As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AFTER TAKEOFF WITH GEAR RETRACTION, ECAM INDICATED NOSE LG DOORS NOT CLOSED. GEAR WAS RECYCLED AND THEY STILL WOULD NOT CLOSE.. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO ORD WHERE IT LANDED SAFELY WITHOUT FURTHER INCIDENT** SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)