Overview

The Civil Aviation Regulations 1998, amended by the Civil Aviation Amendment (Safety) Regulations 2006 (F2006B10704), introduced specific airworthiness directives to address safety issues related to certain aircraft models. This legislation was enacted by the Commonwealth of Australia and is administered by the Civil Aviation Safety Authority (CASA). The primary objective of this regulatory framework is to ensure the safety of air travel by mandating regular inspections and maintenance of critical components on specific aircraft models, such as the McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters. The policy objective behind these regulations is to prevent in-flight failures and ensure the structural integrity of the aircraft by identifying and addressing potential issues before they can result in accidents. This particular legislative instrument focuses on the inspection of the collective torque tube and bungee support bracket on the model 369H series helicopters. The directive requires these inspections to be performed within 100 hours of time in service after 31 January 1980, aiming to detect cracks and ensure proper seating and thickness of the support brackets. The detailed requirements are outlined in Hughes Service Instruction Notice (SIN) No. HN-146, which provides the necessary guidance for compliance with the safety directives.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandate the application of airworthiness directives issued by the Civil Aviation Safety Authority (CASA) to all operators of model 369H series helicopters. These regulations are designed to ensure the safety of aircraft operations by enforcing regular inspections and maintenance checks. The directive AD/HU 369/42 applies to all McDonnell Douglas (Hughes) and Kawasaki 369 Series helicopters, focusing on the inspection of the collective torque tube support bracket and cap, as well as the bungee support bracket. Operators must ensure these inspections are conducted within 100 hours of time in service after 31 January 1980, to check for cracks and to verify the correct seating of the cap and sufficient wall thickness of the machined face. The regulations apply on a Commonwealth level, extending across all states and territories in Australia, thereby enforcing a national standard for airworthiness and safety compliance. The scope of these directives may be further defined or extended through subordinate instruments, ensuring ongoing safety and regulatory compliance.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105 and the Civil Aviation Safety Authority Schedule of Airworthiness Directives (AD/HU 369/42), mandate the inspection of the collective torque tube and bungee support bracket on all McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters. This directive (AD/HU 369/42) requires that inspections be conducted within 100 hours of time in service after 31 January 1980 (1/80). The purpose of these inspections is to identify any cracks in the collective torque tube support bracket and cap, ensuring that the cap is correctly seated. Additionally, the bungee support bracket must be inspected for cracks and the sufficient wall thickness of one machined face must be confirmed. These regulations impose specific obligations on the operators of the 369H series helicopters. Operators are required to perform these inspections meticulously, ensuring that all components are thoroughly examined for any signs of damage or wear. The inspections must be carried out by certified personnel who are knowledgeable in the specific requirements outlined by the Civil Aviation Regulations 1998. Operators must maintain detailed records of all inspections, including any repairs or replacements made, and ensure that these records are readily available for review by the Civil Aviation Safety Authority (CASA) upon request. Failure to comply with the AD/HU 369/42 directive and the associated inspection requirements can lead to serious consequences. Under the Civil Aviation Act 1988, non-compliance can result in civil penalties. The maximum penalty for failing to adhere to an airworthiness directive is a substantial fine of up to $21,000 for an individual and up to $105,000 for a corporation. Furthermore, repeated or severe non-compliance may lead to more severe penalties, including potential criminal charges, which could result in imprisonment. These stringent measures underscore the importance of adhering to the regulatory requirements to ensure the safety and airworthiness of the aircraft involved.