What was found
AIR TURNBACK, DURING CLIMB, NR 2 ENGINE OIL QTY WENT TO ZERO AND OIL PRESS DROPPED TO 20 PSI. REMOVED AND REPLACED NR 2 ENG OIL SUPPLY FILTER AND SCAVANGE FILTER, NO CONTAMINATION ON FILTERS. FOUND POLYMIDE MATERIAL IN FWD SCAVANGE OIL SUMP. REMOVED MATERIAL, DRAINED, FLUSHED AND SERVICED SYSTEM PER MM.