What was found
FLT 96 - HNL-KOA - WHILE CLIMBING THROUGH 6000 FEET, FLIGHT CREW REPORTED A PROBLEM WITH THE FIRST OFFICER'S ADI TO MAINTENANCE CONTROL. MAINTENANCE CONTROL ADVISED THE CREW TO RETURN TO HNL FOR REPAIRS. LANDING WAS ACCOMPLISHED WITH NO FURTHER PROBLEMS. MAINTENANCE REPLACED THE F/O'S ADI AND THE NR 2 VERTICAL GYRO. GROUND OPS CHECK OF THE ATTITUDE SYSTEM TESTED GOOD. AIRCRAFT RETURNED TO SERVICE. REF TSAA0134064. (M)