As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS - RT PACK TEMP / R PACK OFF LIGHT ILLUMINATED, FOLLOWED QRH, RESET LIGHTS (EICAS) CAME BACK ON AFTER APPROX 8 MINS. BITE CK RT PNEUMATIC CONTROLLER FOUND RT PACK TEMP SENSOR FAULT. REPLACED RT PACK TEMP SENSOR IAW AMM 21-51-08. OPS CK GOOD NO FAULTS.