What was found
EN ROUTE BLI-IAS AIRCRAFT DIVERTED INTO RNO DUE TO NR 2 AHRS FAILED, NR 2 VERTICAL GYRO FAILED, AND NR 1 FLIGHT MANAGEMENT ANNUNCIATOR AND FLIGHT DIRECTOR FAILED. MAINTENANCE REMOVED AND REPLACED THE NR 2 AHRS UNIT. OPERATIONAL TEST OF THE NAVIGATION SYSTEM CHECKED NORMAL, NO DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE. (M)