As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB ZONE TEMP ON RECALL AFTER START. GROUNDED - YES. C/W B737-900 FIM 21-62 TASK 801 & 21-62 TASK 833. PACK TEMP CONTROL BITE TEST ON ZONE TEMP CONTROL #2 - FLT DECK TRIM VALVE RED LT ILLUMINATED. FLT DECK TRIM VALVE RED LT CLEARED ON RESET. NO FURTHER ACTION REQUIRED. SYSTEM OPS CHECKS OK.