As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK ILLUMINATED ON RECALL AND EXTINGUISHED ON RESET. ACFT GROUNDED. PERFORMED LT PACK ZONE TEMP CONTROLLER BITE AND FOUND LT RAM AIR INLET ACTUATOR FAILED. DURING TEST ACTUATOR MAKES GRINDING SOUNDS. IAW AMM 21-51-00, VERIFIED RAM AIR ACTUATOR EFFECTIVE FOR AIRCRAFT. REPLACED THE LT RAM AIR INLET ACTUATOR IAW AMM 21-51-21. ALL TESTED GOOD AFTER INSTALLATION IAW AMM.