As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NOSE GEAR DOOR LIGHT REMAINED ILLUMINATED AFTER GEAR RETRACTION DEPARTING IAH. GEAR RECYCLING DID NOT HELP. FUEL WAS DUMPED AND THE AIRCRAFT WAS RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. BOTH NOSE GEAR DOOR SWITCHES WERE REMOVED AND REPLACED IAW MM 32-62-11. OPERATION AND INDICATION CHECKED GOOD.