As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5641, IAH TO LBB, AFTER TAKEOFF, THE FLIGHT CREW REPORTED A LOUD NOISE AND STALL FAIL CAUTION MESSAGE ON EICAS. THE FLIGHT RETURNED TO IAH AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND THE OXYGEN SERVICING DOOR OPEN. THE DOOR AND LATCH WERE INSPECTED AND FOUND TO BE SERVICEABLE. THE OXYGEN SERVICING DOOR WAS CLOSED AND THE AIRCRAFT WAS RETURNED TO SERVICE.