AD/AC-SNOW/5 - Fin Bracing Wire Fittings - Modification

Overview

The Civil Aviation Regulations 1998, amended by F2006B02218, were enacted to provide detailed rules and regulations for ensuring the safety of civil aviation in Australia. This legislative instrument addresses the need to maintain the airworthiness of aircraft, ensuring that all civil aircraft are operated in a manner that minimises risks to passengers, crew, and the public. The Australian Parliament enacted these regulations to provide a comprehensive framework that meets international standards and ensures the safety and efficiency of civil aviation operations within Australian airspace. The policy objective of these regulations, as outlined in the legislative instrument, is to mandate strict airworthiness directives, particularly focusing on the safety modifications for specific aircraft models. For instance, AD/AC-SNOW/5 pertains to the Ayres Thrush (Snow) Commander Series Aeroplanes, requiring modifications to the fin bracing wire fittings for models S-2D with serial numbers ranging from 1311D to 1410D. Compliance with these directives is mandated forthwith, underscoring the importance of immediate action to address potential safety issues and maintain the highest standards of aviation safety.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, governs the application of Airworthiness Directives (AD) for aircraft safety, including the AD/AC-SNOW/5 related to the Ayres Thrush (Snow) Commander Series Aeroplanes. This regulation applies to specific model S-2D S/Nos. 1311D to 1410D, ensuring compliance with the requirements set forth in the Aero Commander - Olney Division SL No. 48, Rev. A. The directive mandates immediate action to modify fin bracing wire fittings, thereby addressing potential safety issues. The scope of the regulation encompasses all relevant operators and entities within the Commonwealth of Australia, ensuring that the safety standards are uniformly upheld across the country. While the regulation primarily targets these specified aircraft, the broader Civil Aviation Regulations may extend to other aircraft and operations through subordinate instruments, reinforcing the overarching commitment to aviation safety.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, outlines the requirements for airworthiness directives, which are mandatory orders issued by the Civil Aviation Safety Authority (CASA) to ensure the continuing airworthiness of aircraft. Section 105.100 (2) specifies that any person must comply with an airworthiness directive issued under these regulations. The directive in focus here, AD/AC-SNOW/5, pertains to the modification of fin bracing wire fittings for Ayres Thrush (Snow) Commander Series Aeroplanes, specifically for model S-2D with serial numbers ranging from 1311D to 1410D. The main requirement of AD/AC-SNOW/5 (section 105.100(1)) mandates that the fin bracing wire fittings on the specified models be modified to ensure the aircraft's structural integrity and safety. This directive is applicable to aircraft within the specified serial number range and must be complied with immediately, as indicated by the term "forthwith". Compliance involves making the necessary modifications to the fin bracing wire fittings as detailed in the document Aero Commander - Olney Division SL No. 48, Rev. A. Entities governed by this directive, such as aircraft owners, operators, and maintenance service providers, have specific obligations under the Civil Aviation Regulations 1998. They must ensure that the required modifications are made without undue delay. This involves reviewing the aircraft’s serial number to confirm its applicability, accessing and understanding the modification instructions provided in the referenced document, and performing the necessary modifications as specified. Furthermore, they must keep records of the modifications made to demonstrate compliance with the directive. Failure to comply with an airworthiness directive can result in serious consequences. Under section 105.102 of the Civil Aviation Regulations 1998, non-compliance can lead to civil penalties. Specifically, individuals can be fined up to $50,000, while corporations may face fines of up to $250,000. Additionally, an aircraft found to be in violation of an airworthiness directive can be subject to enforcement actions, including grounding, which can have significant operational and financial implications for the operator. In severe cases, non-compliance can also lead to criminal charges, particularly if the failure to comply results in a significant risk of danger to air navigation or to the safety of any person on board an aircraft.