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 LIGHT CAME ON IN FLIGHT(EICAS), (PACK OFF LIGHT). FOLLOW QRH, OPERATED RIGHT PACK CONTROL SELECTOR IN STBY-N. BITE CHECK PACK CONTROL BOX FOUND TEMP CONTROL VALVE FAULT. REMOVED AND REPLACED PACK TEMP CONTROL VALVE IAW AMM 21-51-12, SECURITY AND LEAK CHECK OK.