As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHV - FLT 3639 - PILOT REPORTED SMOKE IN THE COCKPIT IN CONJUNCTION WITH A NR 2 ACW FAULT INDICATION. THE AIRCRAFT LANDED AT SHV WITHOUT INCIDENT, WHERE MAINTENANCE REMOVED AND REPLACED THE NR 2 ACW GENERATOR CONTROL UNIT. THE AIRCRAFT OPERATIONALLY CHECKED GOOD AND THEN WAS RETURNED TO SERVICE. (M)