What was found
EN ROUTE FROM FLL TO CLT, AT FL240, A STRONG ODOR FROM ROW 4 & FWD TO COCKPIT WAS NOTICED. ODOR LASTED FOR ABOUT TEN MINUTES. WHEN CREW STARTED DESCENT, ODOR STARTED TO DISSIPATE, NO SMELL IN AFT CABIN. FLIGHT CONTINUED & LANDED WITHOUT FURTHER INCIDENT. ACCOMPLISHED TROUBLESHOOTING JOB CARD 03L00021001. NO NINETY DAY HISTORY FOUND, NO ODOR FOUND & ACFT OK FOR SERVICE.