As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER BLOCKOUT AND ENGINE START RECALL MASTER CAUTION SHOWED LEFT AIR CONDITIOING PACK AMBER PUSH RESET OF MASTER CAUTION AND EXTINGUISHED. TEMP CONTROLLER HAS NR 1 TEMP CONTROL VALVE FAULT. REPLACED NR 1 SYSTEM TEMPERATURE CONTROL VALVE IAW AMM 21 51 10 400 801 GROUND FUNCTIONAL TEST GOOD IAW AMM 21 51 10 400 801 PARA E NR 1 NR 6.