As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN PACK HOT CAUTION LIGHT ILLUMINATED DURING DESCENT. C/W EMERGENCY/ABNORMAL CHECKLIST. ALL CABIN DUCT TEMPS ZERO (0) INDICATIONS WERE WITHIN THE GREEN RANGE. MAINTENANCE INTERROGATED CDS, FOUND CAB TSOV STATUS MESSAGE IN FAULT HISTORY. REMOVED AND REPLACED CABIN TURBINE SHUTOFF VALVE IAW AMM 21-51-41-000-801 AND -400-801, IAW FIM 21-60-00-810-823. OPS CHECK AND LEAK CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.