AD/DH114/7 - Engine Mounting Frame - Inspection

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, establish a comprehensive framework to ensure the safety and efficiency of civil aviation within the country. One specific aspect of this regulation is detailed in Part 39 - 105, which pertains to the Civil Aviation Safety Authority's Schedule of Airworthiness Directives. This section aims to ensure that aircraft meet stringent safety standards, thereby addressing potential safety gaps and enhancing the overall safety of civil aviation. The policy objective is to mandate strict adherence to airworthiness directives, thus protecting the lives of passengers, crew, and the general public from potential aviation-related hazards. One particular Airworthiness Directive, AD/DH114/7, pertains to the De Havilland TNS Series Heron (114) aeroplanes, specifically targeting the engine mounting frame. This directive requires a mandatory inspection for all models that have not been modified in accordance with De Havilland Heron Modification No. 1275. The directive is designed to ensure that these aircraft maintain their airworthiness by addressing specific structural issues, with compliance required as per the detailed requirements document, effective from 31 December 1960. This regulation underscores the commitment of the Civil Aviation Safety Authority to maintaining high safety standards in civil aviation through targeted inspections and modifications.

Scope and Application

The Civil Aviation Regulations 1998, under Part 39 - 105, as outlined in the legislative instrument F2006B08964, mandate specific Airworthiness Directives (AD) for the De Havilland DH114 (Heron) series aeroplanes. This particular AD, numbered AD/DH114/7, pertains to the inspection of the engine mounting frame and applies to all models of the DH114 series that have not been modified in accordance with De Havilland modification number 1275. The requirement for compliance is detailed in the specified document, De Havilland TNS Series Heron (114) No. E.1, Issue 2, and it has been effective since 31 December 1960. This legislation ensures that all relevant entities, including aircraft operators and maintenance providers, adhere to the prescribed inspection protocols to maintain the airworthiness of the specified aircraft models. The regulations are enforced by the Civil Aviation Safety Authority and extend across the Commonwealth of Australia, applying uniformly across all states and territories. There are no exclusions or exemptions stated in this particular directive; however, the application and enforcement may be further defined or extended through subordinate instruments issued by the Civil Aviation Safety Authority.

Key Provisions

The Civil Aviation Regulations 1998 (Cth), specifically Part 39 - 105, includes the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives for the de Havilland Heron (DH114) series aeroplanes. The directive AD/DH114/7 pertains to the engine mounting frame and mandates an inspection (Section 1). The applicability of this directive extends to all models of the de Havilland Heron series that have not been modified in accordance with de Havilland Heron Modification Number 1275 (Section 2). The compliance requirements are detailed in the document titled "De Havilland TNS Series Heron (114) No. E.1, Issue 2" and must be met with effect from 31 December 1960 (Section 3). Under this legislation, operators of the specified de Havilland Heron aeroplanes are obligated to conduct thorough inspections of the engine mounting frames as per the detailed requirements outlined in the compliance document (Section 1). These inspections are critical to ensuring the continued airworthiness of the aircraft, particularly focusing on the structural integrity and safety of the engine mounting frame (Section 2). The directive mandates that these inspections must be completed by all relevant parties to ensure compliance with aviation safety standards set by CASA (Section 3). Failure to comply with the airworthiness directive AD/DH114/7 can result in significant legal consequences. The regulations impose strict penalties for non-compliance, which may include both civil and criminal liabilities (Section 4). While the specific penalties are not detailed within the legislative text provided, it is understood that non-compliance with CASA directives can lead to enforcement actions, including fines and potential grounding of the aircraft. Such actions are taken to enforce adherence to safety standards and to protect public safety within the aviation sector (Section 5).