As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATED DURING MASTER CAUTION RECALL. EXTINGUISHES ON RESET. ACFT GROUNDED. PERFORMED BITE OF NR 1 PACK ZONE TEMP CONTROLLER, TEMP CONTROL VALVE FAULT PRESENT, R & R NR 1 TEMP CONTROL VALVE IAW AMM 21-51-10, TESTED GOOD.