As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD - INFLIGHT LGA-DFW. CREW REPORTED RIGHT ENGINE GENERATOR FAILED AND AC CROSSTIE LOCKOUT LIGHT ILLUMINATED. UNABLE TO START APU UNTIL DESCENT TO LOWER ALTITUDE. ABLE TO POWER RIGHT BUS AFTER APU WAS RUNNING. EMERGENCY DECLARED FLIGHT DIVERTED IAD LANDED WITHOUT INCIDENT. DEFERRED RIGHT ENGINE GEN INOP PER MEL 24-1A AUTH 2-581DC-B. REPLACED RIGHT ENGINE GENERATOR AT DFW ON 02/08/2011. SYSTEM GROUND CHECK NORMAL OPERATION.