As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLT 1902 - THE AIRCRAFT HAD A BRIEF HISTORY OF THE NLG RED UNSAFE LIGHT REMAINING ILLUMINATED AFTER GEAR RETRACTION. THE LIGHT EXTINGUISHED WHEN GEAR WAS CYCLED. MAINTENANCE REMOVED AND REPLACED THE NLG LOCK AND POSITION SWITCHES PER MM 32-61-71, PAGE 401. A NOSE GEAR SWING WAS PERFORMED AND OPERATION CHECKED GOOD. (X)