As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOTS REPORT ZONE TEMP LIGHT, CLEARS ON RECALL. GROUNDED-YES. NR 2 CONTROLLER SHOWS FLT DECK TRIM VALVE FAULT. CHECKED AND RELEASED, PER MEL 21-21G PER B737-900 FIM 21-62 TASK 842 AND 832. INITIAL EVALUATION: PACK TEMP CONT BITE SHOWS NO FAULTS. OPERATED LEFT AIR CONDITIONING PACK. OPERATIONS TEST GOOD. CLEARS MEL 21-21G.