As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXTREMLY STRONG PACK ODOR AFTER T/O, LAV SMOKE ALARMS WENT OFF. ISOLATED SMELL TO NR 2 PACK, SECURED PACK. PROBLEM REOCCURED DURING DESCENT INTO SLC, EVEN WITH NR 2 PACK OFF. SMOKE ALARM IN AFT LAVS WENT OFF FUMES BAD ENOUGH TO FORCE F/A ON 02. RAN ENGS AND PACKS FOUND NR 3 PACK COMPRESSOR DISCHARGE SW C/P OFF, ACM FAILED. REPLACED NUMBER TWO AND THREE ACMS AND OVER TEMP SWITCH.