What was found
(CAN) DURING APPROACH THE CREW SELECTED FLAPS 1 POSITION. THE L/E FLAPS LOWERED TO THE EXTEND POSITION, BUT THE TRAILING FLAPS DIDN`T MOVE. THE FLAPS WERE CYCLED SEVERAL TIMES WITH NO MOVEMENT. THE CREW THEN SELECTED ALTERNATE EXTENSION OF THE FLAPS WITH THE SAME RESULT. MAINTENANCE PERFORMED T/E FLAP SYS COMPLETE LUBRICATION CARRIED OUT IAW AMM 12-22-51. DETAILED VISUAL INSPECTION OF T/E FLAPS CARRIED OUT. CHECKED NORMAL T/E FLAP OPERATING TIME AND T/E ALTERNATE DRIVE OPERATION IAW AMM 27-51-01. TESTED SERVICEABLE. REPLACED FLAP POSITION INDICATOR IAW 27-58-41. TESTED SERVICEABLE. TEST FLIGHT CARRIED OUT SATISFACTORY.