As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB PRI ZONE TEMP LT. GROUNDED - YES. ACCOMPLISHED PACK/ZONE TEMP BITE TEST REF B737-900 AMM 21-61-00. BIT AND PREV FLT SHOW FLT DECK TRIM VALVE FAULT. COMPLETED VERIFY AND FAULT CLEARED. REACCOMPLISHED TEST WITH 3 GREEN PASS GO LIGHTS.