As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS/DEN - FLT NR 749 - WHEN GEAR HANDLE WAS RAISED ON TAKEOFF, THE RED LIGHT ILLUMINATED AND REMAINED ON. GEAR WAS RECYCLED WITH NO HELP. AIRCRAFT RETURNED TO LAS LANDING UNEVENTFULLY. MAINTENANCE FOUND S846 NOSE LOCK SENSOR BAD. REMOVED ADN REPLACED SENSOR PER BMM 32-60-00. AIRCRAFT RETURNED TO SERVICE. (M)