As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALL THREE ZONE TEMP LIGHTS ON AT THE SAME TIME, NO CONTROL OF ALL THREE TEMPS. LIGHTS EXTINGUISH ON MASTER RECALL. ACFT GROUNDED. REMOVED AND REPLACED THE RT RAM AIR DOOR ACTUATOR IAW AMM 21-51-21. PERFORMED BONDING RESISTANCE CHECK. PERFORMED RT RAM AIR INLET ACTUATOR TEST, NO DEFECTS NOTED.