As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SWF - FLT NR 0428 - EN ROUTE ORD-ALB - DURING CRUISE, EMERGENCY DC BUS FAIL INDICATION ON MULTI FUNCTION DISPLAY UNIT. AIRCRAFT DIVERTED TO SWF AND LANDED WITHOUT INCIDENT. REPLACED CR3 BLOCKING DIODE ON HEAT SINK. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)