Special Conditions: Garmin International, Inc., Bell Textron Canada Limited Model 505 Helicopter, Visual Flight Rules Autopilot and Stability Augmentation System

These special conditions are issued for the Bell Textron Canada Limited (BTCL) Model 505 helicopter. This helicopter as modified by Garmin International, Inc. (Garmin), will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for helicopters. This design feature is associated with the installation of an autopilot and stability augmentation system (AP/SAS). 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.