What was found
DUCT TEMP ON CONDITION PAGE INDICATING 110, WITH TEMP IN COCKPIT INDICATING 74. REMOVED AND REPLACED THE ZONE CONTROLLER IAW AMM 21-63-34-00-801-A. ECS TESTED OK. OPS CHECKED OF ZONE CONTROL SYSTEM NORMAL. NO DEFECTS. OK FOR SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DUCT TEMP ON CONDITION PAGE INDICATING 110, WITH TEMP IN COCKPIT INDICATING 74. REMOVED AND REPLACED THE ZONE CONTROLLER IAW AMM 21-63-34-00-801-A. ECS TESTED OK. OPS CHECKED OF ZONE CONTROL SYSTEM NORMAL. NO DEFECTS. OK FOR SERVICE.