Computer light transport has near midair collision with small aircraft on departure, at 1000 ft.

Attributes
ACN	280696
Time
Date	199408
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mdw
State Reference	IL
Altitude	msl bound lower : 1000 msl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mdw
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
Flight Phase	climbout : initial climbout : takeoff
Route In Use	departure other
Flight Plan	IFR
Aircraft 2
Make Model Name	Cessna Single Piston Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : cfi pilot : instrument
Experience	flight time last 90 days : 200 flight time total : 900 flight time type : 400
ASRS Report	280696
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : nmac non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 150 vertical : 20
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

We were departing chicago midway. We were departing runway 31C, using the midway 4 departure. At 1000 ft MSL the captain and I both saw a high wing single engine cessna at about 150 ft slightly high, passing from left to right, the aircraft appeared to be following the highway below. I immediately pushed forward on the controls to arrest my ascent to avoid collision. After clearing the aircraft I continued my climb and started a turn to 100 degrees as per the mdw 4 departure and maintained visual separation. After being handed off to departure, we reported the incident, the controller was supposed to 'pass it along.' before takeoff I recall hearing tower talking with a cessna who sounded disoriented with respect with his position in relation to the airport, and was waiting to pass through (I believe en route to major field). I feel that the aircraft may be the one we almost hit. ATC was obviously unaware of the traffic at the departure end of runway 31C. ATC for mdw is usually tops but someone 'dropped the ball' on this one was the words of the FAA inspector sitting in the jumpseat.

Original NASA ASRS Text

Title: COMPUTER LTT HAS NMAC WITH SMA ON DEP, AT 1000 FT.

Narrative: WE WERE DEPARTING CHICAGO MIDWAY. WE WERE DEPARTING RWY 31C, USING THE MIDWAY 4 DEP. AT 1000 FT MSL THE CAPT AND I BOTH SAW A HIGH WING SINGLE ENG CESSNA AT ABOUT 150 FT SLIGHTLY HIGH, PASSING FROM L TO R, THE ACFT APPEARED TO BE FOLLOWING THE HWY BELOW. I IMMEDIATELY PUSHED FORWARD ON THE CTLS TO ARREST MY ASCENT TO AVOID COLLISION. AFTER CLRING THE ACFT I CONTINUED MY CLB AND STARTED A TURN TO 100 DEGS AS PER THE MDW 4 DEP AND MAINTAINED VISUAL SEPARATION. AFTER BEING HANDED OFF TO DEP, WE RPTED THE INCIDENT, THE CTLR WAS SUPPOSED TO 'PASS IT ALONG.' BEFORE TKOF I RECALL HEARING TWR TALKING WITH A CESSNA WHO SOUNDED DISORIENTED WITH RESPECT WITH HIS POS IN RELATION TO THE ARPT, AND WAS WAITING TO PASS THROUGH (I BELIEVE ENRTE TO MAJOR FIELD). I FEEL THAT THE ACFT MAY BE THE ONE WE ALMOST HIT. ATC WAS OBVIOUSLY UNAWARE OF THE TFC AT THE DEP END OF RWY 31C. ATC FOR MDW IS USUALLY TOPS BUT SOMEONE 'DROPPED THE BALL' ON THIS ONE WAS THE WORDS OF THE FAA INSPECTOR SITTING IN THE JUMPSEAT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.