Special Conditions: British Aerospace, Public Limited Company, Model BAe \n125-1000A Airplane; High Altitude Operation, protection from the effects of \nLightning, and high energy Radio Frequency (RF).

These special conditions are issued for the British Aerospace, Public Limited Company (BAe), Model 125-1000A airplane. This airplane will have an unusually high operating altitude and a new Full Authority Digital Engine Control (FADEC) system which is a new technology electronic system that performs critical or essential functions. These are considered novel and unusual design features when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes in the Federal Aviation Regulations (FAR). The applicable airworthiness regulations do not contain adequate or appropriate safety standards for the protection of these systems from the effects of lightning or high energy radio frequency (RF), or operation at high altitudes. These special conditions contain the additional safety standards which the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.