AD/SWSA226/80 Amdt 1 - Elevator Torque Tube Corrosion

Overview

The Civil Aviation Regulations 1998, specifically within Part 39 - 105, introduced by the Civil Aviation Safety Authority, was enacted to address issues of aircraft safety through the issuance of Airworthiness Directives. This legislative instrument, F2006B07223, was established to ensure that aircraft maintain the highest standards of airworthiness, thereby protecting the public and enhancing the safety of civil aviation. The policy objective behind this directive is to mitigate risks associated with specific mechanical failures by mandating regular inspections and necessary repairs on particular models of aircraft. This particular Airworthiness Directive, AD/SWSA226/80 Amendment 1, targets the Fairchild (Swearingen) SA226 and SA227 series aeroplanes, focusing on the critical issue of elevator torque tube corrosion. It was introduced in response to reports of corrosion in the elevator torque tubes of these aircraft, which necessitated the requirement for specific actions to ensure the continued airworthiness and safety of the affected aircraft models.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, applies to certain Fairchild (Swearingen) SA226 and SA227 series aeroplanes, namely those with specific serial numbers and models, excluding those already equipped with designated elevator torque tube parts. This regulation applies to aircraft within the Commonwealth of Australia, overseen by the Civil Aviation Safety Authority. It mandates actions to address corrosion issues in the elevator torque tubes of the specified aircraft models and serial numbers, requiring inspections, repairs, or replacements as detailed in the Fairchild Aircraft Service Bulletins. Compliance with these directives is mandatory for all specified aircraft, with different deadlines set for various models, ensuring the safety and airworthiness of these aircraft within Australian airspace. This legislation ensures that the affected aircraft are maintained to the highest safety standards, preventing potential risks associated with structural corrosion in the elevator torque tubes.

Key Provisions

The Civil Aviation Regulations 1998, specifically in Part 39 - 105, under the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, includes AD/SWSA226/80 Amendment 1, which addresses elevator torque tube corrosion in Fairchild (Swearingen) SA226 and SA227 Series Aeroplanes. This Airworthiness Directive mandates actions to be taken in response to identified corrosion issues in the elevator torque tubes of certain aircraft models and serial numbers, particularly those that do not have specific part numbers installed (sections 1 and 2). The directive is applicable to SA226-T, SA226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AT, SA227-AC, and SA227-BC models within specified serial number ranges (section 3). The directive requires that action be taken in accordance with Fairchild Aircraft Service Bulletins 226-27-050 or 227-27-028, as applicable, and specifies that defective elevators must be replaced with approved part numbers (sections 4 and 5). The directive also includes a compliance timeline, requiring actions to be completed within six months for most affected aircraft, with an extended deadline for the SA227-BC model (section 6). This amendment, effective from 14 August 1997, aims to address corrosion issues by requiring inspections and potentially replacing the torque tubes to ensure the continued airworthiness of these aircraft (section 7). The obligations imposed by this Act are comprehensive, requiring aircraft owners, operators, and maintenance personnel to adhere to the specified service bulletins and replacement protocols (section 8). This includes conducting inspections for corrosion, applying preventative measures, or replacing the torque tubes where necessary, in order to maintain the structural integrity and safety of the aircraft (section 9). The directive's compliance deadlines must be strictly followed to ensure timely action is taken, thereby preventing potential safety hazards (section 10). Failure to comply with the Airworthiness Directive could lead to serious safety risks, and while the regulations do not explicitly state civil or criminal penalties, non-compliance could result in the grounding of the aircraft until the necessary actions are taken (section 11). Additionally, any failure to maintain airworthiness could result in enforcement actions by the Civil Aviation Safety Authority, potentially leading to fines or other regulatory sanctions (section 12). The overarching goal of these provisions is to ensure the highest standards of safety in civil aviation are maintained through rigorous adherence to airworthiness directives.