As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HNL FLT 119 ENROUTE KOA-PHX FLIGHT DIVERTED TO HNL. APU AUTO SHUTDOWN BEFORE ETOPS MIDPOINT. CREW ELECTED TO DIVERT TO HNL. CREW STATES "FRM #49-11-XB-00, APU AUTO SHUTDOWN IN FLIGHT TWO ATTEMPTS (START) EICAS STATUS PAGE. APU OIL QTY ON DESCENT INTO HNL" MAINTENANCE STATES, "APU BITE INDICATED BAD ECU. REMOVED AND REPLACED ECU. (B)