What was found
AIRCRAFT WAS GROUNDED: UPON LANDING GEAR RETRACTION RECEIVED A NOSE LANDING GEAR SHOCK ABSORBER FAULT. FAULT CLEARED WHILE READING ECAM ACTIONS. THEN LANDING GEAR DOOR NOT CLOSED. FOLLOWED ECAM RECYCLED GEAR HANDLE, GEAR RETRACTED NORMALLY. THE FAULT REOCCURED DURING LANDING GEAR EXTENSION, THE FLIGHT CREW REPORTED HEARING A LOUD BANG WHEN THE GEAR EXTENDED. THE AIRCRAFT LANDED AND TAXIED TO THE GATE WHERE MAINTENANCE FOUND THE NOSE LANDING GEAR STRUT COLLAPSED AND LEAKING FLUID ON THE GROUND. MAINTENANCE REPLACED THE NOSE LANDING GEAR SHOCK ABSORBER PER AMM 32-21-13. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES NOTED.