AD/SC7/5 - TKS De-Icing Plumbing - Modification

Overview

The Civil Aviation Regulations 1998 were enacted to provide for the regulation of civil aviation in Australia, ensuring the safety and efficiency of the aviation industry. Part 39, which includes the Schedule of Airworthiness Directives, was introduced to address the need for specific and targeted regulations concerning the airworthiness of certain aircraft. The Civil Aviation Regulations are made by the Minister for Infrastructure and Transport under section 60 of the Civil Aviation Act 1988, with the primary policy objective of ensuring the highest possible standards of safety in civil aviation. The legislative instrument F2006B06805, specifically concerning the Shorts C7 (Skyvan) Series Aeroplanes, was introduced to mandate modifications to the TKS de-icing plumbing system for certain models to maintain compliance with airworthiness standards. This particular regulation aims to ensure that all affected aircraft meet necessary safety criteria within a specified timeframe.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertain to the Australian Civil Aviation Safety Authority's (CASA) schedule of airworthiness directives, including Short SC7 (Skyvan) Series Aeroplanes. AD/SC7/5 addresses modifications to the TKS de-icing plumbing system for all models of Series 3 fitted with this system. The directive mandates compliance within 100 hours of time in service after 31 May 1971, referencing Shorts Service Bulletin no. 30-50 for detailed instructions. This regulation applies to all operators of the specified aircraft models, ensuring the necessary modifications are implemented to maintain the airworthiness of the aircraft in compliance with safety standards. The scope is confined to the designated aircraft models and the specific modification to the de-icing plumbing system. The geographic reach of this directive is national, applying uniformly across Australia in accordance with the Civil Aviation Act 1988. There are no stated exclusions or exemptions in the regulation, meaning all affected aircraft must comply. The application of the regulation may be extended or further defined through subordinate instruments issued by CASA.

Key Provisions

The Civil Aviation Regulations 1998, under Part 39, Section 105, outlines the requirements for the airworthiness directives, specifically in relation to the Short SC7 (Skyvan) Series Aeroplanes. Section AD/SC7/5 addresses the TKS De-Icing Plumbing - Modification, applicable to all models of Series 3 aeroplanes fitted with TKS de-icing systems. The compliance requirement states that the specified modifications must be implemented within 100 hours of time in service after 31 May 1971, as documented in Shorts Service Bulletin No. 30-50. This regulation mandates that the owners and operators of the affected aircraft must ensure that the TKS de-icing plumbing modifications are carried out according to the specified guidelines. The modifications are aimed at enhancing the safety and operational effectiveness of the aircraft by ensuring the de-icing systems function correctly and reliably, which is crucial for safe flight operations, particularly in conditions where icing is a risk. Non-compliance with the airworthiness directives can lead to severe consequences. Under Section 91.9A of the Civil Aviation Act 1988, failure to adhere to the specified modifications can result in the aircraft being considered unairworthy. This could lead to enforcement actions, such as the issuance of a Notice of Proposed Civil Penalty or prosecution, which may result in significant fines and potential imprisonment for individuals responsible for the non-compliance. The specific penalties are determined based on the severity of the breach and the impact on aviation safety. Furthermore, operators who fail to ensure compliance with the airworthiness directives may face operational restrictions or the grounding of their aircraft by the Civil Aviation Safety Authority (CASA). This can have substantial financial implications, including potential loss of revenue from grounded aircraft and increased costs related to rectifying non-compliance issues. The penalties underscore the importance of adhering to these directives to maintain high safety standards in aviation.