AD/DHC-3/29 - Engine Mounting Frame

Overview

The Civil Aviation Regulations 1998, amended by the instrument F2006B09078, were enacted to ensure the safety and airworthiness of aircraft operating within Australia. This legislative instrument, introduced by the Commonwealth of Australia, aims to address specific safety concerns regarding the DHC-3 (Otter) series aeroplanes. The primary focus of this regulation is to mandate actions concerning the engine mounting frame as outlined in De H Canada Service Bulletin No 3/31, to be implemented at the time of engine overhaul. The policy objective is to maintain and enhance the safety standards of civil aviation by ensuring that all applicable aircraft meet stringent airworthiness criteria. The enactment of this regulation by the Civil Aviation Safety Authority, as part of the broader Civil Aviation Regulations 1998, was driven by a need to close safety gaps identified in the operation of DHC-3 (Otter) series aeroplanes. By specifying the necessary compliance actions during engine overhaul, the regulation seeks to prevent potential mechanical failures and thereby protect the safety of all persons on board and on the ground. This approach aligns with the overarching goal of the Civil Aviation Regulations 1998 to safeguard the aviation industry and the public from aviation-related hazards.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 – 105 concerning the Civil Aviation Safety Authority Schedule of Airworthiness Directives, applies to all models of DHC-3 (Otter) Series Aeroplanes. This legislation mandates compliance with De H Canada Service Bulletin No 3/31 regarding the engine mounting frame, requiring specific action to be taken during engine overhauls. The regulation operates within the Commonwealth jurisdiction, thus extending its reach across all states and territories in Australia, ensuring a uniform standard of airworthiness for these aircraft. This directive does not specify exclusions or exemptions, implying that all DHC-3 Otter series aeroplanes operating within Australian airspace must adhere to the stipulated requirements. Subordinate instruments may further detail the compliance process, but the primary legislation sets the foundational requirements for maintaining airworthiness standards.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, addresses the requirements for airworthiness directives concerning the DHC-3 (Otter) series aeroplanes. This includes an airworthiness directive, identified as AD/DHC-3/29, which focuses on the engine mounting frame (section 1/78). The directive applies to all models of the DHC-3 series aeroplanes and mandates that any action taken must be in accordance with De H Canada Service Bulletin No 3/31 (section 1/78). Compliance with this directive is required at the time of engine overhaul. The Act imposes certain obligations on the parties or entities it governs, particularly those who own or operate DHC-3 series aeroplanes. These obligations include ensuring that all required actions as outlined in the airworthiness directive are completed at the appropriate times, specifically during engine overhaul. The directive aims to ensure that the engine mounting frame is in compliance with safety standards to prevent any potential hazards or failures that could compromise the safety of the aircraft during operation. Failure to comply with the requirements set out in the airworthiness directive can result in various consequences. The Civil Aviation Regulations 1998 outline potential offences, penalties, and consequences for breaches of these provisions. The severity of the consequences can vary depending on the nature and extent of the breach. For example, if an operator fails to comply with the directive during engine overhaul, they could face significant civil or criminal penalties. While specific maximum penalties are not stated in the provided excerpt, non-compliance could potentially lead to enforcement actions, fines, or other regulatory sanctions under the broader Civil Aviation Act 1988 and associated regulations. It is crucial for operators to adhere strictly to the requirements to avoid any legal repercussions.