What was found
STL - FLIGHT 3153, DURING PREFLIGHT INSPECTION THE CREW REPORTED A SMOKEY ODOR IN THE GALLEY. MAINTENANCE INSPECTED THE AIRCRAFT AND PLACED THE APU ON MEL 49-00-00 CAT C CONTROL 118810, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. 10-9-07 ON 04/05/07 CLE MAINTENANCE REMOVED AND REPLACED THE APU BLEED AIR VALE, OPERATIONALLY CHECKED WITH NO DEFECTS, REMOVED THE MEL, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE