What was found
FLIGHT HAD NR 1 "AHRS FAIL" INDICATION DURING DECENT. CREW MADE REVERSION SOURCE CORRECTION AND DISCUSSED POSSABILITY OF DIVERT DUE TO LIMITED OR UNKNOWN MX CAPABILITIES. DURING DISCUSSIONS, "AHRS FAIL" CORRECTED ITSELF AND SYS FUNCTIONED NORMAL. CREW MADE SEVERAL TURNS TO VERIFY AHRS SYS WAS FUNCTIONING NORMAL. PILOT ELECTED TO CONTINUE. ACFT FERRY FLIGHT NEXT DAY FOR SYSTEM F/T. SYS FUNCTIONED NORMAL. COULD NOT DUPLICATE PROBLEM. AHRS UNITS SWAPPED FROM LT TO RT AND RETURNED ACFT TO SERVICE.