What was found
FLT JM 090 - DURING CLIMB, ECAM SHOWED ''FLIGHT CONTROL ALTERNATE LAW''. ECAM PROCEDURE PERFORMED, AIRCRAFT LANDED. AFTER LANDING, SEC NR 1 AND NR 3 AND ADIRU NR 1 AND NR 3 WERE INTERCHANGED, BUT NIL FIX. THE AIRCRAFT WAS DE-POWERED AND THE WARNING DISAPPEARED AFTER POWER-UP. AIRCRAFT WAS THEN DISPATCHED. (X)