As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ZONE TEMP LIGHT ILLUMINATES ON RECALL GOES OUT ON RESET TEMP CONTROL IS NORMAL. GROUNDED - YES. ACCOMPLISHED PACK/ZONE BITE TEST. FLIGHT DECK TRIM VALVE LOGGED FAULT. RESET FAULT, RAN BITE TEST TWICE. OPS CHECK NORMAL PER B737-800 AMM 21-61-00-700-806-002.