As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AHRS FAIL FLT 1. TEST FLIGHT EVAL FOUND AHRS DISC APPEARED MULTIPLE TIMES DURING A 0.2 HOVER FLIGHT. OTHER INDICATIONS WERE AS FOLLOWS: "Y","R", AND "P" IN AMBER ON BOTH PFDS, AND "ROLRAT DIS" ON LANE 2 SCROLL PAGE. ALL OTHER INDICATIONS APPEARED NORMAL WITH THE FLIGHT INSTRUMENTS DISPLAY OF INFORMATION. REMOVED AND REPLACED #1 AHRS IAW 34-22-00, 4-1. FUNCTIONAL TEST SUCCESSFULLY COMPLETED.