Overview

The Civil Aviation Regulations 1998, specifically within Part 39 - 105, establish the framework for ensuring the airworthiness of aircraft in Australia. This legislation was enacted to address safety concerns and establish a regulatory environment that protects the public and ensures that aircraft operations are conducted with the highest standards of safety. The regulations are overseen by the Civil Aviation Safety Authority (CASA) and are designed to ensure that all civil aviation activities in Australia comply with international standards and best practices. The policy objective of these regulations is to maintain and enhance the safety of civil aviation operations through rigorous oversight and adherence to established airworthiness directives. The legislative instrument F2006B05466 pertains to the Piper PA-23 (Apache and Aztec) Series Aeroplanes and mandates specific maintenance actions to ensure continued airworthiness. One such directive, AD/PA-23/40 Amendment 1, focuses on the inspection of the front spar of the model PA-23-250. This directive applies to aircraft that have accumulated 100 hours of service after 9 December 1970 and requires the inspection of the inboard end of the lower flange of the front spar, identified by part number 16010, for any signs of cracking. These measures are integral to the overarching goal of maintaining the safety and reliability of aircraft operations within Australia.

Scope and Application

The Civil Aviation Safety Authority Schedule of Airworthiness Directives, as outlined in the Civil Aviation Regulations 1998, specifically governs the safety standards for aircraft operating within Australia's jurisdiction. This legislative instrument applies to operators and owners of Piper PA-23 (Apache and Aztec) series aeroplanes, necessitating compliance with airworthiness directives to ensure the continued safe operation of these aircraft. The requirement outlined in AD/PA-23/40 Amendment 1 mandates that the inboard end of the lower flange of the front spar, part number 16010, be inspected for any signs of cracking. This inspection must occur at intervals not exceeding 100 hours of time in service following 9 December 1970, establishing a specific maintenance protocol that must be adhered to by the aircraft operators. The directive underscores the importance of regular and thorough inspections to maintain the structural integrity of the aircraft and ensure compliance with national aviation safety standards.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998, specifically Part 39 - 105, are concerned with the issuance of airworthiness directives, such as AD/PA-23/40 (paragraph 1). This directive applies to Piper PA-23 (Apache and Aztec) series aeroplanes, particularly the model PA-23-250. The key requirement outlined in this directive is the inspection of the inboard end of the lower flange of the front spar, identified by part number 16010, for any signs of cracking (paragraph 2). The inspection must be carried out at intervals not exceeding 100 hours of time in service after a specified date, 9 December 1970 (paragraph 3). The obligations imposed by this directive on the parties governed, such as aircraft owners and operators, are clear and specific. They must ensure that the inspection of the front spar is performed according to the stipulated intervals. This involves scheduling and carrying out the inspection with the necessary expertise and tools to accurately assess the condition of the front spar, particularly focusing on any indications of cracking that could compromise the aircraft's structural integrity. Compliance with this requirement is critical to maintaining the airworthiness of the aircraft. Failure to comply with the airworthiness directive can lead to serious consequences. The regulations do not explicitly state penalties in this excerpt, but non-compliance with airworthiness directives generally can result in severe civil or criminal penalties under the Civil Aviation Act 1988. These penalties can include substantial fines, suspension or revocation of the aircraft's certificate of airworthiness, and potential criminal charges if the non-compliance results in an accident or endangers safety. The specific maximum penalties are not detailed in the provided text but are outlined in the broader Civil Aviation Act. The overarching goal is to ensure that all aircraft meet stringent safety standards to protect passengers, crew, and the general public.