As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SAT - FLT 3285 - AHRS FAILURE IN FLIGHT. ACCOMPANIED WITH FLIGHT ATTENDANT REPORT OF EXTREMELY STRONG ORDER IN CABIN. DIVERTED TO SAT. NO FIRE NOTED. MAINTENANCE REMOVED AND REPLACED THE NR 2 AHRS UNIT. NOTED A VERY STRONG BURNING SMELL FROM REMOVED UNIT. OPERATIONAL CHECK WAS GOOD IAW SAAB MM 34-21-10 AND AIRCRAFT WAS RETURNED TO SERVICE. (M)