Airworthiness Directives 2004 - Revocation and Remaking - Propellers - Variable Pitch - De Havilland

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 Airworthiness Directives 2004

 I, DAVID ALAN VILLIERS, delegate of the Civil Aviation Safety

 Authority, acting under subregulation 39.001 (1) of the Civil

 Aviation Safety Regulations 1998:

 (a) revoke the Airworthiness Directives mentioned in

 Schedule 1; and

 (b) make, as separate instruments, each Airworthiness

 Directive mentioned in Schedule 1 and attached.

 

 

 David Villiers

 Delegate of the Civil Aviation Safety Authority

 

  20 December 2004

 Note:   Each attached Airworthiness Directive is being re-made in exactly the

 same form as appears in the latest published edition of the Directive.

 


 Schedule 1 Revocation and Remaking of

 Airworthiness Directives

 Propellers - Variable Pitch - De Havilland

 AD Name AD Number

 Model 3/1000/2 - Hub Modification AD/PDH/1

 Model 3/1000/2 - Propeller Retaining Nut - Inspection AD/PDH/2

 Model 3/1000/2 - Hub Inspection AD/PDH/3

 Model 4/4000/6 Blade - Modification AD/PDH/4

 Bracket Type Propellers - Inspection AD/PDH/5 Amdt 3

 Bracket Type Propellers - Modification AD/PDH/6

 Barrel Support Blocks - Modification AD/PDH/7

 Oil Transfer Tube Locking - Modification AD/PDH/8

 

Overview

The Airworthiness Directives 2004, enacted by David Alan Villiers as the delegate of the Civil Aviation Safety Authority, serves to address the need for updated and consistent regulatory compliance in aircraft airworthiness standards. This legislative instrument revokes several previously issued airworthiness directives pertaining to propellers, particularly those of De Havilland models, and re-issues them to ensure alignment with the latest safety standards and practices. The directives were re-made to maintain a standardised and up-to-date set of regulations, reflecting the most current safety requirements and technological advancements in the aviation industry. The Civil Aviation Safety Authority, through this instrument, aims to uphold and enhance the safety and reliability of air travel by ensuring that all relevant airworthiness directives are current and enforceable.

Scope and Application

The Airworthiness Directives 2004, as enacted by David Alan Villiers, the delegate of the Civil Aviation Safety Authority (CASA), under subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998, pertains to specific airworthiness directives relating to aircraft propellers and their associated components. These directives apply to the aviation industry, specifically to aircraft operators, manufacturers, and maintenance personnel who are responsible for ensuring the airworthiness of propellers and related parts on De Havilland aircraft models. The geographic scope of this legislation is national, as it is issued under the authority of the Commonwealth of Australia through CASA. This legislation revokes previously issued airworthiness directives and re-makes them as separate instruments to ensure clarity and compliance with current standards and regulations. Each airworthiness directive is re-made in the same form as it appears in the latest published edition of the directives. These directives are designed to address safety concerns and maintenance requirements for various propeller models and components, thereby ensuring that the aircraft meet the necessary safety standards.

Key Provisions

The Airworthiness Directives 2004, as made by the delegate of the Civil Aviation Safety Authority (CASA), David Alan Villiers, primarily involve the revocation of certain Airworthiness Directives (ADs) and their subsequent remaking (sections 1(a) and 1(b)). The specific ADs mentioned in Schedule 1 are revoked and then re-made as separate instruments, each appearing in exactly the same form as the latest published edition. This procedural approach ensures that the directives are up to date and compliant with the current regulatory standards. The ADs listed include modifications and inspections related to propellers and hub components of specific aircraft models, such as the De Havilland models 3/1000/2 and 4/4000/6. The obligations imposed by the Airworthiness Directives 2004 require compliance from aircraft owners, operators, and maintenance providers. These obligations are detailed in the re-made ADs and include conducting specified modifications and inspections on propellers, hubs, and related components. For example, AD/PDH/1 mandates a hub modification for the De Havilland Model 3/1000/2, while AD/PDH/2 requires an inspection of the propeller retaining nut. These directives are designed to ensure that aircraft remain airworthy by addressing specific safety concerns identified through regulatory review. Failure to comply with the provisions of these Airworthiness Directives can result in significant consequences. Under the Civil Aviation Safety Regulations 1998, non-compliance may lead to civil penalties. The specific penalties are not detailed in the Airworthiness Directives 2004 but are stipulated in the Civil Aviation Safety Regulations 1998. The regulations provide for penalties that can include fines and other enforcement actions. In more severe cases, continued non-compliance could lead to criminal charges, particularly if it results in unsafe aircraft operations, potentially leading to prosecution and imprisonment for the responsible parties.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.