Special Conditions: Airbus Industrie, Model A340-500/-600 Airplanes; Ground \nLoads and Conditions for Center Landing Gear With Four Wheels and Braking \nCapability

These special conditions are issued for the Airbus Industrie Model A340-500 and -600 airplanes. These airplanes will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. This design feature is associated with the landing gear, in the form of a four-wheeled center landing gear, installed under the fuselage, which functions like a main landing gear in all respects, including the ability to brake. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These proposed special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.