Airworthiness Directives 2004 - Revocation and Remaking - Propellers - Variable Pitch - Hamilton Standard

Overview

The Airworthiness Directives 2004 were enacted to address issues and ensure the safety and compliance of airworthy aircraft, as mandated by the Civil Aviation Safety Regulations 1998. This legislative instrument was introduced by David Alan Villiers, a delegate of the Civil Aviation Safety Authority, under the authority of the Civil Aviation Safety Regulations 1998. The primary objective of these directives is to ensure that aircraft meet the required safety standards and to mitigate any identified risks through modifications, inspections, or other specified actions. The Civil Aviation Safety Authority, as the enacting body, aims to uphold stringent safety protocols within the aviation industry by issuing these directives. Each directive is remade to reflect the latest published edition, ensuring that all safety requirements are up-to-date and accurately addressed.

Scope and Application

The Airworthiness Directives 2004, issued by David Alan Villiers as a delegate of the Civil Aviation Safety Authority, concerns the revocation and remaking of specific Airworthiness Directives pertinent to aircraft propellers. These directives apply to particular models of propellers, such as the Hamilton Standard Model 23260 and 43E-60, among others. The scope of these directives includes modifications, inspections, and amendments aimed at ensuring the safety and airworthiness of the specified propellers. This legislative instrument has a national reach within Australia, applying across the Commonwealth and potentially affecting various entities, including aircraft manufacturers, operators, and maintenance providers involved in the maintenance and operation of the specified propeller models. The directives are intended to mandate specific actions or alterations to ensure compliance with airworthiness standards, and while the legislation itself does not explicitly state exclusions, exemptions, or thresholds, these may be defined in the subordinate instruments or related regulations.

Key Provisions

The Airworthiness Directives 2004 (F2006B07990) primarily focus on the revocation and remaking of various airworthiness directives related to aircraft propellers, specifically those manufactured by Hamilton Standard. This legislative instrument revokes several existing airworthiness directives and re-issues them as separate instruments. The directives in question pertain to modifications, inspections, and other safety measures for various models of propellers (sections (a) and (b)). These include detailed instructions for models such as 23260, 43E-60, 43D-50, 23E-50, 54H60, and others, which cover aspects such as low pitch stop assembly, reverse solenoid valve, blade face alignment, barrel bolt boss, blade seal, counterweight bearing shaft, pitch lock regulator assembly, blade retaining rings, and propeller blade shanks. The Act imposes several obligations and requirements on the parties it governs. These include the necessity for aircraft operators and maintenance personnel to comply with the specified modifications and inspections outlined in the re-made directives. For instance, operators must ensure that modifications to the low pitch stop assembly and inspections of the reverse solenoid valve are carried out as per the directives AD/PHS/1 and AD/PHS/2 Amdt 1 respectively. Additionally, specific inspections and modifications related to blade face alignment, barrel bolt bosses, and blade retaining rings must be completed in adherence with directives such as AD/PHS/3, AD/PHS/5, and AD/PHS/11 Amdt 1. Non-compliance with these directives could result in severe safety risks, potentially leading to aircraft malfunction or accidents. Failure to adhere to the provisions set forth in these airworthiness directives can lead to significant legal consequences. While the specific penalties are not detailed in the text, violations of airworthiness directives can generally result in both civil and criminal penalties. Civil penalties may include fines, while criminal penalties can involve imprisonment, depending on the severity of the breach. The maximum penalties can vary based on the specific nature of the violation and the jurisdiction under which the case is tried. It is essential for aircraft operators and maintenance personnel to meticulously follow these directives to avoid any legal repercussions and to ensure the continued airworthiness of their aircraft.