AD/BELL 212/44 - Swashplate Outer Ring

Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), were enacted to ensure the safety and efficiency of civil aviation in Australia. One of the key components of these regulations is the scheduling of airworthiness directives, such as the one introduced for Bell Helicopter Textron 212 Series Helicopters, identified as AD/BELL 212/44. This directive was established in response to a critical issue identified in the swashplate outer ring of certain helicopters, which was found to have a casting fault that could lead to cracking at the trunnion attachment points. This flaw posed a significant risk to the safety of these aircraft, necessitating immediate and comprehensive inspection and corrective action. The policy objective of this directive is to ensure that all affected helicopters undergo the required inspection and necessary repairs before they can be cleared for further flight, thereby maintaining the highest standards of aviation safety.

Scope and Application

The Civil Aviation Safety Authority (CASA) has issued Airworthiness Directives under the Civil Aviation Regulations 1998, specifically targeting the Bell Helicopter Textron 212 series helicopters. This legislation applies to all Bell Model 212 helicopters with specific serial numbers, including those ranging from S/N 30501 through 30999, 31101 through 31311, 32101 through 32142, and 35001. The requirement under AD/BELL 212/44 necessitates actions in accordance with Bell Helicopter Textron's Airworthiness Service Bulletin 212-90-61. Compliance with this directive is mandatory and must be undertaken prior to any further flight after 25 May 1990. This directive is a response to a known issue involving a casting fault in the swashplate outer ring, which could lead to cracking at the trunnion attachment points, thereby necessitating a fleet-wide inspection to ensure continued airworthiness. The scope of this directive is explicitly limited to the identified helicopter models and serial numbers, with no stated exclusions or exemptions within the parameters of the legislation.

Key Provisions

The key operative sections of the Civil Aviation Regulations 1998 (CAR) pertaining to the Bell Helicopter Textron 212 Series Helicopters are found in PART 39 - 105 of the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives. Specifically, AD/BELL 212/44 addresses the critical issue of the swashplate outer ring, a crucial component in the helicopter's flight control system. According to section (7/90 DM), all Model 212 helicopters with serial numbers ranging from 30501 to 30999, 31101 to 31311, 32101 to 32142, and 35001 are subject to this directive. The requirement is that an action must be taken in accordance with BHT ASB 212-90-61, and compliance must be achieved prior to further flight after 25 May 1990. This Act imposes significant obligations on the operators and owners of the affected helicopters. Firstly, they must ensure that their helicopters are inspected and, if necessary, repaired or replaced in accordance with the specified maintenance bulletin (BHT ASB 212-90-61). This means conducting a thorough examination of the swashplate outer ring to identify any signs of casting faults or cracks at the trunnion attachment points. Secondly, these parties must maintain accurate records of all inspections and any actions taken as a result of the findings. Such records are essential for demonstrating compliance with the directive and for any future audits or investigations by CASA. Failure to comply with the provisions of AD/BELL 212/44 can result in severe consequences. Under the Civil Aviation Act 1988, non-compliance can lead to both civil and criminal penalties. Civil penalties may include fines, with the maximum penalty varying depending on the severity and circumstances of the breach. In cases of serious non-compliance, the operator or owner could also face criminal charges, which could result in substantial fines or imprisonment. Additionally, CASA has the authority to take enforcement actions such as grounding the helicopter or imposing operational restrictions until the required compliance is achieved. These measures are designed to ensure the safety of all air passengers and crew by mitigating the risk posed by the identified defect.