AD/SM-205/17A - Aileron and Flap Control Cables - Inspection and Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, serve as a cornerstone in ensuring the safety and efficiency of civil aviation within Australia. Among these regulations, Part 39 specifically addresses airworthiness directives, which are crucial for maintaining the safety standards of aircraft. The legislation was introduced to address gaps in aircraft maintenance and operational safety, ensuring that all civil aviation activities comply with stringent safety requirements. One such directive, AD/SM-205/17A, pertains to SIAI Marchetti S205 and S208 series aeroplanes, focusing on the inspection and modification of aileron and flap control cables. This directive mandates compliance within 50 hours of time in service after a specified date, ensuring that these critical components are regularly inspected and maintained to prevent potential safety hazards. The policy objective behind such regulations is to enhance aviation safety by ensuring that all aircraft meet the necessary standards and are operated in a manner that minimises risk to passengers, crew, and the public.

Scope and Application

The Civil Aviation Regulations 1998, specifically under Part 39 - 105, apply to all models of SIAI Marchetti S205 and S208 series aeroplanes, as outlined in the Civil Aviation Safety Authority's Schedule of Airworthiness Directives AD/SM-205/17A. This regulation mandates that inspections and modifications to the aileron and flap control cables must be conducted within 50 hours of time in service following the date of 29 March 1974, and subsequently, these inspections and modifications must occur at intervals not exceeding 50 hours of time in service until the aeroplanes are modified. The regulation applies to all entities or individuals operating these aircraft models within the Commonwealth of Australia, extending its jurisdictional reach nationally. No specific exclusions or exemptions are stated in the provided text, but the application may be further detailed or restricted through subordinate instruments issued by the Civil Aviation Safety Authority.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, addresses the safety directives issued by the Civil Aviation Safety Authority (CASA) for certain aircraft models. One such directive, AD/SM-205/17A, pertains to the aileron and flap control cables of SIAI Marchetti S205 and S208 series aeroplanes (Section 3/74). This directive mandates that all models of these aircraft must comply with specific maintenance requirements to ensure the safety and airworthiness of the aircraft. According to the directive, compliance is required within 50 hours of time in service after 29 March 1974 and subsequently at intervals not exceeding 50 hours of time in service until modifications are made (Section 3/74). The applicable documents for compliance are either the SIAI Marchetti SB 205B31B or the RAI AD No. 73-176/S205-27, S205-6 Revision 2. The primary obligation under this directive is for the aircraft operators to ensure that the aileron and flap control cables are inspected and modified as necessary. This ensures that these critical components function correctly and safely, thus maintaining the aircraft's airworthiness. Failure to comply with the AD/SM-205/17A directive can result in serious safety issues, including potential in-flight failures of the aileron and flap control systems. The regulations do not specify particular penalties or consequences for non-compliance, but CASA has the authority to take enforcement actions against operators who do not adhere to these safety directives. Such actions could include fines, suspension of airworthiness certificates, or other regulatory measures aimed at ensuring compliance and maintaining the highest safety standards in civil aviation. The seriousness of these potential consequences underscores the importance of strict adherence to the requirements outlined in the directive.