What was found
AIRCRAFT WAS GROUNDED: AFTER TAKE OFF LANDING GEAR DOORS NOT CLOSED, ECAM. AFTER PROCEDURE LANDING GEAR DOORS CLOSED NORMALLY. AFTER ROTATION HAD STRONG VIBRATION COMING FROM NOSE GEAR UNTIL OVER 100' AGL WHEN WE RETURNED TO FIELD IN CLT, LOWERED THE GEAR AFTER GEAR EXTENSION FELT A LOUD BANG FROM NOSE GEAR AREA. NOTE: NO EMERGENCY WAS DECLARED. **ORIGINAL REPORT WAS AALA202205313347** MAINTENANCE REPLACED THE NOSE LANDING GEAR DOOR UPLOCK ASSEMBLY PER AMM 32-31-18 AND THE NOSE LANDING GEAR DOOR ACTUATOR PER AMM 32-31-16. (AALA202206015484) A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.