Special Conditions: Boeing Model 777-200, -300, and -300ER Series Airplanes; Aircraft Electronic System Security Protection From Unauthorized Internal Access

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These special conditions are issued for the Boeing Model 777- 200, -300, and -300ER series airplanes. These airplanes, as modified by the Boeing Company, will have novel or unusual design features associated with the architecture and connectivity of the passenger service computer network systems to the airplane critical systems and data networks. This onboard network system will be composed of a network file server, a network extension device, and additional interfaces configured by customer option. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These 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.