As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RDU - FLT 0822 - ELECTRICAL BURNING ODOR DETECTED 1.5 HOURS INTO FLIGHT AT FL 330. VERY STRONG AT FIRST AND DISSIPATED AFTER FEW MINUTES. DIVERTED AND LANDED RDU WITHOUT INCIDENT. COMPLETE INSPECTION OF ELECTRICAL, LIGHTS, AND AIR CONDITIONING SYSTEM ACCOMPLISHED. UNABLE TO DUPLICATE ODOR. ACCOMPLISHED PACK BURNOUT. SYSTEM GROUND CHECKED, NORMAL OPERATION. (X)