AD/BELL 212/45 - Tailboom Upper Longeron Splice

Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), were enacted to establish standards for the safety of civil aviation in Australia. Part 39 of these regulations addresses airworthiness directives, which are mandatory orders issued to ensure the safe operation of aircraft. Specifically, the Bell Helicopter Textron 212 Series Helicopters AD/BELL 212/45 concerns a directive issued in response to recent incidents involving cracked longeron splices on certain model 212 helicopters. The objective of this directive is to mitigate the risk of such incidents by requiring inspections and necessary actions as outlined in Bell Alert SB No 212-90-63 dated 20 July 1990. This intervention aims to ensure the continued safety and airworthiness of the specified helicopters by mandating timely inspections and repairs. The enactment of this airworthiness directive is a proactive measure to address safety concerns identified in the Bell Helicopter Textron 212 Series, specifically those related to structural integrity issues in the upper longeron splices. The directive applies to all model 212 helicopters within specified serial number ranges and requires initial inspections within 300 hours of time in service after 24 January 1991, with subsequent inspections at intervals not exceeding 300 hours. This regulatory action by CASA is aimed at ensuring compliance with safety standards and maintaining the operational safety of these aircraft.

Scope and Application

The Civil Aviation Regulations 1998, specifically under PART 39 - 105 and the Civil Aviation Safety Authority Schedule of Airworthiness Directives, mandates that certain model 212 Bell Helicopter Textron Series, identified by specific serial numbers, comply with the requirements set forth in Bell Alert SB No 212-90-63 dated 20 July 1990. This regulation applies to all Bell Helicopter Textron 212 Series helicopters with serial numbers ranging from 30501 to 30999, 31101 to 31311, 32101 to 32142, and 35001 to 35022. The directive requires action to be taken within 300 hours of time in service after 24 January 1991 and necessitates that inspections are repeated at intervals not exceeding 300 hours of time in service. These measures are in response to recent incidents involving cracked upper longeron splices, which have prompted the requirement for an inspection opening and ongoing inspections to ensure safety and compliance.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, detail the Civil Aviation Safety Authority’s schedule of airworthiness directives for certain Bell Helicopter Textron 212 Series Helicopters. The focus here is on AD/BELL 212/45, which pertains to the tailboom upper longeron splice, a critical structural component of the helicopter. This directive applies to all model 212 helicopters with specific serial numbers ranging from 30501 to 30999, 31101 to 31311, 32101 to 32142, and 35001 to 35022. The regulation requires adherence to Bell Alert SB No 212-90-63 dated 20 July 1990, which includes detailed procedures and specifications for the inspection and maintenance of the upper longeron splice. The primary requirement of this directive is that operators must ensure their helicopters undergo inspections and necessary actions as per the specified Bell Alert. For Part 1 of the directive, compliance must be achieved within 300 hours of time in service after 24 January 1991. Subsequent inspections, as outlined in Part 2, must occur at intervals not exceeding 300 hours of time in service thereafter. These inspections are crucial for identifying and addressing any potential issues with the upper longeron splice, which has been the subject of recent incidents involving cracks. The directive mandates the installation of an inspection opening to facilitate these repetitive checks. Operators of the affected helicopters are required to ensure that all specified inspections and maintenance actions are carried out meticulously, in accordance with the Bell Alert instructions. Failure to comply with the airworthiness directive may result in the helicopter being deemed unairworthy, which could lead to severe operational disruptions and safety risks. Additionally, non-compliance with the regulatory requirements could result in enforcement actions by the Civil Aviation Safety Authority, including fines, enforcement notices, or even the grounding of the affected aircraft. The seriousness of these potential consequences underscores the importance of adhering to the directive’s stipulations. In terms of penalties and consequences, the Civil Aviation Act 1988 provides for significant repercussions for non-compliance with airworthiness directives. Operators found in breach of these regulations may face substantial fines, with maximum penalties potentially reaching thousands of Australian dollars. Furthermore, persistent non-compliance could lead to more severe penalties, including imprisonment for directors or responsible individuals. The Civil Aviation Safety Authority has the authority to issue enforcement notices, direct the grounding of non-compliant aircraft, and take legal action to ensure compliance with safety standards. These measures are in place to uphold the highest standards of aviation safety and to protect the public from potential hazards associated with non-compliant aircraft operations.