What was found
CREW REPORTED STRONG ODOR IN CABIN AFTER TAKEOFF, DECLARED EMERGENCY AND RETURNED TO FIELD AT MKE. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT PER EMB AMM AND PERFORMED HIGH POWER ENGINE RUNS, AND WERE UNABLE TO DUPLICATE ANY ODORS, ALL WAS OPS CHECK GOOD. A/C WAS THEN RETURNED TO SERVICE.