What was found
FLT 302, FLL-JFK. LEVEL TWO ODOR AT 4000 FEET IN THE DESCENT RESOLVED WITH STEP 9 WITH ODOR ISOLATION CHECKLIST 3 FLIGHT ATTENDANTS IN THE BACK ODOR IT ALSO DIRTY SOCKS WERE REPORTED; REF LP 4427679 #1 FOR APU BORO + WO 1518878 FOR LEVEL B DECON APU WASH + BLACK LIGHT INSP ENG 1 & 2 SPINNER INSP NO DEFECTS / ODORS NOTED A/C OK TO CONT SVC. PERFORMED APU BOROSCOPE INSPECTION OF LOAD COMPRESSOR AS PER AMM 49-70-00-200-003-A NO OIL WAS FOUND. UPON INSPECTION FOUND AFT CARGO SELECTOR VALVE RETURN LINE DAMAGED REF LP 4427680-2 FOR REPAIR OF RETURN LINE. REF LP 4427677 AND 4427676 FOR CLOSURE OF FAN AND CORE COWLS.CLOSED / SECURED ENG 1+2 CORE COWLS PER AMM 78-32-00REPLACED OIL SUPPLY LINE ON ENG 2 REF AMM 79-21-49 REF LP 4427681-2 FOR REQUIRED LEAK CHKS