As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT DECK PRIMARY TEMP CONTROLLER HAS ZONE TEMP LIGHT ON RECALL. LIGHT GOES OUT WITH M/C RESET. GROUNDED - YES. PERFORMED B737-900 FIM 21-62 TASK 801 ON #2 CNTLR, BIT AND LAST FLT SHOWS FLT DECK TRIM VALVE FAULT. PERFORMED VERIFY TEST REF FIM 21-62 TASK 832, INITIAL EVALUATION TEST GOOD. GROUND VERIFICATION TEST GOOD.