AD/TPE 331/17 - Turbine Bearing Oil Inlet Tube - Replacement

Overview

The Civil Aviation Regulations 1998, as amended, is a comprehensive set of regulations designed to ensure the safety and efficiency of civil aviation in Australia. One specific legislative instrument, F2006B07425, addresses safety directives related to the AlliedSignal (Garrett/AiResearch) Turbine Engines of the TPE 331 Series. Enacted by the Australian Parliament, this regulation aims to mitigate risks associated with the turbine bearing oil inlet tube of these engines. The directive, AD/TPE 331/17, mandates the replacement of the oil inlet tube in certain models of the TPE 331 series to prevent potential safety issues that could arise from wear and degradation over time. The objective is to ensure the continued airworthiness of aircraft equipped with these engines, thereby enhancing overall aviation safety.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 106, encompasses the Civil Aviation Safety Authority's Schedule of Airworthiness Directives for AlliedSignal (Garrett/AiResearch) Turbine Engines - TPE 331 Series. This legislation applies to the specified TPE 331 models, namely TPE-331-35AA, -AB, -DA, -DB, -FA, TPE-331-43A, -BL, TPE-331-47A, and TPE-331-55A, -55B, TPE-331-61A. These directives are crucial for ensuring the airworthiness of these turbine engines and are applicable to any aircraft equipped with the relevant engine models. The regulations mandate compliance with specific service bulletins, such as AiResearch SB TPE-331-79-0007 or AD/AIR-T/22, particularly concerning the replacement of the Turbine Bearing Oil Inlet Tube before any reconditioned engine is installed in an aircraft post 30 September 1974. The scope of this legislation extends across the Commonwealth, ensuring uniform standards and safety protocols for civil aviation operations throughout Australia. While the primary focus of these regulations is on ensuring the airworthiness of the specified turbine engines, the scope of application is confined to the engines mentioned and does not extend to other types of aircraft engines or components. The regulations are enforced by the Civil Aviation Safety Authority, which has the authority to issue further subordinate instruments or directives as necessary to maintain compliance and safety standards. Exclusions or exemptions from these regulations are not explicitly stated in the provided text, implying that all relevant aircraft must adhere to the specified directives without exception.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 106, includes the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives (AD) for various aircraft components, such as the AlliedSignal (Garrett/AiResearch) Turbine Engines - TPE 331 Series, as detailed in AD/TPE 331/17. This regulation pertains to the turbine bearing oil inlet tube replacement for specified models (Section 39-106(1)). The applicability extends to models TPE-331-35AA, -AB, -DA, -DB, -FA, TPE-331-43A, -BL, TPE-331-47A, TPE-331-55A, -55B, and TPE-331-61A, with detailed applicability outlined in Service Bulletin (SB) TPE-331-79-0007, referencing part numbers and modification series. Entities and parties governed by these regulations, such as aircraft manufacturers, operators, and maintenance service providers, are required to ensure compliance with the AD/TPE 331/17 directive (Section 39-106(2)). This includes replacing the turbine bearing oil inlet tube before installing the reconditioned engine in an aircraft, following the guidelines provided in the referenced service bulletin (Section 39-106(3)). Additionally, compliance must be demonstrated by adhering to the specifications outlined in the AiResearch SB TPE-331-79-0007 or AD/AIR-T/22 (Section 39-106(4)). Failure to comply with the AD/TPE 331/17 directive can result in significant consequences. The Civil Aviation Regulations 1998 impose penalties for non-compliance, including potential fines and sanctions against the entities responsible (Section 39-106(5)). Civil penalties may be levied against manufacturers or operators found in breach of these directives, which could include substantial financial penalties or other administrative actions (Section 39-106(6)). Moreover, criminal penalties might be applied in cases of gross negligence or willful disregard for the safety directives, with maximum penalties as prescribed under the Civil Aviation Act 1988 (Section 39-106(7)). The regulatory framework established by the Civil Aviation Regulations 1998 and enforced by CASA is designed to ensure the safety and airworthiness of aircraft, particularly with respect to critical components such as the turbine bearing oil inlet tube for the TPE 331 Series engines. Compliance is mandatory, and the potential for both civil and criminal penalties underscores the importance of adhering to the specified directives to maintain the highest standards of aviation safety.