AD/M20/26 - Landing Gear Actuator - Replacement

Overview

The Civil Aviation Regulations 1998, under Part 39 - 105, establishes specific Airworthiness Directives to ensure the safety of civil aviation within Australia. One such directive, AD/M20/26, pertains to the Mooney M20 Series aeroplanes, specifically model M20J with serial numbers ranging from 240002 to 240041. This directive mandates the replacement of the landing gear actuator within 200 hours of time in service after 31 March 1977 to address identified safety concerns. Enacted by the Australian Government, this regulation aims to maintain high safety standards in civil aviation by ensuring that aircraft components are regularly inspected and maintained according to specified directives. The policy objective of the Civil Aviation Regulations 1998 is to safeguard the public by providing a robust regulatory framework that governs the operation and maintenance of aircraft within Australian airspace. By issuing specific Airworthiness Directives like AD/M20/26, the Civil Aviation Safety Authority (CASA) enforces necessary maintenance actions to mitigate risks associated with aircraft components, thereby enhancing overall aviation safety. This legislative instrument underscores the commitment of the Australian Government to ensure that all civil aviation activities adhere to stringent safety standards.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, under the authority of the Civil Aviation Safety Authority, applies to Mooney M20 Series Aeroplanes with serial numbers ranging from 240002 to 240041, focusing on model M20J. The regulation mandates the replacement of the landing gear actuator, as detailed in Mooney Service Bulletin No. M20-194, within 200 hours of time in service after 31 March 1977. This applies to all aircraft within the specified serial number range operating within the Australian airspace, ensuring compliance with safety standards set by the Civil Aviation Safety Authority. The scope of this legislation is limited to the specified Mooney M20J models and does not extend to other aircraft types or models outside the prescribed serial number range. The regulation does not explicitly mention any exclusions, exemptions, or thresholds beyond the stipulated compliance period and aircraft model. The application of this directive is enforced under the Civil Aviation Act 1988 and is subject to the regulatory oversight of the Civil Aviation Safety Authority.

Key Provisions

The Civil Aviation Regulations 1998 (Cth) under Part 39, specifically within the Airworthiness Directives (ADs) section, contain detailed requirements for the maintenance and operation of aircraft to ensure safety. Section 39-105 of the ADs, for instance, pertains to Mooney M20 Series Aeroplanes and mandates specific actions to be taken regarding the landing gear actuator (AD/M20/26). This directive applies to Mooney M20J models with serial numbers ranging from 240002 to 240041, necessitating compliance within 200 hours of time in service after 31 March 1977. The directive references Mooney Service Bulletin No. M20-194, which outlines the detailed procedures for the replacement of the landing gear actuator. Entities governed by this legislation must ensure that the specified Mooney M20J aeroplanes undergo the required maintenance as stipulated in the referenced service bulletin. This involves inspecting and replacing the landing gear actuator if necessary, adhering to the guidelines provided to maintain the airworthiness of the aircraft. Owners, operators, and maintenance personnel must be thoroughly familiar with the directive and ensure that all required actions are completed within the specified timeframe. Failure to comply with these requirements can lead to serious safety implications and potential enforcement actions. Breaching the provisions of the Airworthiness Directives can result in significant consequences. Under the Civil Aviation Act 1988 (Cth), non-compliance with an AD can lead to enforcement actions, including fines and potential criminal charges for individuals and corporations. The maximum penalty for contravening an AD can include substantial fines, reflecting the serious nature of ensuring aircraft safety. The Civil Aviation Safety Authority (CASA) has the authority to take regulatory action against entities that fail to comply with ADs, which can include imposing fines, requiring corrective action, and in severe cases, grounding the non-compliant aircraft until the necessary repairs or modifications are completed. These measures are in place to ensure that all aircraft meet the stringent safety standards set forth by Australian civil aviation regulations.