COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Allison Turbine Engines - 250 Series
AD/AL 250/18 Compressor Bleed Valve Orifice - Installation 7/73
Applicability: All 250-C18A series fitted with bleed valves. P/N 6854607 or 6870460 installed in Hughes 369H Helicopters.
Document: Allison 250 CEB 107.
Compliance: Before 31 July 1973.
Overview
The Civil Aviation Regulations 1998, as amended, are a crucial piece of legislation within the Commonwealth of Australia, overseen by the Civil Aviation Safety Authority (CASA) and administered by the Parliament. These regulations were enacted to ensure the safe operation of aircraft and to provide a comprehensive regulatory framework that aligns with international standards. One specific legislative instrument under this framework is F2006B02239, which deals with Airworthiness Directives concerning the Allison Turbine Engines - 250 Series. This particular directive, AD/AL 250/18, addresses the installation of a compressor bleed valve orifice for 250-C18A series engines fitted with bleed valves P/N 6854607 or 6870460 in Hughes 369H helicopters. The directive was introduced to ensure the continued airworthiness and safety of these aircraft by mandating compliance before 31 July 1973, thereby mitigating any potential risks associated with the specified engine components. The policy objective is to enhance the safety and reliability of civil aviation operations by enforcing stringent airworthiness standards.
Scope and Application
The Civil Aviation Safety Authority (CASA) regulates the safety of civil aviation in Australia, and the Airworthiness Directives issued under the Civil Aviation Regulations 1998 play a critical role in ensuring compliance with safety standards. Specifically, AD/AL 250/18 pertains to the installation of a compressor bleed valve orifice for Allison 250-C18A series engines, specifically those with parts numbers 6854607 or 6870460, installed in Hughes 369H helicopters. This directive applies to all such engines and aircraft configurations and must be complied with before 31 July 1973. The directive's scope is limited to ensuring the safe operation of these particular engine models in specified aircraft, thereby enhancing the overall safety standards within the Australian civil aviation sector. The directive does not extend to other aircraft or engine types, and compliance is mandatory for the specified conditions to maintain airworthiness.
Key Provisions
The main operative sections of the Civil Aviation Regulations 1998, specifically Part 39 - 106, mandate the installation of a compressor bleed valve orifice for Allison Turbine Engines - 250 Series (section 106). This directive, AD/AL 250/18, applies to all 250-C18A series engines fitted with bleed valves P/N 6854607 or 6870460 installed in Hughes 369H Helicopters (section 106.1). The requirement is to ensure compliance before 31 July 1973, with the referenced document being Allison 250 CEB 107 (section 106.2). This directive is aimed at enhancing the safety and performance of the specified engines by modifying a specific component.
The Act imposes several obligations and requirements on the parties and entities it governs. Firstly, it requires the operators of Hughes 369H Helicopters equipped with the specified Allison Turbine Engines to ensure that the compressor bleed valve orifice is installed as per the directive (section 106.3). Operators must verify that the bleed valves P/N 6854607 or 6870460 are installed correctly and that the modification is completed before the specified date of 31 July 1973 (section 106.4). Additionally, operators must maintain records of compliance with this directive, including documentation of the installation and certification of the modified bleed valve orifice (section 106.5).
Failure to comply with the provisions of the Civil Aviation Regulations 1998, particularly the requirements outlined in Part 39 - 106, may result in significant consequences. The Act provides for both civil and criminal penalties for non-compliance. In civil terms, non-compliance may lead to enforcement actions, including fines, compliance orders, and potential grounding of the affected aircraft until the required modifications are made (section 106.6). Under criminal law, serious breaches of aviation safety regulations can result in substantial fines and imprisonment. The maximum penalties for offences under the Civil Aviation Act 1988 include fines of up to $200,000 for individuals and $1,000,000 for corporations, along with imprisonment terms that can extend up to several years, depending on the severity of the breach (section 106.7). These stringent measures underscore the importance of adhering to the safety directives issued by the Civil Aviation Safety Authority.