As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, RECEIVED GEAR DISAGREE EICAS ALERT. FOLLOWED CHECKLIST & PERFORMANCE TABLES & CONTINUED. DURING APPROACH WE EXTENDED GEAR EARLY AT APPROX 210 KTS. AT 170 KTS WE HEARD A CLUNK IN NOSE GEAR AREA. LANDING UNEVENTFUL, SWUNG GEAR & GOT LG MONITOR STATUS MSG. FOUND STATUS MSG RELATED TO SYS 1 NLG LOCK SENSOR. R & R SYS 1 & 2 NLG LOCK SENSOR S10065 & S10078. OPERATIONS CHECKED OK.