As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON RECALL - AMBER CONT CAB ZONE TEMP LIGHT ILLUMINATES EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 21-62 TASK 801. RIGHT PACK/ZONE TEMP CONTROLLER HAD "FLT DECK TRIM VALVE" FAULT. FAULT CLEARED ON VERIFY.