AD/TURMO/3 - Gas Generator Rear Bearing - Permeability Checks

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Legislation au F2006B07521 Not in force Legislative Instrument

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Turbomeca Turbine Engines - Turmo Series

 

AD/TURMO/3  Gas Generator Rear Bearing - Permeability Checks

Applicability: Turbo 111 C3, C5, C6, E3 and E6 engines. Requirement:  1. Turbomeca SL No. 220/71/41; or

2. AD/TURB-T/5.

 

Compliance: As detailed in the requirement document.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


12/85

Overview

The Civil Aviation Regulations 1998, specifically under Part 39 - 106, address the safety and airworthiness of aircraft and associated components, such as the Turbomeca Turmo series turbine engines. Enacted by the Parliament of Australia, this regulation was introduced to ensure that civil aviation operations within Australia adhere to stringent safety standards, thereby protecting public safety and maintaining the integrity of the national airspace. The policy objective is to mandate regular and rigorous checks on the gas generator rear bearing permeability of certain Turbomeca engines to prevent potential failures that could compromise flight safety. By imposing these checks, the regulation aims to mitigate risks associated with engine performance and reliability, ultimately fostering a safer aviation environment.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 106, governs the applicability and enforcement of airworthiness directives in Australia. This regulation applies to all aircraft engines, including those within the Turbomeca Turmo series, which encompasses Turbo 111 C3, C5, C6, E3, and E6 engines. The directive mandates compliance with either Turbomeca SL No. 220/71/41 or AD/TURB-T/5, which entails specific permeability checks on the gas generator rear bearing. This regulation extends its reach throughout the Commonwealth, ensuring uniformity in airworthiness standards across all states and territories. The application of these regulations is not restricted by any specified exclusions or exemptions in the provided text, but compliance is strictly enforced to maintain safety standards in civil aviation. Subordinate instruments may further detail the implementation and compliance requirements of these directives, ensuring that all relevant parties adhere to the prescribed safety measures.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998, specifically PART 39 - 106 concerning the Civil Aviation Safety Authority Schedule of Airworthiness Directives, outline specific requirements for maintaining the airworthiness of certain turbomeca turbine engines. In this instance, AD/TURMO/3 focuses on the gas generator rear bearing permeability checks for Turbomeca Turmo Series engines, namely Turbo 111 C3, C5, C6, E3, and E6 engines (Section 12/85). The directive mandates adherence to either Turbomeca SL No. 220/71/41 or AD/TURB-T/5 to ensure compliance with airworthiness standards (Section 12/85). The obligations imposed by this legislation are clear and directive. Owners and operators of the specified engines must ensure that the permeability checks for the gas generator rear bearing are conducted as per the requirement documents (Section 12/85). These checks are crucial for maintaining the structural integrity and operational safety of the engines, thus ensuring compliance with airworthiness standards. Failure to adhere to these directives could potentially result in the engine being deemed unairworthy, leading to grounding of the aircraft until the necessary checks and repairs are performed. Breaches of these airworthiness directives can lead to significant consequences. Civil Aviation Safety Authority regulations impose strict penalties for non-compliance. These penalties can include fines, enforcement actions, and in severe cases, criminal charges. The maximum penalties for non-compliance with airworthiness directives can be substantial, reflecting the critical nature of ensuring that aircraft components meet safety standards. Specifically, under the Civil Aviation Act 1988, serious breaches may result in fines of up to $500,000 for corporations and lesser amounts for individuals, alongside potential imprisonment terms for criminal offences. Such stringent measures underscore the importance of adhering to these directives to maintain the highest safety standards in aviation.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.