What was found
SDQ - FLT NR 1454 - AFTER TAKEOFF SDQ WHEN LANDING GEAR HANDLE RAISED, ECAM DISPLAYED MESSAGE INDICATING LANDING GEAR RETRACTION FAULT. PLACED LANDING GEAR HANDLE DOWN AND AIRCRAFT RETURNED TO SDQ, LANDED WITHOUT INCIDENT. REPLACED LEFT MAIN LANDING GEAR PITCH TRIM DAMPER. SYSTEM GROUND CHECKED NORMAL OPERATION. (W)