What was found
DFW - FLT 5108 - FAINT ELECTRICAL ODOR DETECTED MOMENTARILY IN CABIN AREA, POSSIBLY ADJACENT TO ROWS 4 AND 5. ODOR WAS DETECTED BY F/A AND A COCKPIT QUALIFIED PASSENGER TRAVELING IN THE CABIN. THIS IS A REPEAT WRITE-UP FROM PREVIOUS FLIGHT. INSPECTED LIGHT SOCKETS AND BALLASTS. FOUND TWO BAD, ONE FOR WINDOW AND ONE FOR OVERHEAD LIGHTS AT MID CABIN. REMOVED AND REPLACED BALLASTS. OPERATIONAL CHECK GOOD. (M)