AD/CESSNA 185/25 - Induction Air Box Seal

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, serve to regulate and ensure the safety of civil aviation within the country. This legislation was introduced to address the need for stringent and uniform safety standards in the aviation industry, ensuring the protection of passengers, crew, and the general public. One of the specific measures included within these regulations is the Airworthiness Directives, which are legally enforceable rules aimed at maintaining the airworthiness of aircraft. The directive in question, AD/CESSNA 185/25, pertains to the Cessna 185 Series Aeroplanes and specifically mandates actions related to the induction air box seal for models within certain serial number ranges. This directive requires compliance within 100 hours of time in service following 30 June 1977, aligning with the Federal Aviation Administration's Amendment 39-2838 to ensure that the aircraft meet necessary safety standards.

Scope and Application

The Civil Aviation Safety Authority Schedule of Airworthiness Directives, specifically Part 39 - 105 AD/CESSNA 185/25, pertains to Cessna 185 Series Aeroplanes with serial numbers ranging from 18500001 to 18501832. This regulation applies to the specified model of aeroplanes and mandates compliance with Cessna Service Letter No. SE76-18, in alignment with the Federal Aviation Administration’s AD 77-04-05 Amendment 39-2838. The directive necessitates action concerning the induction air box seal, with compliance required within 100 hours of time in service following 30 June 1977. This regulation forms part of the Civil Aviation Regulations 1998, governing aviation safety standards within the Commonwealth of Australia, thereby ensuring that all relevant aircraft within the specified serial number range adhere to the stipulated airworthiness directives.

Key Provisions

The Civil Aviation Regulations 1998, specifically under Part 39, Section 105, outlines the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives. Within this framework, AD/CESSNA 185/25 pertains to the Cessna 185 Series Aeroplanes, targeting a critical component—the induction air box seal. This directive applies to Model 185 aircraft with serial numbers ranging from 18500001 to 18501832. The directive mandates compliance with Cessna Service Letter (SL) No. SE76-18, and it aligns with the Federal Aviation Administration's (FAA) AD 77-04-05 Amendment 39-2838. The primary requirement of this directive is to ensure that the action specified in Cessna SL No. SE76-18 is executed on the induction air box seal. This action is critical for maintaining the airworthiness of the aircraft, ensuring that the seal is properly installed or replaced to prevent potential hazards during flight. Compliance with this directive is mandatory for the specified aircraft models and serial numbers. The directive stipulates that the required action must be completed within 100 hours of time in service after 30 June 1977. The obligations imposed by this directive are clear and non-negotiable. Aircraft operators and maintenance personnel must adhere to the detailed instructions provided in Cessna SL No. SE76-18. This includes, but is not limited to, the proper inspection, repair, or replacement of the induction air box seal as specified. Failure to comply with these requirements can result in significant risks to flight safety, including potential engine failure or other critical malfunctions. Consequently, it is imperative that all maintenance and operational activities are conducted in strict accordance with the directive to avoid any safety compromises. Failure to comply with AD/CESSNA 185/25 may result in severe civil or criminal consequences. The Australian Civil Aviation Regulations stipulate penalties for non-compliance, which can include substantial fines and, in severe cases, criminal charges. The exact penalties are determined based on the severity of the breach and the potential risk posed to aviation safety. Operators found in breach of these regulations may face legal action, and the aircraft may be grounded until the required actions are completed and approved by CASA. Therefore, adherence to the directive is not only a regulatory requirement but also a critical safety measure to ensure the continued airworthiness of the affected aircraft.