What was found
L-G NOT UPLOCKED ECAM MESSAGE. CREW COMMENTS: GEAR SLOW TO RETRACT ECAM. L-G GEAR NOT UPLOCKED. GEAR RETRACTED, ECAM CLEARED MAINT TEXT: PER CREW VERBAL, CAPTAIN STATED CONTROL TOWER CALLED AND VIEWED SLOW LANDING GEAR RETRACTION WITH ECAM MESSAGE. RETRIEVED POST FLIGHT REPORT SHOWED LAND GEAR DOORS NOT CLOSED AND LAND GEAR NOT UPLOCKED, LGCIU PHC-3 INTERFACE FAILURE. REPLACED LGCIU NR 2 PER MM AND REPLACED AND ADJUSTED SENSOR 25GA PER MM. PERFORMED EXTENSION AND RETRACTION TEST OF NOSE GEAR, ALL CHECK GOOD.