What was found
AIRCRAFT HAS BEEN SERVICED 3 TIMES FOR A STRONG ODOR IN THE COCKPIT. MECHANIC ON ARRIVAL YESTERDAY SMELLED IT OUTSIDE. LAV FUNCTIONS NORMALLY. LOAD CREW COULD SMELL IN THE MAIN DECK. LAV SERVICED. INSPECTED CABIN AND MAIN DECK. REF: AMM 05-41-02. INSPECTED E&E AND LOWER CARGOS PER 05-41-01. INSPECTED PACK BAY AND OPERATED PACKS PER AMM 21-00-00. PACK BAY CLEAN AND NO SMELL COMING FROM PACKS. SMELL SEEMS TO ORIGINATE FROM BACK OF MAIN CARGO DECK AROUND POSITION 12 AND 13. MOC NOTIFIED. AIRCRAFT OK FOR SERVICE.