What was found
UPPER ECAM F-CTL SLATS LOCKED WING TIP BRK ON DURING 4 MILE FINAL. FPPU FAULTY (FEEDBACK POSITION PICK-OFF UNIT). RANG ALL ASSOCIATED WIRING FROM SFCC1 & SFCC2 TO FPPU 28CV. SWAPPED CONNECTORS ON FPPU 28CV AND IPPU 4CN, WAS ABLE TO RESET WTB AND RUN FLAPS-SLATS, HOWEVER FLAP INDICATION SHOWED IN POSITION AT ANY SETTING AND FLAPS CONTINUED TO RUN INDICATING FPPU WAS FAULTY. REPLACED FPPU 28CV, ALL OPS NORMAL AFTER, PERFORMED CAT 3 TEST.