As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB ZONE TEMP LIGHT COMES ON WITH RECALL. TEMP CONTROLLABLE IN MANUAL. TEMP RUNS AWAY IN AUTO. GROUNDED - YES. REMOVED AND REPLACED CONTROL CABIN TRIM MODULATING VALVE IAW AMM 21-61-21-000-801 AND 21-61-21-400-801, OPS CHECK GOOD IAW AMM 21-61-00-700-806-002. CLEARS MEL 21-21G.