Special Conditions: Boeing Model 737-600, -700, -700C, -800, -900, and -900ER Series Airplanes; Rechargeable Lithium-Ion Battery Installations

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These special conditions are issued for the Boeing Model 737- 600, -700, -700C, -800, -900, and -900ER series airplanes. These airplanes, as modified by Electronic Cable Specialists, Inc., will have a novel or unusual design feature associated with the installation of a dual Class 3 electronic flight bag (EFB) system that contains rechargeable lithium-ion batteries. 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.