AD/INST/2 Amdt 2 - Edison and Garwin Engine Gauge Units - Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, serve to maintain and enhance the safety of civil aviation within the country. One specific regulation within this framework is Part 39, which includes the Airworthiness Directives. Among these, AD/INST/2Amdt 2 pertains to the modification of Edison and Garwin engine gauge units to ensure they meet safety standards. This legislative instrument was introduced to address potential safety risks associated with certain engine gauge units manufactured prior to 1962, by requiring specific modifications to prevent fire hazards. The directive applies to certain models of Thomas A. Edison and Garwin Inc. engine gauge units, necessitating modifications to the diaphragm and capillary tube assembly and the installation of an overboard drain line. Compliance with this directive is mandatory, with a compliance deadline set for 31 November 1966, underscoring the policy objective of mitigating safety risks in civil aviation.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 107, governs the airworthiness directives that are essential for ensuring the safety of civil aviation in Australia. One such directive, AD/INST/2 Amendment 2, applies to certain engine gauge units manufactured by Thomas A. Edison and Garwin Inc. before specific dates. This regulation mandates modifications to these gauge units to ensure their continued safe operation within Australian airspace. The directive requires that the diaphragm and capillary tube assembly of the affected gauge units be replaced with a new assembly, which is marked with a distinct white band. Additionally, an overboard drain line must be installed from the fuel pressure gauge vent connection to prevent fuel from accumulating in a manner that could lead to a fire hazard or the release of fumes into personnel compartments. Compliance with these directives is mandatory and must be achieved before 31 November 1966. This regulation is applicable to any entity or individual possessing or operating aircraft equipped with the specified engine gauge units. The scope is national, as it pertains to all aircraft within the Commonwealth of Australia, irrespective of where they are registered or operated. The regulation does not explicitly exclude any categories of aircraft or operators, meaning it broadly applies to the entire civil aviation sector in Australia. The directive may be further clarified or extended through subordinate instruments, such as additional amendments or notices issued by the Civil Aviation Safety Authority.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 107, under the Civil Aviation Safety Authority Schedule of Airworthiness Directives, addresses modifications to certain engine gauge units. AD/INST/2 Amendment 2 pertains to Edison and Garwin engine gauge units manufactured prior to specific dates, identified by their model numbers and production dates (section 1). The main requirement is to modify these gauge units by replacing the diaphragm and capillary tube assembly P/N 45010 with a new assembly P/N 45010, which must be visibly marked with a white band painted on the capillary tube (section 2). Additionally, an overboard drain line must be installed from the fuel pressure gauge vent connection on each gauge unit, ensuring that the discharged fuel does not pose a fire hazard and that fumes do not enter personnel compartments (section 3). These modifications must be completed before 31 November 1966. The Act imposes several obligations on the parties governed by these regulations. Firstly, aircraft owners or operators must ensure that their Edison and Garwin engine gauge units comply with the specified modifications. This involves sourcing the required new assemblies and correctly installing them, ensuring that the white band marking is accurately applied. Secondly, operators must also install the overboard drain line in a manner that complies with the safety requirements outlined in the regulations, preventing any potential fire hazards or the ingress of fumes into personnel areas. All modifications must be carried out by authorised personnel and documented appropriately to ensure compliance with the regulatory standards. Breach of the provisions outlined in the Civil Aviation Regulations 1998 can lead to significant consequences. While the specific penalties are not detailed within the text provided, non-compliance with airworthiness directives generally falls under the broader aviation safety laws. These could potentially result in civil penalties, including fines, and in more severe cases, criminal charges. The severity of the penalty often depends on the extent of the breach and its potential impact on aviation safety. Enforcement of these regulations is typically overseen by the Civil Aviation Safety Authority, which has the authority to take action against any violations to ensure the continued safety of air travel.