What was found
LGA FLT 2117 BOS-LGA DIRTY/MUSTY OIL SMELL DURING TAXI, TAKEOFF, CRUISE, DESCENT, TAXI-IN. DRAINED NR 1 ENGINE OIL TANK. RAN PACKS, WITH AIR SOURCE FROM THE APU AND ENGINES NR 1 & 2. NO ODOR DETECTED. AIRCRAFT OK FOR CONTINUED SERVICE.