As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURN BACK DUE TO GEAR LIGHT AND GEAR DISAGREE EICAS MESSAGE. RAN CHECKLIST. NO RELIEF. RETURNED TO DEPARTURE. NO EMERGENCY. R & R NLG LOCK ACTUATOR IAW AMM 32-34-004-002 AND 009. C/W NLG LOCK ACT OPS AND LEAK CK IAW AMM 32-34-00/501.