As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OMA - CREW REPORTED RIGHT GENERATOR FAILED AND ELECTRICAL ODOR IN CABIN. FIRST OFFICERS INSTRUMENTS WENT BLANK AND THE FLIGHT WAS IN INSTRUMENT CONDITIONS. EMERGENCY DECLARED FLIGHT RETURNED OMA LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND TERMINALS 4, 5 AND 6 NEUTRAL LOADS LOOSE AT BUSS BAR IN NACELLE JUNCTION BOX. TIGHTENED TERMINALS. SYSTEM GROUND CHECK NORMAL OPERATION.