As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4038 THE CREW NOTICED A SMOKE ODOR OF AN UNIDENTIFIED NATURE IN THE FORWARD CABIN IN THE AREA OF THE MAIN CABIN ENTRY DOOR. THE CAPTAIN ELECTED TO RETURN TO ORD. THE AIRCRAFT WAS REMOVED FROM SERVICE. FOUND ODOR TO BE COMING FROM FLIGHT ATTENDANT FLASHLIGHT. REMOVED AND REPLACED THE FLASHLIGHT ASSEMBLY IAW AMM 33-50-16 THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.