As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5979 - BTR TO IAH. THE FLIGHT CREW REPORTED A LANDING GEAR AIR/GROUND FAIL MESSAGE JUST AFTER TAKEOFF AND THAT THE LANDING GEAR WOULD NOT RETRACT. THE AIRCRAFT RETURNED TO BTR AND LANDED WITHOUT INCIDENT. MAINTENANCE PERFORMED A GENERAL VISUAL INSPECTION OF THE WOW PROXIMITY SWITCHES AND DOWNLOADED THE CMC FOR FAULT MESSAGES. THE SYSTEM RESET WITH NO FURTHER FAULTS NOTED. THE AIRCRAFT WAS TEST FLOWN WITH NO DEFECTS NOTED.