As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE AND SMOKE ODOR IN FWD CABIN AND FLT DECK WITH VIBRATION IN FLOOR MID CABIN. LT PACK AIR CYCLE MACHINE BLADES FOUND TO BE DAMAGED UPON INSPECTION. ACM WAS SEIZED. THE ACM AND DIFFUSER HOUSING WERE REPLACED. HAMILTON REPORTED ROTOR FAN BLADES BROKEN AT ROOT. ROOT CAUSE IS PENDING.