What was found
DURING PREFLIGHT INSP THE CREW REPORTED A SMOKE ODOR COMING FROM SEATS 3 & 4A. THE ACFT WAS RELEASED ON MEL 33-20-00 CAT C CTL NR 153947. THE AC LANDED, WHERE MAINT REMOVED AND REPLACED THE LIGHT SOCKET HARNESS ASSY AT ROW 4A, OPERATIONALLY CHECKED WITH NO DEFECTS, REMOVED THE MEL, AND THE AC WAS APPROVED FOR RETURN TO SERVICE. (K)