What was found
ON JULY 24TH, 2010, THE ACFT WAS ENROUTE. AUTO PILOT KICKED OFF HARD. ALL CAPTIVE NAVIGATION SYS WERE LOST. ACFT WAS IMMEDIATELY DIVERTED. EMERGENCY WAS DECLARED, HOWEVER, NO EMERGENCY VEHICLES WERE CALLED FOR OR REQUIRED. SENT MX WITH REPLACEMENT AHRS (ATTITUDE & HEADING REFERENCE SYS) COMPUTER TO SBN. TECH R & R NR 1 AHRS COMPUTER, PERFORMED OPS CHECKS OF THE AHRS AND SYS PERFORMED SATISFACTORY. ACFT WAS RELEASED FOR FLIGHT AND REPOSITIONED ON THE MORNING OF JULY 25TH, 2010 WHERE IT WAS RETURNED TO SERVICE.