As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON TAKEOFF WHEN GEAR WAS RETRACTED NOSE GEAR DID NOT UPLOCK AND ALL GEARS DOOR REMAINED OPEN RECYCLE PER ECAM AND ALL GEAR UPLOCKED AND DOORS CLOSED. REPLACED NOSE LANDING GEAR UPLOCK ACTUATOR AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER AMM 32-31-21.