AD/EMB-110/26 Amdt 1 - Elevator and Rudder Trim Actuators

Overview

The Civil Aviation Regulations 1998, specifically Part 39, addresses the safety and operational standards of aircraft in Australia, ensuring they meet necessary safety and airworthiness criteria. One of the key components of this legislation is the schedule of airworthiness directives, which provides specific safety requirements for various aircraft models. For instance, AD/EMB-110/26 Amendment 1 pertains to Embraer EMB-110 (Bandeirante) Series Aeroplanes, requiring inspection and specific modifications to the elevator and rudder trim actuators. This directive was enacted to address issues identified with the security of certain pins within the actuators, ensuring they do not compromise the aircraft's control and safety. The Australian Government, through the Civil Aviation Safety Authority, introduced this directive to maintain the integrity and safety of civil aviation operations by mandating compliance within a specified timeframe. This legislative instrument was created by the Commonwealth of Australia and is administered by the Civil Aviation Safety Authority, aiming to ensure that all aircraft meet stringent safety standards. The policy objective behind this directive is to mitigate risks associated with the specified actuators, thereby enhancing overall aircraft safety. Compliance with such directives is mandatory, reflecting the Australian Government's commitment to upholding high safety standards in civil aviation.

Scope and Application

The Embraer EMB-110 (Bandeirante) Series Aeroplanes AD/EMB-110/26 Amendment 1, part of the Civil Aviation Regulations 1998 under the Civil Aviation Safety Authority, applies to all models of EMB-110 aircraft. The directive mandates the inspection of specific elevator and rudder trim actuators to ensure the security of a particular pin within the actuator splined bushing and eyelet, with subsequent wirelocking using 22 SWG wire to prevent movement, while ensuring the actuator's travel remains unrestricted. This directive is integral for maintaining the airworthiness of the specified aircraft models, and compliance is required within 10 hours of time in service after the directive's issuance on 17 March 1983. The directive extends to encompass additional part numbers identified through Embraer's service bulletin No. 110-27-071, reflecting experiences that necessitated these specific modifications. The application of this directive is comprehensive across all EMB-110 aircraft within the Commonwealth of Australia, ensuring adherence to the highest safety standards set forth by the Civil Aviation Safety Authority.

Key Provisions

The Embraer EMB-110 (Bandeirante) Series Aeroplanes AD/EMB-110/26 Amendment 1 pertains to the elevator and rudder trim actuators, specifically focusing on the security of the pin within the actuator splined bushing and eyelet (section 1). The directive applies to all models within the EMB-110 series (section 1). The main requirements outlined in the directive include an inspection of specific part numbers of the elevator and rudder trim actuators, ensuring the pin P/N MS1652-226 is secured within the actuator splined bushing and eyelet as detailed in the Embraer illustrated parts breakdown (section 1.1). Additionally, the directive mandates that a wirelock pin be used to secure the specified part numbers, using 22 SWG wire (section 1.2). It is also crucial that the wirelocking process does not impede the full and free travel of the actuators (section 1.3). Compliance with these requirements must be achieved within 10 hours of time in service after 17 March 1983 (section 1.4). The Embraer EMB-110 (Bandeirante) Series Aeroplanes AD/EMB-110/26 Amendment 1 imposes specific obligations on the parties responsible for maintaining the airworthiness of the EMB-110 series aeroplanes. Primarily, these obligations involve conducting thorough inspections of the specified elevator and rudder trim actuator parts to ensure the pin P/N MS1652-226 is correctly secured within the actuator splined bushing and eyelet (section 1.1). Furthermore, these parties must use a wirelock pin with 22 SWG wire to secure the identified part numbers and must verify that this wirelocking does not restrict the full and free movement of the actuators (section 1.2 and 1.3). Compliance with these obligations must be achieved within 10 hours of time in service following the directive's effective date of 17 March 1983 (section 1.4). Failure to comply with the requirements and obligations outlined in Embraer EMB-110 (Bandeirante) Series Aeroplanes AD/EMB-110/26 Amendment 1 may result in civil or criminal consequences. Specifically, if the mandated inspections and wirelocking procedures are not performed correctly and within the stipulated timeframe, it may lead to the aeroplane being deemed non-airworthy. This non-compliance could potentially result in severe safety risks, thereby attracting penalties under the Civil Aviation Act 1988 and other relevant legislation. The exact penalties may vary depending on the severity of the breach but could include fines, imprisonment, or both. The directive itself does not specify maximum penalties, but these would be determined by the applicable aviation safety regulations and legal frameworks.