As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PACK OVHT TRIP RESET 1 TIME CAME BACK ON ABOUT 20 MINUTES LATER. BITE CTC IAW FIM 21-51-00 FAULTED SENSOR CODE 21-51217 REPLACED TS553 SENSOR- SAFTEY WIRED SAME- RAN APCK FOR 20 MIN OPS CHECK GOOD. ETOPS CATEGORY (B): DIVERSION OR TURNBACK.