As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN GEAR WAS RETRACTED IMMEDIATELY AFTER T/O, HEARD A LOUD BANG AND GEAR DID NOT RETRACT. ECAM DIRECTED TO CYCLE GEAR. WHEN GEAR LOWERED HAD A GEAR DOORS NOT CLSD ECAML FLT DX AND MOC ADVISED A RETURN TO AIRPORT. TRANSCRIBED FROML1470135. NLG DOOR UPLOCK ASSY REPLACED IAW MM 32-31-14. DOOR OPERATION CHECKS SERVICEABLE. REQS 2 BOLTS CHGD IAW P/P NR A320-32-20089.