What was found
IMMEDIATELY AFTER TAKE OFF F/A'S REPORTED FUMES/ SMOKE IN CABIN. FOLLOWED QRH PROCEDURES FOR RETURN TO LAX. SOURCE OF FUMES/SMOKE COULD NOT DETERMINED BY CABIN CREW. NOTE: NR 2 ENG OIL QTY DURING START WAS 70%. AT STRTR CUTOUT OIL QTY WAS 98% / REPLACED NR 2 ENG SUPPLY FILTER PER AMM 79-21-03 & SCAVENGE FILTER PER AMM 79-21-06. DRAINED EXCESS OIL FROM RESERVOIR & SERVICED TO PROPER LEVEL PER AMM 12-13-11. ENG IDLE RUNS GOOD, NO OTHER FAULTS NOTED AT THIS TIME. PERFORMED NR 2 ENG INTERNAL OIL SYSTEM INSPECTION BORESCOPE PER POWER PLANT ENGINEERING REF NRC D350652 FOR COMPLETION. REF LOGPAGE FOR RESOLUTION OF SMOKE/FUMES IN CABIN.