As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RAM DOOR FULL OPEN LIGHT ILLUMINATED DURING CRUISE. ACFT GROUNDED. PERFORMED FIM 21-51, TASK 803. CONFIRMED FAULT. NR 2 ZONE TEMP CONTROLLER SHOWS EXIT FAULT LIGHT. REMOVED AND REPLACED RAM AIR EXHAUST ACTUATOR IAW AMM 21-51-27. PERFORMED A BITE TEST IAW AMM 21-51-00, NO FAULTS FOUND.