COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Propellers - Variable Pitch - De Havilland
AD/PDH/5
Amdt 3
Bracket Type Propellers - Inspection 3/68
Applicability: All model PD136/212/1, PD170/212/1 and PD175/212/1 propellers fitted to DeHavilland DH114 aircraft.
Document: Hawker Siddeley Heron TNS No. 26, Rev. 8. Compliance: As detailed in the requirement document.
Overview
The Civil Aviation Regulations 1998, amended by the Civil Aviation Amendment (Safety) Regulations 2006 (F2006B06164), introduce specific Airworthiness Directives to address safety concerns related to the maintenance and operation of aircraft. These regulations were enacted by the Parliament of Australia and aim to ensure that aircraft meet safety standards through regular inspections and maintenance protocols. The particular amendment focuses on the inspection of variable pitch propellers, specifically those of the Bracket Type fitted to De Havilland DH114 aircraft, identified as model PD136/212/1, PD170/212/1, and PD175/212/1. The policy objective is to mitigate the risk of in-flight failure or malfunction by mandating regular inspections and compliance with specified documentation to ensure the ongoing airworthiness of these propellers.
Scope and Application
The Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, specifically AD/PDH/5 Amendment 3, pertains to the inspection of variable pitch propellers of the bracket type fitted to De Havilland DH114 aircraft. This legislative instrument applies to specific models of propellers, namely PD136/212/1, PD170/212/1, and PD175/212/1, which are used on De Havilland DH114 aircraft. The directive mandates compliance with the detailed requirements outlined in the Hawker Siddeley Heron Technical Notice Service (TNS) No. 26, Revision 8. This regulation is applicable nationally, ensuring that all aircraft operators and maintenance personnel within Australia adhere to the specified inspection protocols to maintain airworthiness standards. There are no stated exclusions or exemptions within the directive, and its application is mandatory for the specified propeller models, ensuring safety and compliance across the industry. The scope and application of the directive are further extended through subordinate instruments and technical notices, which provide additional detail and guidance on implementation.
Key Provisions
The Civil Aviation Regulations 1998, specifically in Part 39 - 107, includes a schedule of airworthiness directives concerning propellers. Among these, AD/PDH/5 Amendment 3 pertains to the inspection of Bracket Type Propellers on De Havilland aircraft. Section 3/68 details the applicability of this directive, which includes all model PD136/212/1, PD170/212/1, and PD175/212/1 propellers installed on De Havilland DH114 aircraft. The compliance requirements are outlined in Hawker Siddeley Heron Technical Notice Serial No. 26, Revision 8.
This directive imposes several obligations on the parties involved. Operators of De Havilland DH114 aircraft must ensure that the specified propellers are inspected according to the prescribed schedule and procedures detailed in the compliance document. This includes conducting regular checks and maintenance to identify any issues that may affect the airworthiness of the aircraft. Additionally, operators are responsible for maintaining records of these inspections to demonstrate compliance with the regulations.
Failure to comply with the airworthiness directive can result in serious consequences. Under the Civil Aviation Regulations 1998, non-compliance may lead to enforcement actions, including fines, sanctions, or other penalties imposed by the Civil Aviation Safety Authority (CASA). The specific penalties can vary depending on the severity of the breach and whether it is a first-time or repeat offence. Operators found in breach of these regulations may also face operational restrictions or the grounding of affected aircraft until compliance is achieved.