As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF THE CREW REPORTED AN INTERMITTENT -STALL FAIL- WARNING MESSAGE. THE FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE OXYGEN SERVICING ACCESS DOOR OPEN. INSPECTION OF THE DOOR REVEALED NO DEFECTS. THE DOOR WAS PROPERLY SECURED. THE STALL PROTECTION SYSTEM OPERATIONALLY CHECKED GOOD. THE AIRCRAFT WAS RELEASED FOR SERVICE.