NTSB Identification: CHI89IA145.
The docket is stored on NTSB microfiche number 41736.
Scheduled 14 CFR
Incident occurred Sunday, July 09, 1989 in CHICAGO, IL
Probable Cause Approval Date: 08/26/1992
Aircraft: DORNIER DO-228, registration: N265MC
Injuries: 9 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

A NEAR MIDAIR COLLISION OCCURRED AT 5000 FEET MSL IN UNCONTROLLED AIRSPACE, BUT WITHIN THE 30 MILE VEIL OF O'HARE, WHERE A MODE C TRANSPONDER WAS REQUIRED. SEPARATION WAS ABOUT 200 FEET. THE CREW OF A COMMUTER AND A CITABRIA PILOT STATED THAT BY THE TIME THEY SAW EACH OTHER, IT WAS TOO LATE TO TAKE EVASIVE ACTION. THE COMMUTER PILOT ESTIMATED THE VISIBILITY WAS ABOUT 2 TO 3 MILES IN HAZE.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

POOR LOOKOUT BY THE CREW OF THE DORNIER AND THE CITABRIA.

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