As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT COMES ON WITH MASTER CAUTION RECALL, LIGHT GOES OUT WITH MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED A PACK-ZONE TEMP CONTROLLER BITE TEST IAW AMM 21-61-00, RESET SYSTEM, SYSTEM OP CHECKED GOOD, NO HISTORY LAST 60 DAYS.