AD/AMD 50/6 - Flight Control Area at Frame 25

Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), were enacted to ensure the safety and efficiency of civil aviation within Australia. One specific regulation is found in Part 39 - 105 of the Civil Aviation Regulations, which addresses airworthiness directives for particular aircraft models, such as the Falcon 50 and 900 Series Aeroplanes. This directive, AD/AMD 50/6, was introduced to address the potential safety issue of water accumulation in the underfloor area at frame 25 of the Falcon 900 aircraft. This accumulation could lead to the jamming of engine and flight controls during extreme low temperatures, thereby posing a significant risk to flight safety. The directive requires actions to be taken in accordance with the technical requirements set by the French Civil Aviation Authority's AD 92-067-010(B), and includes specific checks and modifications to the water system to mitigate this risk. The policy objective is to enhance the safety of civil aviation by ensuring that aircraft are maintained to a standard that prevents such hazards from compromising flight operations.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandates the Civil Aviation Safety Authority’s Airworthiness Directives for the Falcon 50 and 900 series aeroplanes, focusing on the flight control area at Frame 25. This directive applies to specific models of the Falcon 900, both those with an FJC-type interior and those with a Dassault Aviation-type interior. The requirement necessitates compliance with the technical stipulations outlined in DGAC AD 92-067-010(B), which aims to address potential water accumulation in the underfloor area at Frame 25 that could lead to jamming of engine and flight controls during extreme low temperature conditions. Reference to Dassault Aviation Service Bulletins F900-113 and F900-115 provides additional guidance on necessary actions and checks. Compliance is to be achieved as per the Requirement Document, which has a revised effective date of 19 August 1993, ensuring that the specified modifications and checks are implemented to enhance underfloor heating and mitigate risks associated with water accumulation. This directive is an integral part of ensuring the safety and airworthiness of the mentioned aircraft models within the Australian aviation regulatory framework.

Key Provisions

The key operative sections of the Civil Aviation Regulations 1998, Part 39 - 105, Schedule of Airworthiness Directives, specifically AD/AMD 50/6, relate to the Falcon 50 and 900 series aeroplanes (s1). This directive mandates actions concerning the flight control area at frame 25, focusing on models F900 with either a FJC-type interior or a DASSAULT AVIATION-type interior. The directive demands compliance with the technical requirements outlined in DGAC AD 92-067-010(B) (s2). Dassault Aviation Service Bulletins F900-113 and F900-115 are referenced for additional guidance, and compliance must be achieved as specified in the Requirement Document, with a revised effective date of 19 August 1993 (s3). The obligations imposed by the Act on the parties or entities it governs include ensuring that any water accumulation in the underfloor area at frame 25 is managed to prevent potential jamming of engine and flight controls under extreme low-temperature conditions. This involves performing necessary actions and checks on the water system and implementing a modification designed to improve underfloor heating (s4). These requirements are detailed in the specified documents and must be adhered to strictly to maintain the airworthiness of the aircraft (s5). Failure to comply with the provisions of the Civil Aviation Regulations 1998 and the specific Airworthiness Directives may result in civil or criminal consequences. The nature and severity of these consequences depend on the extent of non-compliance and the impact on aviation safety. The Civil Aviation Safety Authority (CASA) has the authority to impose penalties, which can include fines and other sanctions. In cases where non-compliance poses a significant risk to safety, criminal charges may be brought against individuals or entities responsible, potentially leading to imprisonment (s6). The exact penalties are determined based on the specific breach and the discretion of the relevant authorities.