As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2891 DURING CLIMBOUT OF LCH THE CREW REPORTED THAT THE LANDING GEAR DID NOT RETRACT. THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT WHERE MAINTENANCE REMOVED AND REPLACED THE NLG WEIGHT ON WHEELS PROXIMITY SWITCH, OPERATIONAL CHECKED GOOD, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.