AD/BELL 206/3 - Forward Engine Mount Attachment - Inspection and Modification

Overview

The Civil Aviation Regulations 1998, amended in 2006, address the need for ensuring airworthiness and safety in civil aviation operations within Australia. This legislative instrument, issued by the Civil Aviation Safety Authority (CASA), is part of a broader regulatory framework designed to maintain high safety standards in the aviation sector. The specific directive in question, AD/BELL 206/3, pertains to the forward engine mount attachment for Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters, aiming to prevent potential structural failures by requiring regular inspections and modifications. The policy objective is to mitigate risks associated with identified vulnerabilities in the aircraft's design, thereby safeguarding the integrity of flight operations and the safety of all persons onboard.

Scope and Application

The Civil Aviation Regulations 1998, under PART 39 - 105, encompasses specific airworthiness directives concerning certain aircraft models, including the Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters. This particular directive, AD/BELL 206/3, applies to all model 206A helicopters with specified serial numbers. The directive mandates an inspection of the forward engine mount attachment at intervals not exceeding 25 hours of time in service, with a modification requirement by 1 August 1968 as outlined in Bell SB No. 206A-4A. This regulation applies to the Commonwealth of Australia, ensuring that the specified aircraft meet necessary safety standards. The applicability is limited to the mentioned serial numbers, and the directive does not explicitly mention any exclusions, exemptions, or thresholds. The Civil Aviation Safety Authority (CASA) may extend or restrict the application of this directive through subordinate instruments as needed to maintain safety standards.

Key Provisions

The Civil Aviation Regulations 1998, particularly under Part 39 - 105, establish specific airworthiness directives to ensure the safety of civil aviation. For the Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series helicopters, the Airworthiness Directive (AD/BELL 206/3) outlines key requirements (section 39-105). This directive is specifically focused on the forward engine mount attachment, mandating inspections and modifications to ensure continued airworthiness. The AD/BELL 206/3 requires that all specified model 206A helicopters with particular serial numbers undergo inspection at intervals not exceeding 25 hours of time in service (section 39-105(1)). Additionally, a modification must be completed by 1 August 1968 (section 39-105(2)). Compliance is to be achieved by following the instructions laid out in Bell SB No. 206A-4A (section 39-105(3)). This directive is crucial for maintaining the structural integrity and safety of the aircraft in question. Entities and individuals governed by these regulations must ensure that the specified inspections are performed within the stipulated timeframes and that any required modifications are completed by the designated date. Failure to comply with these directives can result in serious safety implications, as the regulations are designed to prevent potential hazards that could compromise the safety of the aircraft and its occupants. The Civil Aviation Regulations 1998 impose significant obligations on the operators and maintainers of the affected helicopters. Non-compliance with the inspection intervals or failure to complete the required modifications by the specified date can result in severe consequences. The exact nature of these consequences, including potential penalties or enforcement actions, is detailed elsewhere in the broader regulatory framework but is not explicitly stated in this particular directive. However, it is understood that failure to adhere to these airworthiness directives can lead to serious regulatory action, including potential grounding of the aircraft until compliance is achieved.