As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON LANDING CHECKLIST RECALL, THE LT PACK LIGHT ILLUMINATED. EXTINGUISHED ON MASTER CAUTION RESET. ACFT GROUNDED. BITE CHECK OF LT ZONE TEMP CONTROLLER LOGGED RAM AIR ACTUATOR FAULT. REPLACED LT RAM AIR INLET ACTUATOR. INSTALLATION TEST PASSES. ZONE TEMP CONTROLLER BITE TEST PASSES REF AMM 21-51-21/401.