Beech 1900
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Troubleshooting
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Diverted; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Overcame Equipment Problem; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft; Human Factors
In cruise at FL 220 at approx. XA35;  both generators failed; immediately followed by a right bleed air warming light. Secured right bleed light per checklists. Right bleed warning light extinguished and elected to leave bleed secured. Then attempted reset of both generators and managed a reset of the left generator with normal load; frequency and volts. Shortly thereafter requested a divert to  nearest suitable airfield which was ZZZ. Made a normal approach and landing and taxied to maintenance hangar. No other issues to report.Warning and caution lights illuminated.
Captain reported a dual generator failure and a right engine bleed air valve failure in cruise. Captain secured the right bleed air valve and was able to reset one generator; subsequently electing to divert to the nearest suitable airport.