What was found
BUS AC AND DC GROUND OFF LEVEL ONE ALERT. WITH MTC APPR RESET POPPED C/B C-14 UPPER MAINT PANEL POPPED AGAIN IN 4 MINUTES. DIVERTED TO PDX. REPLACED RCCB B1-1347 AGSTR CONTROL EPCU BITE THRU CFDS NO FAULTS R-T-S- NML.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BUS AC AND DC GROUND OFF LEVEL ONE ALERT. WITH MTC APPR RESET POPPED C/B C-14 UPPER MAINT PANEL POPPED AGAIN IN 4 MINUTES. DIVERTED TO PDX. REPLACED RCCB B1-1347 AGSTR CONTROL EPCU BITE THRU CFDS NO FAULTS R-T-S- NML.