What was found
NOTICED ELECTRICAL BURNING ODOR IN CABIN. CREW REPORTED GEN 1 FAULTED SEVERAL TIMES ON TAXI OUT, NUMEROUS FAULTS REPORTED ON BUSS 1 THRU CFDS. AFTER APU PUT ON LINE, WITH ENG 2 POWERING BUSS 2, IT APPEARED GEN 2 HAD PROBLEMS REFLECTED BY A FAULT LIGHT & FLICKERING LIGHTS. INSPECTED CONNECTORS AT FIREWALL ON BOTH EINGINES. NO DISCREPANCY FOUND. RAN APU AND BOTH ENGINES WITH BOTH PACK OPERATING, CYCLED LT AND RT GENERATORS ON & OFF, DID NOT DETECT AN ELECTRICAL ODOR IN CABIN OR COCKPIT. NO OTHER DEFECTS NOTED AT THIS TIME.