AD/CESSNA 188/28 - Throttle/Mixture Control Cable Attachment

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Parliament, represent a comprehensive framework designed to ensure the safety and efficiency of civil aviation in Australia. This legislative instrument includes specific parts addressing various aspects of aviation operations, with Part 39 focusing on the airworthiness of aircraft. Among these regulations, Schedule 105 specifically pertains to airworthiness directives, ensuring that aircraft maintain their airworthiness standards and comply with safety requirements. One such directive, AD/CESSNA 188/28, targets the Cessna 188 (Agwagon) Series Aeroplanes, addressing the issue of throttle/mixture control cable attachment for certain serial numbers fitted with a Continental IO-520D engine. The directive mandates action in accordance with Cessna SL SE74-20 and requires compliance within 100 hours of time in service after 30 September 1976, aiming to enhance the safety and reliability of these aircraft.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives, which are regulatory mandates for maintaining the airworthiness of aircraft. One such directive, AD/CESSNA 188/28, targets the Cessna 188 (Agwagon) series aeroplanes, applying to models A188B/A1 with specific serial numbers and those fitted with the Continental IO-520D engine. This regulation requires compliance with Cessna Service Letter SE74-20, which mandates action regarding the throttle/mixture control cable attachment within 100 hours of time in service after 30 September 1976. The directive applies to the specified Cessna aircraft models within the defined serial number range, thereby ensuring that these aircraft meet necessary safety standards. The geographic and jurisdictional reach of this regulation is national, operating under the authority of the Commonwealth of Australia and enforced by CASA. There are no exclusions or exemptions mentioned in the directive, and it does not extend or restrict its application through subordinate instruments in the provided text.

Key Provisions

The Civil Aviation Regulations 1998, under Part 39 - 105, contains specific directives for maintaining the airworthiness of certain aircraft. One such directive is AD/CESSNA 188/28, which applies to the Cessna 188 (Agwagon) series aeroplanes. This directive mandates particular actions concerning the throttle and mixture control cable attachment for certain models. Specifically, it targets aircraft with serial numbers within the range 18800833 to 18801629, 18801643, and 18801644, and fitted with the Continental IO-520D engine (Section 1). These directives require operators of the specified Cessna 188 aircraft to take action in accordance with Cessna Service Letter SE74-20. This means that the operators must follow detailed instructions provided by Cessna to ensure that the throttle and mixture control cables are correctly attached and functioning. The directive stipulates that this compliance must be achieved within 100 hours of the aircraft being in service after 30 September 1976 (Section 2). The obligations imposed by this directive are clear and must be adhered to by the operators. They must ensure that the required modifications or checks are carried out by certified personnel, as per the guidelines outlined in Cessna Service Letter SE74-20. This includes verifying the proper attachment and functionality of the throttle and mixture control cables, which are critical for the safe operation of the aircraft. Failure to comply with these requirements within the specified timeframe could result in the aircraft being deemed unairworthy (Section 3). In terms of consequences for non-compliance, the Civil Aviation Regulations 1998 impose penalties for operators who fail to adhere to the airworthiness directives. Non-compliance with the specified requirements can lead to significant penalties, both civil and criminal. The exact penalties can vary, but they may include fines and potential imprisonment for serious breaches that could endanger flight safety. The maximum penalties are determined by the severity of the non-compliance and the risk posed to aviation safety (Section 4).