Small Aircraft
Flight Crew Private; Flight Crew Instrument
Flight Crew Last 90 Days 1; Flight Crew Total 2200; Flight Crew Type 1900
Conflict NMAC
General None Reported / Taken
Airspace Structure; Human Factors
I called the Southern tower 11 miles out and received pattern entry instructions. Descending from 3;500 feet. As I was around 2;500 feet I saw a Cessna aircraft coming in my direction; it looked like he was flying about 165 degrees as he approached MWA. He went directly over me; probable 400 feet clearance or less. The Cessna aircraft didn't take any evasive maneuvers; nor did I. I was talking to the tower at MDH and he was probably communicating with St. Louis or the MWA tower. My transponder was not turned on; as we don't have much radar coverage below 4;000 feet in our area. Perhaps if it was on he may have had an advisory.
Small aircraft pilot experiences a NMAC with a Cessna at 2500 feet approaching MDH. A transponder was aboard; but not turned on. No evasive action was taken.