What was found
(CAN) THE AIR DATA AND ATTITUDE HEADING REFERENCE SYSTEM (ADAHRS) MODIFICATION FOR THE BELL 429 IN RELATION TO THE NORTHERN DOMESTIC AIRSPACE IS NOT FUNCTIONING PROPERLY. THE SYSTEM IS DRIFTING CONSTANTLY CREATING MULTIPLE COCKPIT ALARMS. THIS ALARM HAZARD CAN OVERLOAD THE PILOT AND ALSO REDUCE THE PILOT`S ATTENTION TO A REAL EMERGENCY BY BECOMING ACCUSTOMED TO FALSE ALARMS. IF THE SYSTEM IS NOT SET PROPERLY, IT WILL GIVE A FALSE REPRESENTATION OF ITS SURROUNDINGS RESULTING IN PILOT DISORIENTATION. IN ADDITION, WHEN REALIGNING THE SYSTEM, IT CAN INDUCE AN UNWANTED ROLL.