Overview

The Civil Aviation Regulations 1998 (Cth) were enacted to ensure that civil aviation operations within Australia meet high safety standards, with Part 39 - 105 focusing on the Civil Aviation Safety Authority's Schedule of Airworthiness Directives. These regulations were introduced to address safety gaps in aircraft operations and were enacted by the Australian Parliament. This particular legislative instrument, F2006B09021, aims to enhance the safety of De Havilland DHC-1 (Chipmunk) Series Aeroplanes by mandating modifications to their fuel systems. The policy objective is to ensure that fuel system configurations prevent operational errors and enhance flight safety by allowing individual selection of fuel tanks from either cockpit and by ensuring proper venting and control mechanisms. Compliance with these directives is critical for maintaining airworthiness and preventing potential hazards during flight operations.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39, Subpart 105, pertaining to the Airworthiness Directives for De Havilland DHC-1 (Chipmunk) Series Aeroplanes, applies to all models of this aircraft type. The regulation mandates modifications to the fuel system, ensuring that it is possible to select either fuel tank individually in flight from either cockpit. This applies to the entire fleet of Chipmunk aircraft, irrespective of ownership or operating entity. The regulation's scope is confined to the Commonwealth of Australia, operating under the authority of the Civil Aviation Safety Authority (CASA). There are no explicit exclusions or exemptions mentioned in the directive; however, compliance must be achieved at the next major inspection or before a specified date, whichever is sooner. The application of this directive is enforced through subordinate instruments, which may include further clarifications, amendments, or updates to ensure the safety and airworthiness of the aircraft.

Key Provisions

The Civil Aviation Regulations 1998, Part 39 - 105, specifically address the airworthiness of De Havilland DHC-1 (Chipmunk) Series Aeroplanes, as detailed in the Airworthiness Directive AD/DHC-1/5 Amendment 2. This amendment focuses on modifications to the fuel system to ensure safer flight operations. The directive requires that the fuel system be modified to allow for individual selection of either fuel tank from either cockpit during flight. The acceptable methods of compliance include reworking the fuel lines and installing a three-way selector cock or a four-way selector cock, or installing an additional ON-OFF fuel cock for each tank. Alternatively, a common venting system for the fuel tanks can be installed, and spring-loaded check valves can be replaced with non-spring-loaded ones. Operators and owners of De Havilland DHC-1 Series Aeroplanes must ensure that these modifications are made by the next major inspection or before 1 December 1972, whichever comes first. This requirement is non-negotiable and must be strictly adhered to for the continued airworthiness of the aircraft. Failure to comply with these directives could result in the aircraft being deemed unairworthy, leading to potential grounding of the aircraft until the modifications are completed. The Civil Aviation Regulations impose strict obligations on the operators and owners of these aircraft to comply with the airworthiness directives. This includes conducting the required modifications to the fuel system as specified, maintaining accurate records of any modifications carried out, and ensuring that the aircraft is regularly inspected to confirm compliance with the regulations. The safety of the aircraft and its occupants is paramount, and these obligations are designed to ensure that the aircraft remains in a safe and airworthy condition at all times. Failure to comply with the requirements set forth in the Airworthiness Directive can result in severe consequences. Operators and owners who do not adhere to the specified modifications may face significant penalties. Civil penalties can include fines and other administrative sanctions, while criminal penalties can result in imprisonment. Additionally, non-compliance can lead to the suspension or revocation of the aircraft's certificate of airworthiness, which would render the aircraft unable to fly until the required modifications are made and verified by the Civil Aviation Safety Authority. The exact penalties for non-compliance are determined by the relevant authorities but can include substantial financial penalties and legal repercussions.