As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURN BACK, GEAR WOULDN'T RETRACT HANDLE STOPPED IN OFF POS. ALL 3 GEAR SHOWED UNLK & DOWN W/ GEAR HANDLE IN OFF POSITION. FOLLOWED ECAM & PUT HANDLE DOWN. UNLK EXTINGUISHED & 3 GREEN DOWN & LOCKED REMAINED. ACCOMPLISHED OPERATIONAL CHECK WITH LANDING GEAR SIMULATOR TEST SET REF AMM 32-31-00/501. NO FAULTS NOTRD. ACCOMPLISHED FUNCTION TEST (GEAR SWING) OF LANDING GEAR SEVERAL TIMES USING SYSTEM 1 AND SYSTEM 2 REF AMM 32-31-00/501. LANDING GEAR OPERATION AND INDICATIONS NORMAL.