As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLT 3993 - PILOT REPORTED THAT AFTER TAKEOFF, THE GEAR 'A' SYSTEM RED POSITION INDICATION LIGHT REMAINED ON AFTER GEAR RETRACTION. THE AIRCRAFT LANDED AT IAH WITHOUT FURTHER INCIDENT, WHERE MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR CONTROL HANDLE. THE AIRCRAFT OPERATIONALLY CHECKED GOOD AND WAS RETURNED TO SERVICE. (M)