As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENG START UPON MASTER CAUTION RECALL TEST, GOT A AMBER MASTER CAUTION LIGHT FOR FWD CAB ZONE TEMP WHICH CLEARED ON MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED PACK TEMP CONTROL BITE PROCEDURE PER FIM 21-62 TASK 801. FOUND ZONE TRIM VALVE CONTROLLER 2 FAULT.