As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ZONE TEMP LIGHT CONTROL CABIN. EXTINGUISHES WITH MASTER CAUTION. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST IAW MM 21-61-00-700-806 HAD FLT DECK TRIM VALVE LIGHT ON DURING BITE AND PREV FLT TEST GOT GO LIGHT DURING VERIFY TEST RAN TEST SEVERAL TIMES MORE GOT GO LIGHTS DURING SYS TEST. SYS OP CHECKS GOOD.