As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6247 - IAD-BGM - DURING CRUISE, MADE AN UNSCHEDULED LANDING AT IAD DUE TO THE RED INVERTER WARNING LIGHT ILLUMINATED. AIRCRAFT RETURNED TO THE GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND RESET 28V MAIN DC BUS AND RESECURED RELAY 2XB7, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)