As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NR 2 ENGINE BLEED TRIPPED IN FLIGHT, DIVERTED TO HNL. PERFORMED ENGINE GROUND RUN-UP TO VERIFY BLEED TRIP AND OPS CHECK, RUN-UP OK. REMOVED AND REPLACED THE NR 2 ENGINE BLEED AIR REGULATOR FOR TROUBLESHOOTING IAW AMM 36-11-03-4, LEAK AND OPS CHECK OK. REMOVED AND REPLACED 390 TEMP SENSOR (PRE-COOLER CONTROL VALVE SENSOR) IAW AMM 36-12-03-04, LEAK AND OPS CHECK OK. AIRCRAFT RETURNED TO SERVICE.