What was found
LIM - FLT 641 - DURING FLIGHT, WHILE AIRCRAFT TURNED, STANDBY HORIZON TILTED 22 DEGREES RIGHT BANK. AFTER TURN, THE INDICATOR DID NOT RECOVER, IT REMAINED IN THAT POSITION, AND NO FLAG APPEARED. AIRCRAFT RETURNED TO LIMA AIRPORT. AFTER LANDING, MAINTENANCE TECHNICIANS PERFORMED INSPECTION OF THE INDICATOR AND FOUND THE INDICATOR STUCK IN POSITION (BANKED). THE DEFECTIVE INDICATOR WAS REPLACED ACCORDING TO AMM TASK 34-22-24-000-00100. THE INDICATOR WAS TESTED ACCORDING TO AMM AIRCRAFT 34-22-24-400-00100/ 33-13-00-710-001 WITH SATISFACTORY RESULTS. AIRCRAFT RETURNED TO NORMAL OPERATION. (M)