What was found
CAPTAIN REPORTED THAT DURING APPROACH, T/E FLAPS ASYMMETRY LEVER DID NOT COMMAND, FLIGHT CREW ACCOMPLISHED QRH 9.28 PROCEDURE, LANDING WITH SLATS DOWN AND FLAPS UP IAW SUCH QRH PROCEDURE. MX PERSONNEL PERFORMED FLAP CONTROL SURFACE VERIFICATION FOR CONDITION AND FIM 27-59-02-730, TASK 730 TO 801 PROCEDURE DETECTING FAILURE IN THE LT F4 SKEW SENSOR. F4 SKEW SENSOR WAS REPLACED IAW MM 27-59-01, TESTED CORRECT.