What was found
FLT 20 - SMF - FLAPS APPEAR TO BE BINDING/CHATTERING BETWEEN FLAP SETTING 20 AND 30. BINDING OCCURS AT THE END OF TRAVEL FOR EACH SETTING AT 20/25/30. EVALUATION FLIGHT REQUIRED. REMOVED AND REPLACED TRAILING EDGE FLAP POWER DRIVE UNIT HYDRAULIC MOTOR CONDITION. REMOVED AND REPLACED TRAILING FLAP PDU CONTROL VALVE MODULE AND BYPASS VALVE MM 27-51-32. LEAK CHECK OF CONTROL VALVE MODULE GOOD. PERFORMED FLAP AND SLAT PRIMARY DRIVE AND POSITION INDICATION SYSTEM TEST PER MM SUBTASK 27-51-00-865-111. CHECKS OK AT THIS TIME. NO OTHER DISCREPANCIES NOTED. EVALUATION FLIGHT CHECK GOOD. FLAP OPERATION NORMAL. (M)