What was found
ON DEPARTURE OUT OF PHX EN ROUTE FOR DFW ELECTRICAL ODOR FILLED THE FLIGHT DECK, TURNED BACK & LANDED WITHOUT FURTHER EVENT. FLT ATTENDANT REPORTED A BURNING ELECTRICAL ODOR FROM SEAT ROW 27 AFT. MAINTENANCE INSPECTED BOTH FORWARD AND AFT EQUIPMENT CENTERS, NO DEFECTS OR CIRCUIT BREAKERS WERE POPPED. REMOVED AND REPLACED RT RECIRCULATION FAN IAW T/C R2B21601, OPERATIONAL CHECK WAS GOOD. VENDORS FUNCTIONAL CHECK OF CIRCULATION FAN S/N 1348 WAS NO FAULT FOUND. RECEIVING INSPECTION IDENTIFIED A BROKEN MOUNT EAR, UNIT WAS DISASSEMBLED AND WORN BEARINGS WERE ALSO IDENTIFIED. REPLACED MOUNT BRACKET, AND 2 EACH BEARINGS. UNIT REPAIRED AND RETURNED TO SERVICE IAW CMM 21-25-04, REV. 5.