Fly-by-wire flight control system; Aircraft and space vehicles in general (ICS 49.020), On-board equipment and instruments (ICS 49.090)
Special Conditions: Bell Textron Inc., Model 525 Helicopter; Fly-By-Wire (FBW) Flight Control System (FCS) (3 page(s), in English)
Notice of proposed special conditions - This action proposes special conditions for the Bell Textron Inc. (Bell) Model 525 helicopter. This helicopter will have a novel or unusual design feature associated with a fly-by-wire (FBW) flight control system (FCS). 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.