What was found
SHORTLY AFTER T/O THERE WAS A HOT SMELL IN THE COCKPIT FOLOWED BY A CALL FROM THE AFT F/A ATATING THAT THE CAPT. SIDE AFT LAV SMOKE ALARM WAS GOING EXPERIENCED ODOR, A SHORT TIME LATER THE RIGHT AFT LAV SMOKE ALARM WENT OFF. BEFORE THE APPROACH STARTED, BOTH ALARMS STOPPED AFTER BEING ON FOR A LONG TIME. THEN BOTH ALARMS CAME BACK ON. F/A REPORTED A BURNING SMELL, BUT NO VISIBAL SMOKE. AFTER LANDING, THE MID F/A SMELLED AN ELECTRICAL ODOR. REPLACED COALESCER BAGS. PERFORMED DUCT BURNOUT. CHECKED ACM FOR LEAKS, NONE FOUND. RAN ENGINES.