As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5458 - RECEIVED GEAR DISAGREE MESSAGE AND NOSE DOOR WARNING. NOSE GEAR DID NOT INDICATE UP. COMPLIED WITH QRH. RETURNED TO ATL, LANDED WITHOUT INCIDENT. FOUND NLG OLEO SENSOR BRACKET BENT, INCREASING SENSOR GAP BEYOND LIMIT. REWORKED BRACKET. NO FURTHER DEFECTS.