What was found
FLAPS FIALED TO EXTEND, SYS WAS MEL`D. MEL WAS CLEARED WHEN MX INSP SYS, OPS CHECKED, COULD NOT DUPLICATE DISCREPANCY. TROUBLESHOOTING REPLACED FLAP MOTOR, FLAP POSITION RELAY (K105). SHORTLY AFTER TAKEOFF CRWE REPORTED FLAPS WERE A T 17 DEGREES AND WOULD NOT RETRACT. AC CONTINUED WITH FLAPS AT 17. FLAPS WERE RAISED USING OVERRIDE SWITCH AND SYSTEM WAS PUT ON MEL. MX INSPECTED WIRING OF BOTH SAFETY SWITCHES AND REPLACED TERMINAL END ON RT SAFETY SWITCH. ALL OPS CHECK GOOD, NO FURTHER DEFECTS, RETURNED AC TO SERVICE. FLAPS STUCK AGAIN AT 17 DEGREES. MX REPLACED FLAP POSITION RELAY (K105). ALL OPS CHECKS WERE GOOD, NO FURTHER DEFECTS, RETURNED AC TO SERVICE. (K)