What was found
(CAN) FLAP ACTUATOR MAKING NOISE DURING FLAP OPERATION. PRIMARY FLAP MOTOR LOADING THROUGH PARTIAL TRAVEL OF FLAPS. SECONARDY FLAP SYSTEM WOULD NOT EXTEND OR RETRACED FLAPS BUT MOTOR STILL RUNNING. FLAP ACTUATOR/MOTOR ASSEMBLY REMOVED AND UPON INSPECTION FOUND DRIVE GEARS WORN AND SECONARDARY MOTOR DRIVE SHEARED. SUPECT WORN GEARS BINDING AND LOAD STRESS ON FLAP MOTORS. NEW FLAP MOTOR ASSEMBLY INSTALLED, TESTED SERVICABLE AND AIRCRAFT RETURNED TO SERVICE.