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NTSB Report
July 9, 1989 · Dornier DO-228 · N263MC
Chicago, IL
Overview
Report Status
Probable Cause
Event Type
Incident
Date
July 9, 1989
Injury Outcomes
No injuries (16 uninjured)
Location
Chicago, IL
Aircraft
Dornier DO-228
Tail Number
N263MC
Injuries
None
NTSB Number
CHI89IA144
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 HORIZONTAL AND 100 FEET VERTICAL. THE CREW OF A COMMUTER MADE A STEEP 45 DEGREE BANK AND A NOSE DOWN MANEUVER OF ABOUT 15 DEGREES TO AVOID THE TWIN ENGINE BEECH BARON. O'HARE APPROACH HAD ISSUED TRAFFIC TO THE MIDWAY COMMUTER.
NTSB Probable Cause
POOR LOOKOUT BY THE CREW OF THE DORNIER AND THE BARON.
Full Narrative
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 HORIZONTAL AND 100 FEET VERTICAL. THE CREW OF A COMMUTER MADE A STEEP 45 DEGREE BANK AND A NOSE DOWN MANEUVER OF ABOUT 15 DEGREES TO AVOID THE TWIN ENGINE BEECH BARON. O'HARE APPROACH HAD ISSUED TRAFFIC TO THE MIDWAY COMMUTER.
Flight
Event TypeIncident
Event Time16:05 CDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftDornier DO-228
Tail NumberN263MC
Aircraft CategoryAir
Operating RulePart 135
Engines2
Engine TypeTurboprop
Engine DetailsGarrett · TPE 331-5 · Turboprop · 715
Seats20
People & Injuries
Injury SummaryNo injuries (16 uninjured)
Fatal0
Serious0
Minor0
Uninjured16
Total16
Crew 1First Class
Conditions
ConditionsVMC
LightDaylight
Wind220° @ 11 kt
Visibility6 sm
CeilingBroken clouds 5000 ft
Altimeter29.00 inHg
Observation Time20:48
Weather SourceWFAC