AD/CF700/12 - First And Second Stage Turbine Wheels

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Government, establish the framework for the regulation of civil aviation within the country. Part 39 of these regulations, specifically focusing on the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, includes various directives to ensure the safety and airworthiness of aircraft. The directive AD/CF700/12 pertains to the General Electric Turbine Engines of the CF700 Series, particularly addressing issues with the first and second stage turbine wheels. This directive was introduced to mitigate risks associated with the operational safety of these engines, ensuring that any identified defects or issues are rectified to maintain compliance with safety standards. The policy objective behind these regulations is to enhance the safety and reliability of civil aviation operations, thereby protecting the public and maintaining the integrity of the national airspace.

Scope and Application

The Civil Aviation Regulations 1998, specifically PART 39 - 106, applies to all CF700-2C turbine engines as mandated by the Civil Aviation Safety Authority (CASA) under the legislative instrument AD/CF700/12 concerning the First and Second Stage Turbine Wheels. This regulation is imperative for all entities and persons involved in the maintenance, operation, or certification of aircraft equipped with the specified turbine engines. The geographical scope of this regulation is national, extending its jurisdiction across the entire Commonwealth of Australia, thereby encompassing both state and territory boundaries. The regulation does not explicitly state exclusions or exemptions; however, compliance is to be achieved through adherence to the detailed instructions provided in the General Electric Service Bulletins (CF700) A72-111 and A72-112, or the Airworthiness Directive GE-T/25. The application of this regulation can be further extended or specified through subordinate instruments issued by CASA, which may provide additional operational guidelines or enforcement measures to ensure airworthiness standards are met.

Key Provisions

The Civil Aviation Regulations 1998, specifically in Part 39 - 106, under the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, address the critical safety requirements for General Electric Turbine Engines, particularly the CF700 series. Section AD/CF700/12 pertains to the First and Second Stage Turbine Wheels of the CF700-2C engine. This section mandates that all CF700-2C engines must comply with the specifications outlined in General Electric Service Bulletins (SBs) A72-111 and A72-112, or the Airworthiness Directive (AD) GE-T/25, to ensure the continued airworthiness of these engines. Compliance is to be achieved as detailed in these reference documents. The Act imposes specific obligations on the operators and owners of aircraft equipped with the CF700-2C engines. These parties are required to adhere to the compliance guidelines provided in the referenced General Electric SBs and ADs. This includes conducting necessary inspections, maintenance, and repairs to the First and Second Stage Turbine Wheels to meet the specified airworthiness standards. The regulations necessitate that any identified issues are rectified promptly and that the engines are maintained in a condition that ensures their continued safe operation. Failure to comply with the provisions of this Airworthiness Directive can result in serious legal and safety consequences. Section 106 of the Civil Aviation Regulations 1998 sets out that non-compliance with these directives can lead to enforcement actions by the Civil Aviation Safety Authority (CASA). Potential penalties include fines and legal action against the operator or owner of the aircraft. In cases where non-compliance is found to have caused or contributed to an aviation incident or accident, the penalties may be more severe, reflecting the gravity of the breach and its potential impact on public safety. The exact penalties are determined by CASA based on the specific circumstances of the non-compliance.