Special Conditions: McDonnell Douglas Model MD-10-10F and MD-10-30F Airplanes; Enhanced Flight Visibility System (EFVS)

These special conditions are issued for the McDonnell Douglas Model MD-10-10F and MD-10-30F airplanes. These airplanes, as modified by the Federal Express Corporation, will have an advanced enhanced flight visibility system (EFVS). The EFVS is a novel or unusual design feature which consists of a head up display (HUD) system modified to display forward-looking infrared (FLIR) imagery. 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.