Mdt had near midair collision with small aircraft.

Attributes
ACN	118508
Time
Date	198908
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ord
State Reference	IL
Altitude	msl bound lower : 5000 msl bound upper : 5200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : lex
Operator	common carrier : air carrier
Make Model Name	Medium Transport, High Wing, 2 Turboprop Eng
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	departure sid : sid enroute airway : ord
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	cruise other
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 240 flight time total : 4300 flight time type : 400
ASRS Report	118508
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 12500
ASRS Report	118492
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	other physical facility

Narrative:

We were departing ord receiving vectors as part of the O'hare 8 SID. As the first officer, I was hand flying the aircraft at 5000'. Chicago approach then cleared us to climb and maintain 10,000'. I initiated a climb and at the same time, looked down and set 10,000' in the altitude select window. I then felt the captain exert a strong nose down pressure on the yoke, and looked up in time to see a low wing light aircraft small aircraft pass over our aircraft, missing us by not more than 200' vertical separation. ATC at no time advised us of this traffic.

Original NASA ASRS Text

Title: MDT HAD NMAC WITH SMA.

Narrative: WE WERE DEPARTING ORD RECEIVING VECTORS AS PART OF THE O'HARE 8 SID. AS THE F/O, I WAS HAND FLYING THE ACFT AT 5000'. CHICAGO APCH THEN CLRED US TO CLIMB AND MAINTAIN 10,000'. I INITIATED A CLIMB AND AT THE SAME TIME, LOOKED DOWN AND SET 10,000' IN THE ALT SELECT WINDOW. I THEN FELT THE CAPT EXERT A STRONG NOSE DOWN PRESSURE ON THE YOKE, AND LOOKED UP IN TIME TO SEE A LOW WING LIGHT ACFT SMA PASS OVER OUR ACFT, MISSING US BY NOT MORE THAN 200' VERTICAL SEPARATION. ATC AT NO TIME ADVISED US OF THIS TFC.

Data retrieved from NASA's ASRS site as of August 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.