As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLI TO LAS - CREW REPORTED NOSE GEAR RED LIGHT ILLUMINATED IN CRUISE. CHECKLIST PROCEDURE PERFORMED. LIGHT REMAINED ILLUMINATED. AIRCRAFT LANDED AS SCHEDULED LAS WITHOUT INCIDENT. MAINTENANCE SHIMMED THE SENSOR AND REMOVED AND REPLACED THE PROXIMITY SWITCH UNIT, PERFORMED MULTIPLE GEAR SWINGS, SYSTEM OPERATIONALLY CHECKED GOOD IAW MM 32-30-00, 32-60-04 AND 32-60-05. AIRCRAFT RETURNED TO SERVICE.