What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) At cruise altitude the autopilot tripped off, the air driven generator deployed, and the EFIS screens went blank for a moment, after the EFIS recovered the eicas screen displayed a message that the number one generator was off-line and the bus had autotransferred, along with related messages. After this smoke was observed in the flight deck in front of the captain. Both pilots donned O-2 masks and accomplished the qrh checklist. An emergency was declared and the flight diverted to Raleigh-Durham airport, the smoke dissipated, the pilots accomplished the qrh for electrical problems during descent and the airplane landed without incident.
As the FAA filed it
(-23) AT CRUISE ALTITUDE THE AUTOPILOT TRIPPED OFF, THE AIR DRIVEN GENERATOR DEPLOYED, AND THE EFIS SCREENS WENT BLANK FOR A MOMENT, AFTER THE EFIS RECOVERED THE EICAS SCREEN DISPLAYED A MESSAGE THAT THE NUMBER ONE GENERATOR WAS OFF-LINE AND THE BUS HAD AUTOTRANSFERRED, ALONG WITH RELATED MESSAGES. AFTER THIS SMOKE WAS OBSERVED IN THE FLIGHT DECK IN FRONT OF THE CAPTAIN. BOTH PILOTS DONNED O-2 MASKS AND ACCOMPLISHED THE QRH CHECKLIST. AN EMERGENCY WAS DECLARED AND THE FLIGHT DIVERTED TO RALEIGH-DURHAM AIRPORT, THE SMOKE DISSIPATED, THE PILOTS ACCOMPLISHED THE QRH FOR ELECTRICAL PROBLEMS DURING DESCENT AND THE AIRPLANE LANDED WITHOUT INCIDENT.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.