Series Helicopters, which could potentially lead to safety risks. The policy objective behind this AD is to mandate the cleaning or replacement of the tail rotor grips to ensure the continued airworthiness of the affected helicopters.

Scope and Application

The Airworthiness Directive (AD) outlined in the Civil Aviation Regulations 1998 applies specifically to Bell UH-1 Series Helicopters, including models HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P, as well as the Southwest Florida Aviation SW204, SW204HP, SW205, and SW205A-1 helicopters manufactured by Bell Helicopters Textron Inc. for the Armed Forces of the United States. The directive pertains to tail rotor grips with part number 205-011-711-101 that are installed on these aircraft. The requirement outlined in the AD mandates that the tail rotor grips be cleaned, and if they are not made of steel, they must be replaced with serviceable steel tail rotor grips. This requirement must be fulfilled before any further flight after 3 July 2002, as stipulated in the compliance section of the directive. The AD became effective on the same date, 3 July 2002. The directive was issued by a delegate of the Civil Aviation Safety Authority and was notified in the Commonwealth of Australia Gazette on the same day.

Key Provisions

The Airworthiness Directive (AD) issued under subregulation 39.1 (1) of the Civil Aviation Regulations 1998 (CAR 1998) mandates specific actions to be taken for the Bell UH-1 Series helicopters to address an unsafe condition identified in the tail rotor grips. Specifically, the AD applies to certain models of Bell UH-1 Series helicopters and Southwest Florida Aviation helicopters manufactured by Bell Helicopters Textron Inc. for the United States Armed Forces. The directive requires the cleaning of the affected tail rotor grip and a subsequent determination of its material composition. If the main body of the tail rotor grip is not made of steel, it must be replaced with a serviceable steel tail rotor grip. This requirement is outlined in the directive under the "Requirement" section, which provides specific instructions on how to perform these tasks. The AD imposes certain obligations on the operators and owners of the affected aircraft. These obligations include ensuring that the required actions are performed before further flight after the effective date of the directive, which is 3 July 2002. This involves inspecting the tail rotor grips, determining their material composition, and replacing them if necessary. Operators and owners must adhere to the instructions provided in the directive and ensure compliance before resuming flight operations. Failure to comply with the AD may result in legal consequences. The AD specifies that the actions outlined must be completed before further flight after the effective date. Non-compliance with these requirements could lead to the grounding of the aircraft until the necessary actions are taken. This directive is enforced to mitigate safety risks associated with the identified unsafe condition of the tail rotor grips.