As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB ZONE TEMP ILLUMINATED ON RECALL. GROUNDED - YES. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST REF B737-900 AMM 21-61-00. FOUND, ON CONT 2, FLT DECK TRIM VAVLE FAULT ON BIT AND PREV FLT. SYSTEM PASSED VERIFY TEST. FAULT IS INTERMITTENT, OK TO CONTINUE.