As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT ILLUMINATED AFTER ENGINE START ON RECALL. BITE CHECK OF NR 2 PACK ZONE TEMP CONTROLLER REVEALED TCV FAULT-THIS PACK. VERIFIED THAT TCV, V141, IS INOP AND REPLACED TEMP CONTROL VALVE, REF MM 21-51-10. TCV INSTALLATION TEST NORMAL IAW MM 21-51-10.