As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT DEPARTED AND NOTICED SMOKE IN THE COCKPIT. AIRCRAFT RETURNED, UNEVENTFUL. COMPANY MAINTENANCE ENROUTE. THE SOURCE OF THE SMOKE SEEMED TO BE THE AFT CABIN. AIRCRAFT RETURNED BTL, UNEVENTFUL. COMPANY MAINTENANCE ENROUTE. MAINTENANCE DISCOVERED THAT THE CABIN BLOWER MOTOR HAD FAILED. THE BLOWER MOTOR WAS REPLACED AND TESTED. OPERATIONS TEST GOOD. [CLOSED]