As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED A LANDING GEAR DOORS NOT CLOSED ECAM ON TAKEOFF. THE FLIGHT CREW COMPLIED WITH ECAM PROCEDURES AND RECYCLE OF THE LANDING GEAR WAS SUCCESSFUL. MAINTENANCE FOUND PROXIMITY SENSOR 24GA "U" DIMENSION OUT OF LIMITS AND ADJUSTED THE SENSOR PER AMM 32-31-73. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.