What was found
APPROXIMATELY 20 MINUTES BEFORE COMMENCING DESCENT, A FAIRLY STRONG SMOKE ODOR OCCURRED WHICH SEEMED ELECTRICAL IN NATURE. DONNED OXYGEN MASKS AND STARTED QRH SEARCH. DID A SNIFF TEST AFTER A COUPLE MINUTES AND THE ODOR HAD DISSIPATED. CONTINUED FLIGHT UNEVENTFULLY. SIMULATE ACFT IN THE AIR MODE IAW AMM32-09-02-2, OPEND OVERHEAD CIRCUIT BREAKER PANEL AND INSPECTED THE TERMINAL AND SPLICE NO BURNING TRACK FOUND, ALSO INSPECTED THE ELECTRICAL EQUIPMENT AND BUNDLE IN THE FWD EQUIPMENT CENTER AND MAIN EQUIPMENT CENTER WITH ACFT POWER ON FOR 4H, NO FUMES AND ELECTRICAL ODORS FOUND, PERFORM TROUBLESHOOTING IAW FIM21-00-01,EXAMINED THE RECIRCULATION FANS AND OPS TEST IAW AMM 21-25-00-5,NO ABNORMAL FOUND. PERFORMED BOTH ENG RUN PER JRH WITH BOTH PACKS ON, NO SMOKE OR FUMES DETECTED IN THE COCKPIT AND GALLEY AREA