What was found
WHEN FLAPS WERE SELECTED TO 25 FOR LANDING (FLT 1700), FELT A POP AND AC ROLLED LEFT. FLAPS RETRACTED TO 15 AND SITUATION IMPROVED BUT LEFT ROLL PERSISTED. LANDED WITHOUT INCIDENT. LEFT FLAPS EXTENDED. MX INSPECTED FLAPS AT VARIOUS SETTINGS, RAN UP AND DOWN SEVERAL TIMES. NO DEFECTS NOTED, AMM REFERENCE 05-51-41. ON THE VERY NEXT FLIGHT (FLT 1205), THE PROBLEM REPEATED. CREW REPORTED THAT AS AIRCRAFT WAS CONFIGURED ON APPROACH FROM FLAPS 5 TO FLAPS 30, 4 TO 6 UNITS OF RIGHT AILERON CONTROL WAS NEEDED TO MAINTAIN WINGS LEVEL. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MX FOUND THE LEFT INBOARD CARRIAGE ON OUTBOARD FLAP ASSEMBLY FRACTURED. REMOVED AND REPLACED LEFT INBOARD CARRIAGE PER JOB CARD 03C30727034.