As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERSION/DECLARED EMERGENCY LT - BLEED TRIP OFF RESET PER QRH. LT - BLEED TRIP OFF FOLLOWED BY RT - PACK TRIP OFF RESET IAW QRH. THEN LT - BLEED TRIP OFF AND RT-PACK TRIP OFF STARTED EMERGENCY DESCENT IAW QRH. R & R NR 1 ENG PRECOOLER CONTROL VALVE IAW AMM.