What was found
APU RUNNING, WITH NR 2 ENGINE BLEEDS ON 30 SEC LATER STRONG ODOR IN FLIGHT DECK AND FWD CABIN SHUTOFF BLEEDS AND RECIRCULATING FAN ODOR DISSAPATED. GROUND RAN A/C. C/W FIM 21-20-00-810-801A, NO DEFECTS NOTED. C/W FIG FIM 21-20-00-810-803A, NO ODOR FROM EITHER ENGINE BLEED, APU BLEED OR PACKS 1 & 2. CND IF CONDITION OCCURES AGAIN, MORE DETAILS ARE REQUIRED. OK FOR SERVICE.