AD/AMD 10/4 Amdt 1 - Wing Anti-Icing Flexible Hoses - Replacement and Modification

Overview

The Civil Aviation Regulations 1998, specifically Part 39 - 105, was enacted to ensure the safety and airworthiness of civil aircraft, addressing issues such as the replacement and modification of wing anti-icing flexible hoses for the Falcon 10 series aeroplanes. This legislative instrument was introduced by the Civil Aviation Safety Authority, an entity under the Department of Infrastructure, Transport, Regional Development and Communications, with a policy objective of enhancing aviation safety by mitigating risks associated with icing conditions. The Civil Aviation Regulations 1998 provide a comprehensive framework to oversee and enforce safety standards, with amendments and directives being issued to address emerging safety concerns, such as the replacement of wing anti-icing hoses to prevent disconnections that could compromise flight safety.

Scope and Application

The Civil Aviation Regulations 1998, as amended, under the jurisdiction of the Civil Aviation Safety Authority, encompasses the operational safety standards for civil aviation within Australia, including the application of Airworthiness Directives (ADs) for specific aircraft types. One such directive is AD/AMD 10/4, which pertains to Falcon 10 Series Aeroplanes, specifically addressing wing anti-icing flexible hoses. This directive applies to all models of the Falcon 10 and requires the replacement and modification of the wing anti-icing flexible hoses in accordance with AMD Service Bulletin No. AMD-BA/F10/0239, which is referenced in the ATA F10/30/020. Additionally, the directive references DGAC AD83-155-18(B) and Falcon 10 Service News Flash 35 for further guidance. In the interim period before compliance with the requirements is achieved, a placard must be displayed in the cockpit bearing the words “Flight in Predicted Icing Conditions Prohibited”. Compliance deadlines are stipulated, with the requirement to adhere to the modifications before 31 January 1984, and for the placard to be displayed before further flight after 31 October 1983. This directive supersedes AD/AMD 10/16 due to ongoing issues with the disconnection of wing slat anti-icing hoses.

Key Provisions

The Civil Aviation Regulations 1998, specifically in Part 39 under section 105, mandate compliance with certain airworthiness directives for the Falcon 10 series aeroplanes. One such directive is AD/AMD 10/4 Amendment 1, which pertains to the wing anti-icing flexible hoses, requiring their replacement and modification (section 105.1). According to the directive, operators must adhere to the requirements outlined in AMD Service Bulletin No. AMD-BA/F10/0239 (ATA F10/30/020). Additionally, it is noted that the directive refers to DGAC AD83-15-5-18(B) and AMD Falcon 10 Service News Flash 35. In the event that compliance with the directive has not been achieved, a placard must be displayed in the cockpit stating "Flight in Predicted Icing Conditions Prohibited" in a location clearly visible to the flight crew (section 105.2). The obligations imposed by this directive are clear: operators must ensure that the wing anti-icing flexible hoses are replaced or modified as per the specified service bulletin. This involves following the technical instructions provided by the manufacturer to rectify any issues with the hoses to prevent disconnections, which have been a recurring problem (section 105.3). Additionally, until full compliance is achieved, the requirement to display the specified placard is mandatory to ensure safety during flights in conditions where icing might be a risk (section 105.4). Compliance deadlines are set, with the requirement for modification to be completed before 31 January 1984, and the placard to be displayed before further flight after 31 October 1983 (section 105.5). Failure to comply with the provisions of this directive may result in significant legal and safety consequences. The Civil Aviation Regulations 1998 outline that non-compliance can lead to civil penalties under the Civil Aviation Act 1988, which can include substantial fines. Additionally, operating an aircraft that does not meet the specified airworthiness standards may result in the aircraft being grounded, preventing it from taking flight until the necessary modifications are made and compliance is verified (section 105.6). The seriousness of the directive and the potential penalties underscore the importance of adhering to the specified timelines and requirements to maintain safety standards in aviation operations.