As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB OUT FROM IST, THE FLIGHT CREW NOTICED SMOKE AROMA IN THE COCKPIT. THE SOURCE OF THE SMOKE WAS DETERMINED TO BE THE CAPTAINS SEAT CONTROL UNIT ASSEMBLY. THE CAPTAINS SEAT CONTROL CIRCUIT BREAKERS WERE PULLED AND THE AIRCRAFT RETURNED TO IST. SEAT MOTOR HAD FAILED. UNIT WAS REMOVED AND REPLACED. (M)