As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE AT 14,000 FT NOTICED NR 1 ITT RUNNING 100 DEGREES ABOVE NR 2. BEGAN NOTICING ODOR. ABOUT 2 MINUTES "CABIN PACK HOT" CAUTION ILLUMINATED. COMPLIED WITH CHECKLIST AND SHUTDOWN CABIN PACK. DECENDING THROUGH 7,000 FT. ALL CABIN PRESSURE WAS LOST. DIFFERENTIAL WENT ZERO AT 7,000. ECS ECU AND NR 1 BLEED STAGE PRESSURE SWITCH WERE REPLACED. ALL OPS CHECKS WERE COMPLETED AND CHECKED GOOD. RETURNED TO SERVICE.