As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON MASTER RECALL CONT CAB ZONE TEMP CAUTION ILLUMINATES. RESET WITH MASTER CAUTION RESET. HAVE CONTROL OF TEMP. GROUNDED - YES. HAD LH TEMPERATURE CONTROL VALVE FAULT, REMOVED AND REPLACED LH TEMPERATURE CONTROL VALVE IAW B737-900 AMM 21-51-10-000-801 AND AMM 21-51-10-400-801, LEAK CHECK GOOD AND ETOPS GROUND FUNCTIONAL CHECK GOOD IAW AMM 21-61-00-700-806-002.