AD/CESSNA 188/40 Amdt 1 - Fuel Filler Caps and Adaptors

Overview

The Civil Aviation Regulations 1998, specifically within Part 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, were enacted by the Commonwealth of Australia to ensure the safety and regulation of civil aviation within Australia. This legislation was introduced to address gaps in airworthiness standards and to provide clear directives for the maintenance and safety of aircraft operating in Australian airspace. The Civil Aviation Safety Authority (CASA) is the body responsible for enacting these regulations, aiming to maintain high safety standards in civil aviation. The policy objective behind these regulations is to ensure that all aircraft are maintained in a safe and airworthy condition, thereby protecting the safety of passengers, crew, and the general public. The specific legislative instrument F2006B05175, which amends the airworthiness directives for Cessna 188 (Agwagon) series aeroplanes, focuses on the inspection and maintenance of fuel filler caps and adaptors. This amendment, issued in 1988, eases the inspection burden on aircraft equipped with raised fuel filler necks by reducing the requirement for extensive testing against possible water ingress. It mandates that certain Cessna models must have their fuel filler caps inspected for signs of leakage, distortion, and proper sealing, with compliance required prior to the next maintenance release after 30 June 1985, and subsequently at each new maintenance release. This amendment aims to streamline maintenance procedures while maintaining the high safety standards set by the Civil Aviation Safety Authority.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the regulation of airworthiness directives, including those issued by the Civil Aviation Safety Authority (CASA) for specific aircraft models. This legislative instrument focuses on Cessna 188 (Agwagon) series aeroplanes, detailing the applicability and requirements for fuel filler caps and adaptors. It applies to aircraft with particular serial numbers manufactured within certain timeframes, ensuring the installation of reduced diameter, raised filler neck fuel caps or compliance with Cessna Service Kit SK182-85. The geographic and jurisdictional reach of these regulations extends to all aircraft registered within Australia, governed by the Commonwealth. The regulations do not specify exclusions or exemptions, but rather provide a structured compliance pathway that includes visual inspections, mechanical checks, and seal integrity tests, all of which must be completed prior to the issuance of new maintenance releases. The requirements are designed to enhance safety by ensuring that fuel systems are not compromised by leakage or poor sealing, thus maintaining the airworthiness of the affected aircraft.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, detail the Civil Aviation Safety Authority's (CASA) requirements for ensuring the airworthiness of certain aircraft. One such directive, AD/CESSNA 188/40 Amendment 1, pertains to the Cessna 188 (Agwagon) Series aeroplanes, particularly focusing on fuel filler caps and adaptors. This amendment applies to models with specified serial numbers and mandates certain inspections and actions to ensure the integrity and safety of the aircraft's fuel systems (Section 1). The directive outlines a series of specific inspection and testing procedures. Owners and operators of affected Cessna 188 aeroplanes must visually inspect the wing aft of the fuel filler for any signs of in-flight fuel leakage (Section 2). They must also inspect the fuel cap locking mechanism and seals for any signs of cracking, distortion, or other conditions that could compromise their sealing ability (Section 3). Additionally, the fuel filler caps must be removed and inspected to ensure that the adaptor sealing face is free from distortion, scratches, corrosion, or any other condition that could prevent a proper seal (Section 4). The adaptor flange's attachment to the adaptor plate must be visually checked, with particular attention paid to the adhesive, if present, between these parts (Section 5). The seal's effectiveness must be tested by actuating the locking tab and verifying that force is maintained between the cap, seal, and adaptor when the tab is in the over-centre locking position (Section 6). Finally, a fuel cap leak test must be conducted in accordance with Cessna SIL SE 82-34 (Section 7). Compliance with these requirements is mandatory. The inspections and tests must be completed prior to the issue of the next Maintenance Release after 30 June 1985 and must be repeated at each subsequent issue of a new Maintenance Release (Section 8). Failure to adhere to these provisions could result in the aircraft being deemed unairworthy, potentially leading to grounding and other regulatory actions by CASA. In terms of penalties, the Civil Aviation Regulations 1998 provide for significant consequences for non-compliance with airworthiness directives. The specific penalties for breaching this directive are not detailed in the text, but under general provisions, violations can lead to substantial fines and potential criminal charges, especially if the non-compliance results in an aviation accident or incident. The severity of penalties can vary based on the nature and extent of the violation, but they may include hefty fines and imprisonment for individuals responsible for ensuring compliance.