What was found
ETOPS SIGNIFICANT ITEM, ECAM PRIM 1 FAULT, PRIM 1 SWAPPED TO PRIM 3 POSITION. OK TO CONTINUE IAW MEL 27-93-1B, DMI 50574. NO HISTORY 14 LEGS, FAULT TRANSFERRED FROM 1 TO 3. PRIM IN POSITION 3 IS FAULTY. PERFORMED BITE TEST OF EFCS. CHECK OK IAW AMM 27-96-00. OK TO CONTINUE. REMOVED FCPC 3 COMPUTER AND REPLACED WITH FCPC 1 COMPUTER. PERFORMED OPS TEST & PERFORMED AUTO LAND TEST, OPS CHK.