As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MSO-ON FLIGHT 2340, CABIN PACK HOT CAUTION ILLUMINATED IN CRUISE FLIGHT. PERFORMED ABNORMAL CHECKLIST, LIGHT WENT OUT WHEN CABIN PACK WAS SELECTED OFF. MAINTENANCE COMPLIED WITH FIM TASK 21-60-00-810-801, NO FAULT FOUND. OPERATIONAL TEST ECS TEMP CONTROL. SYSTEM OPERATES NORMAL. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.