AD/DC4/4 - Goodyear 20DHBM Type Wheels - Flange Replacement

Overview

The Civil Aviation Safety Authority (CASA) has introduced the Civil Aviation Regulations 1998, particularly within Part 39 - 105 of the schedule of airworthiness directives, to address specific safety concerns relating to the operation of aircraft. This legislative instrument was enacted to ensure that all civil aircraft in Australia meet stringent safety standards, thereby protecting the public and maintaining the integrity of the aviation industry. The enactment body, being the Commonwealth of Australia's Parliament, aimed to create a robust regulatory framework that aligns with international safety standards and practices. The policy objective is clearly stated as the enhancement of safety measures through the enforcement of mandatory directives concerning the maintenance and operation of aircraft, specifically targeting issues such as the replacement of flanges on NK wheels for Douglas DC4 Series aeroplanes.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, governs the airworthiness directives for various aircraft types within Australian airspace, ensuring safety and compliance with civil aviation standards. This particular regulation, AD/DC4/4, pertains to Douglas DC4 Series Aeroplanes equipped with Goodyear 20DHBM Type NK wheels. It mandates the replacement of wheel flanges in compliance with either the Goodyear Service Bulletin (DC4) No. 1, the Federal Aviation Administration Advisory Directive 48-1-1, or the Airworthiness Notice 105.1.16.2.5.3. The scope of this directive applies to all aircraft operators, maintenance organisations, and individuals responsible for the maintenance and operation of Douglas DC4 Series Aeroplanes within the Commonwealth of Australia. The regulation leaves no room for exclusions or exemptions and requires strict adherence to the specified directives for maintaining the airworthiness of these aircraft. The application of this regulation can be further refined or extended through subordinate instruments issued by the Civil Aviation Safety Authority, which may include amendments or additional directives to address emerging safety concerns.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998, Part 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, specifically AD/DC4/4, pertain to the replacement of flanges on Goodyear 20DHBM type NK wheels for Douglas DC4 series aeroplanes. Section 39.105(1) mandates that the replacement must be carried out according to the guidelines set forth in either Goodyear SB (DC4) No. 1, FAA AD 48-1-1, or ANO 105.1.16.2.5. This directive ensures that the replacement meets the required safety standards and specifications for airworthiness. The obligations imposed by this Act on the parties or entities it governs are clear and specific. Operators and owners of Douglas DC4 series aeroplanes must ensure that the flange replacement on Goodyear 20DHBM type NK wheels is performed following the detailed instructions provided in the referenced documents. This includes the use of approved materials and techniques, and the completion of any necessary inspections to verify that the replacement meets the required safety standards. Furthermore, the Act requires that all work be performed by certified personnel and that records of the replacement be maintained and made available for inspection by the Civil Aviation Safety Authority (CASA) upon request. Breach of the provisions outlined in the Civil Aviation Regulations 1998 can lead to severe consequences. Section 39.105(2) stipulates that non-compliance with airworthiness directives is an offence. This can result in both civil and criminal penalties. Civil penalties may include fines and the potential grounding of the aircraft until compliance is achieved. In terms of criminal penalties, individuals or entities found in breach of these regulations may face imprisonment, with the maximum penalties varying based on the severity of the offence. It is important for all parties involved to adhere strictly to the requirements set forth in the legislation to avoid these potential consequences.