As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DESCENDING THRU 10,000 FT CONT CAB ZONE TEMP LIGHT ILLUMINATED- FOLLOWED QRH LITE WENT OUT AFTER LANDING. GROUNDED - YES. PERFORMED BITE AND FOUND FLT DECK TRIM VALVE FAIL REF B737-800 AMM 21-61-00-700-806-002. REMOVED AND REPLACED FLT DECK TRIM VALVE REF AMM 21-61-21-400-801 AND AMM 21-61-21-000-801. OPS AND LEAK CK OK.