As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT PACK LIGHT ILLUMINATED ON MASTER CAUTION RECALL. LIGHT EXTINGUISHES WHEN RESET. ACFT GROUNDED. NR 1 ZONE TEMP CONTROLLER SHOWS SEVERAL LT TCV FAULTS. REPLACED LT TCV (V139) REF AMM 21-61-21, BITE TEST OPS CK NORMAL REF AMM TASK 21-61-00, AND GROUND VERIFICATION TEST SUCCESSFUL.