AD/SM-260/9A - Propeller Governor Arm - Inspection and Replacement

Overview

The Civil Aviation Regulations 1998, which were enacted by the Parliament of the Commonwealth of Australia, provide a comprehensive framework for civil aviation operations within Australia, including the establishment of safety standards. The Civil Aviation Regulations were introduced to ensure that civil aviation activities are conducted in a manner that protects the safety of the public and property. The specific legislation in focus here, the SIAI Marchetti 260 Series Aeroplanes AD/SM-260/9A, addresses the need for inspection and replacement of the propeller governor arm on specified models to prevent potential safety issues that may arise from the use of non-compliant parts. The policy objective behind these regulations is to maintain the highest standards of airworthiness and safety within the aviation industry. The Civil Aviation Safety Authority, as the enforcing body, ensures that all aircraft operating within Australia comply with these stringent safety requirements, thereby safeguarding the interests of both the aviation community and the general public.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, address the safety directives concerning SIAI Marchetti 260 Series Aeroplanes, particularly models F260 and F260B, with specific serial numbers that have not been fitted with a particular steel propeller governor arm. These regulations apply to aircraft owners, operators, and maintenance personnel within the Commonwealth of Australia. The regulations mandate inspections and, if necessary, the replacement of the propeller governor arm for the specified aircraft models. The compliance requirement necessitates inspections within 25 hours of time in service following 31 January 1978 and then at intervals not exceeding 50 hours of time in service. Compliance with earlier versions of this directive is deemed sufficient for compliance with this particular directive. These regulations ensure that the specified aircraft maintain airworthiness standards as set by the Civil Aviation Safety Authority, thereby safeguarding aviation safety within Australia's jurisdiction.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, includes Airworthiness Directives (AD) that establish mandatory requirements for ensuring the safety of aircraft. Section AD/SM-260/9A addresses the inspection and replacement of the propeller governor arm for certain SIAI Marchetti 260 Series Aeroplanes. This section is particularly concerned with models F260 and F260B that have specific serial numbers (S/Nos.) and which have not been fitted with a particular steel propeller governor arm part number (P/N 260-13-274-01) in accordance with the requirement document (section 11/77). The directive applies to aircraft that meet these criteria and have not yet been updated with the specified part. The obligations imposed by this directive are clear and specific. Owners and operators of the affected SIAI Marchetti 260 Series Aeroplanes must ensure that the propeller governor arm is inspected within 25 hours of time in service after 31 January 1978. Once this initial inspection is completed, subsequent inspections must occur at intervals not exceeding 50 hours of time in service. The directive notes that compliance with previous issues of this directive satisfies compliance with the current issue, indicating a continuity of safety requirements. Failure to comply with the provisions of AD/SM-260/9A could result in significant consequences. Although the specific penalties or consequences for non-compliance are not detailed within the excerpt, general provisions of the Civil Aviation Regulations 1998 imply that non-compliance could lead to enforcement actions by the Civil Aviation Safety Authority (CASA). These actions could include fines, penalties, or other regulatory measures intended to ensure adherence to safety standards. Given the critical nature of the propeller governor arm in the operation of the aircraft, non-compliance could also potentially result in grounding of the aircraft, further operational disruptions, and heightened risk to flight safety.