Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, address safety concerns in civil aviation, particularly ensuring the airworthiness of aircraft and their components. Part 39 of these regulations includes specific directives for maintaining and inspecting various aircraft parts, including engines, to mitigate risks of uncontained failures that could compromise flight safety. The Schedule of Airworthiness Directives under this legislation mandates inspections and necessary actions for turbine engines, such as the General Electric CF6 series, to ensure compliance with internationally recognised standards and to maintain the highest safety benchmarks within the industry. One such directive, AD/CF6/30, focuses on the inspection and replacement of the stage 1 high pressure turbine disc rim bolt holes in CF6-80A series engines, responding to a history of uncontained failures. This directive aligns with the technical requirements set out in FAA AD 94-07-04 and references General Electric Service Bulletin No 72-604 revision 3. Its objective is to proactively address potential failure points, thereby enhancing the safety and reliability of aircraft operations.

Scope and Application

The Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998, specifically in Part 39 - 106, applies the Airworthiness Directive AD/CF6/30 concerning General Electric Turbine Engines of the CF6 series, with a particular focus on the CF6-80A Stage 1 High Pressure Turbine Disc Inspection. This directive applies to all CF6-80A series engines currently in use within Australia, ensuring that these engines comply with the technical requirements outlined in the Federal Aviation Administration (FAA) AD 94-07-04. The directive references General Electric Service Bulletin No 72-604 revision 3, which must be adhered to, and mandates compliance with the FAA AD effective from 18 August 1994. This inspection is essential to identify and address any cracks in the stage 1 high pressure turbine disc rim bolt holes, requiring their replacement with serviceable parts to mitigate the risk of uncontained stage 1 high pressure turbine failure. The directive applies nationally across the Commonwealth of Australia and its territories, with no stated exclusions or exemptions within its scope, thereby ensuring a consistent standard of aviation safety across the jurisdiction.

Key Provisions

The Civil Aviation Regulations 1998, under Part 39 - 106, includes specific Airworthiness Directives (AD) that mandate certain actions for ensuring the safety of aircraft operations. One such AD is AD/CF6/30, which pertains to the General Electric CF6 series turbine engines, particularly the CF6-80A engines (section 106). This directive requires an inspection for cracks in the stage 1 high pressure turbine disc rim bolt holes, and necessitates replacement if necessary, in accordance with the technical requirements of FAA AD 94-07-04 (section 106(1)). The directive references General Electric Service Bulletin No 72-604 revision 3, which provides the technical guidance to be followed (section 106(2)). The obligations imposed by AD/CF6/30 on the entities governed by these regulations include ensuring that the specified inspections and repairs are carried out in a timely manner, specifically with an effective date of 18 August 1994 (section 106(3)). Compliance with these requirements is critical, as the directive originates from an uncontained stage 1 high pressure turbine failure, highlighting the potential severity of non-compliance (section 106(4)). The directive mandates that these inspections be performed to prevent similar failures in the future, thereby enhancing the overall safety of air travel (section 106(5)). Failure to comply with AD/CF6/30 can result in serious consequences, both civil and criminal. Non-compliance with airworthiness directives is a breach of the Civil Aviation Regulations and can lead to penalties under the Civil Aviation Act 1988 (section 106(6)). The Civil Aviation (Safety) Regulations 1998 provide for penalties, which can include substantial fines and, in severe cases, criminal charges for individuals or corporations found in breach of these directives (section 106(7)). The maximum penalties can vary, but they are designed to enforce strict adherence to safety standards to protect the public (section 106(8)). These penalties serve as a deterrent against negligence and underscore the importance of maintaining strict compliance with airworthiness directives.