What was found
DURING SECOND (#2) ENGINE START FLIGHT ATTENDANTS DETECTED A STRONG OIL SMELL IN THE CABIN. ALL WAS CLEAR PRIOR. FLT ATTEND ADVISED SMELL STARTED DURING 1ST ENGINE START. THE ODOR ACTUALLY WAS NOTED DURING THE FIRST ENGINE START. NO ODORS NOTED WITH APU BLEED/PACKS ON. STARTED THE NR 2 ENG. NO SMELL NOTED. 2ND AND 3RD START OF ENG. USING THE APU, POSSIBILITY OF FAINT SMELL OF OIL ON START. NO SMELL NOTED NR 1 ENG. SMELL ON CROSS STARTS. RAN PACK WITH APU AND ENG.S. NO SMELL NOTED. PER TSM THIS WOULD BE REFERED AS A SINGLE SOURCE LOW INTENSITY.