As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 9516 -MISC/DE- THE "DC R BUS OFF" WARNING ILLUMINATED IN CRUISE FLIGHT, ALONG WITH MANY OTHER ASSOCIATED MESSAGES. THE FLIGHT CREW DECLARED AN EMERGENCY INTO MKE DUE TO LOSS OF RIGHT DC BUS, BUT LANDED UNEVENTFULLY. CORRECTIVE ACTION: MAINTENANCE FOUND THAT THE RIGHT PCDU CB3 CIRCUIT BREAKER HAD TRIPPED. THE RIGHT PCDU WAS REPLACED AND THE OPERATIONAL CHECK WAS GOOD. (LP #5997362)