Special Conditions: Eurocopter France Model EC-155 Helicopters, High-Intensity Radiated Fields

This special condition is issued for Eurocopter France (Eurocopter) Model EC-155 helicopters. These helicopters will have novel or unusual design features associated with the installation of electronic systems that perform critical functions. The applicable airworthiness regulations do not contain adequate or appropriate safety standards to protect systems that perform critical control functions or provide critical displays from the effects of high-intensity radiated fields (HIRF). This special condition contains the additional safety standards that the Administrator considers necessary to ensure that critical functions of systems will be maintained when exposed to HIRF.