AD/BELL 206/112 Amdt 1 - Tail Rotor Yoke

Overview

The Civil Aviation Regulations 1998, which were enacted by the Parliament of Australia, address a range of safety standards and compliance requirements for civil aviation. Specifically, Part 39 - 105 within the Civil Aviation Safety Authority Schedule of Airworthiness Directives pertains to ensuring the safe operation of aircraft by issuing directives on maintenance and operational standards. One such directive, AD/BELL 206/112 Amendment 1, was introduced to address the identified issue of tail rotor yokes being manufactured with incorrectly located blade attaching bolt holes in Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 series helicopters. This amendment was necessitated to ensure safety and compliance with international standards, as evidenced by references to FAA and Italian ADs. The primary policy objective is to maintain high safety standards and ensure that all relevant aircraft are maintained in a safe operational condition. This legislative instrument was developed to provide clear and specific instructions to aircraft operators, ensuring that they adhere to the mandated inspection and maintenance schedules to avoid safety risks associated with the identified manufacturing defect. By aligning with international safety directives, the regulation aims to harmonise safety standards across different jurisdictions, thereby protecting both domestic and international airspaces.

Scope and Application

The Civil Aviation Regulations 1998, specifically PART 39 - 105, encompasses a comprehensive directive aimed at ensuring the airworthiness of certain helicopter models, namely the Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters, through Airworthiness Directives (AD). This particular legislative instrument, AD/BELL 206/112 Amendment 1, applies to all model 206A, 206B1, 206B11, 206L, 206L-1, 206L-3, Agusta Bell AB206A, and AB206B helicopters. The directive mandates an inspection of the tail rotor yoke in accordance with Bell Helicopter Alert Service Bulletins 206-88-41 or 206L-88-51, as appropriate, to address issues where the blade attaching bolt holes may have been incorrectly located during manufacturing. The compliance requirement stipulates that the inspection must be completed within 100 hours of time in service from 30 April 1989, unless already accomplished. This regulation extends to corresponding directives from the Federal Aviation Administration (FAA) and Italian authorities, thereby enforcing a national and international standard for the safety and operational integrity of these helicopter models.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, includes an Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) concerning the tail rotor yoke of Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 series helicopters. The directive, AD/BELL 206/112 Amendment 1, pertains to the tail rotor yoke of various models including 206A, 206B11, 206B111, 206L, 206L-1, 206L-3, Agusta Bell AB206A and AB206B (section 1). The directive mandates that an inspection be carried out in accordance with Bell Helicopter Alert Service Bulletin 206-88-41 or 206L-88-51, as applicable, to address issues where the blade attaching bolt holes on the tail rotor yoke have been manufactured incorrectly (section 2). Compliance with this directive is required unless the inspection has already been completed, and it must be done within 100 hours of the helicopter's time in service from 30 April 1989 (section 3). Operators and owners of the specified helicopter models must ensure that the inspection is conducted by appropriately qualified personnel and documented accordingly. The directive references similar actions taken by the Federal Aviation Administration (FAA) and Italian authorities, indicating a widespread concern and the importance of this safety measure (section 4). Failure to comply with this directive could potentially result in the helicopter being deemed unairworthy, which could lead to grounding and other regulatory penalties. While the Civil Aviation Regulations do not explicitly state penalties for non-compliance with an AD, the overarching framework of the Civil Aviation Act 1988 provides for substantial penalties, including fines and imprisonment, for breaches that result in serious safety incidents. Under the Civil Aviation Act 1988, non-compliance with an Airworthiness Directive can have serious ramifications. The Act empowers CASA to enforce compliance through various means, including the issuance of compliance orders, prohibition notices, and in severe cases, prosecution. The potential penalties for non-compliance can include significant fines and imprisonment, reflecting the gravity of ensuring the safety of air travel. For individuals, penalties can include fines of up to $22,000 and/or imprisonment for up to two years. For corporations, the fines can be substantially higher, reaching up to $1,100,000. These penalties underscore the importance of adhering to CASA's directives to maintain the highest safety standards in civil aviation (section 5).