As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED ON TAXI OUT WHILE STILL ON RAMP F/A REPORTS LIGHT SMOKE IN CABIN WITH FUMES AND SMOKE SMELL MAINTENANCE TROUBLESHOT USING AIRCRAFT MAINTENACE MANUALS AND REMOVED AND REPLACED THE RIGHT AIR CYCLE MACHINE. OPERATIONAL CHECKS WERE MADE USING THE AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT WAS RELEASED FOR SERVICE.