AD/TFE 731/7 Amdt 2 - Turbine Interstage Transition Duct

Overview

The Civil Aviation Regulations 1998, specifically Part 39 - 106, which pertains to the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, was enacted to ensure that civil aviation operations in Australia adhere to stringent safety standards. This legislative instrument addresses the need to maintain the airworthiness of aircraft and their components, with a focus on safety and compliance with international standards. The Civil Aviation Regulations 1998 were enacted by the Parliament of Australia to establish a comprehensive regulatory framework governing the safety and efficiency of civil aviation within Australia's jurisdiction. The policy objective of these regulations is to safeguard the public by ensuring that all aspects of civil aviation, including aircraft, personnel, and operations, meet high safety standards, thereby minimising the risk of accidents and incidents. This particular amendment, concerning the AlliedSignal (Garrett/AiResearch) Turbine Engines - TFE731 Series, aims to update the airworthiness directives to incorporate the latest safety recommendations and requirements issued by the manufacturers and regulatory authorities such as the Federal Aviation Administration (FAA).

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 106, governs the maintenance and airworthiness of aircraft engines within Australia, extending to all aircraft engines registered under the Civil Aviation Act 1988. This regulation mandates that any person or entity responsible for the maintenance of AlliedSignal (Garrett/AiResearch) Turbine Engines - TFE731 Series must comply with the Airworthiness Directives issued by the Civil Aviation Safety Authority. The directive applies to TFE 731-2, -3, -3A, -3AR, -3B, -3BR and -3R engines, specifically those whose serial numbers are outlined in the requirement document. Compliance is required unless the previous issue of this directive has already been fulfilled, with adherence necessary at the next major periodic inspection or the next access of the affected part, whichever comes first after 30 June 1986. The regulation is enforced nationally across Australia, ensuring a uniform standard of safety and maintenance across the industry. Additionally, the scope of the regulation is extended and detailed through subordinate instruments, which may include specific guidance notes, requirement documents, and service bulletins from the manufacturers. These documents provide detailed instructions and technical specifications necessary for compliance, ensuring that all persons and entities maintain the highest standards of aviation safety. The regulation does not explicitly state any exclusions or exemptions, implying that all applicable engines must adhere to the specified requirements.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 106, which pertains to the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives, contains key provisions concerning the maintenance and safety of AlliedSignal (Garrett/AiResearch) Turbine Engines of the TFE731 series. One such provision is found in AD/TFE731/7 Amendment 2, which deals with the Turbine Interstage Transition Duct (section 11/87). This amendment applies to TFE 731-2, -3, -3A, -3AR, -3B, -3BR, and -3R engines with specific serial numbers detailed in the Requirement document. The directive requires action to be taken in accordance with the manufacturer's Service Bulletin (SB) TFE-731-72-3159 Revision 6 (section 11/87). The obligations imposed by this directive are clear and straightforward. Owners and operators of the specified TFE731 series engines must ensure compliance with the requirements outlined in SB TFE-731-72-3159 Revision 6. This compliance must be achieved at the next major periodic inspection or the next access of the affected part, whichever occurs first after 30 June 1986 (section 11/87). Notably, compliance with the previous issue of this directive satisfies the requirements of this amendment, providing some flexibility for those who have already acted on prior directives. In terms of consequences, failure to comply with the AD/TFE731/7 Amendment 2 could result in significant repercussions. Although the specific penalties are not detailed in the text provided, non-compliance with CASA directives can generally lead to enforcement actions, including fines and potential grounding of aircraft. The severity of the penalties can vary based on the nature and extent of the non-compliance, and in extreme cases, could result in criminal charges against the responsible individuals or entities. Therefore, it is crucial for all parties governed by this directive to adhere strictly to the outlined requirements to avoid any adverse outcomes.