As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EICAS MESSAGE R PACK TEMP IN CRUISE FLIGHT FROM MKIP TO KMIA. RAN THE QRH, ENDED UP TURNING THE PACK OFF. ACCOMPLISHED FIM 21-51 TASK 876-877 ISOLATION PROCEDURES. CONFIRMED R PACK INLET ACTUATOR FAULTY. REMOVED AND REPLACED RAM AIR INLET ACTUATOR IAW AMM 21-53-00. PART UNKNOWN TO TRAX.