As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: RAISING THE GEAR AFTER TAKE OFF, CREW RECIEVED ALL RED UNLOCK AND ALL GREEN LOCK INDICATIONS SIMULTANEOUSLY/ AFTER CYCLING THE GEAR ALL WAS NORMAL/ UPON LANDING A MOMENTARILY LANDING GEAR SYSTEM DISAGREE ON ECAM. MAINTENANCE FOUND LOOSE CONNECTOR ON NOSE LANDING GEAR PROXIMITY SENSOR 25GA AND REPLACED THE PROXIMITY SENSOR PER AMM 32-31-73. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.