What was found
FLT 32 JFK-ROC, AIR RETURN TO JFK: DURING CLIMBOUT, INFLIGHT CALLED AND REPORTED A STRONG ELECTRICAL BURNING SMELL COMING FROM THE REAR OF THE CABIN. CREW ELECTED TO AIR RETURN TO JFK POWERING DOWN THE LIVE TV SYSTEM. DURING THE RETURN, BURNING SMELL GRADUALLY DISSIPATED. ACCOMPLISHED FIM TASK 24-00-00-810-823. CHECKED UNDER SEAT SEB FROM ROWS 15 TO 25 NO BURNING SMELL OR DAMAGE NOTED. SEAT HARNESS LOOKS OK. INSPECTED AFT COFFEEMAKERS NO BURNT PINS OR DAMAGE NOTED. INSPECTED FWD & AFT CARGO HOLDS. FOUND NO CIRCUIT POPPED. NO EVIDENCE OF ANY ELECTRICAL SMELL. ACCOMPLISHED SYS OPS CHECK IAW 23-39-00. LVTV WAS PLACED ON MEL 23-39-00 CONDITION 3. ACCOMPLISHED ELECTRICAL ODOR IN CABIN INSPECTION PER TSM 23-39-801. INSPECTED AFT RACK, ENTIRE CABIN XEB'S LINE IN SYSTEM RE-ACTIVATED MEL CLEARED.