As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT-MKE - FLT 1800 - DURING CLIMB-OUT, THERE WAS A STRONG ODOR IN THE AFT HALF OF THE PAX CABIN BUT NO VISIBLE SMOKE. THE AIRCRAFT RETURNED TO THE FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE AIR CONDITIONING WATER SEPARATOR COALESCER BAGS. (M)