Near midair collision between air carrier-medium large transport and departing unk-small transport.

Attributes
ACN	95312
Time
Date	198809
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : jot airport : mdw
State Reference	IL
Altitude	msl bound lower : 6100 msl bound upper : 6300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord tower : bdl
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	climbout : intermediate altitude
Route In Use	departure other
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 250 flight time total : 9500 flight time type : 2200
ASRS Report	95312
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 400 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

While descending from cruise altitude, passing through 7000' MSL 5 mi west of jot, we were give traffic information by approach control at our 11 O'clock position, 5 mi, altitude unknown. Short time later we saw the aircraft at 11 O'clock and 2 mi, climbing and on a collision course. We were heading 075 degrees and the other aircraft was heading south. After approximately 3 seconds we turned left to avoid collision. At this time the other aircraft saw us and turned away from us to his left. The aircraft was a light twin with tip tanks. It was white with possible red and blue stripes along the fuselage. At the time of the near miss, approach control was having transmission difficulties, so we were not in constant contact. After landing I called approach and gave the report to area manager, I'm afraid that the only way that this type of situation, and possibly a major air catastrophe can be avoided, is to make all arrival and departure corridors at air carrier airports controled airspace.

Original NASA ASRS Text

Title: NMAC BETWEEN ACR-MLG AND DEPARTING UNK-SMT.

Narrative: WHILE DSNDING FROM CRUISE ALT, PASSING THROUGH 7000' MSL 5 MI W OF JOT, WE WERE GIVE TFC INFO BY APCH CTL AT OUR 11 O'CLOCK POS, 5 MI, ALT UNKNOWN. SHORT TIME LATER WE SAW THE ACFT AT 11 O'CLOCK AND 2 MI, CLBING AND ON A COLLISION COURSE. WE WERE HDG 075 DEGS AND THE OTHER ACFT WAS HDG S. AFTER APPROX 3 SECS WE TURNED LEFT TO AVOID COLLISION. AT THIS TIME THE OTHER ACFT SAW US AND TURNED AWAY FROM US TO HIS LEFT. THE ACFT WAS A LIGHT TWIN WITH TIP TANKS. IT WAS WHITE WITH POSSIBLE RED AND BLUE STRIPES ALONG THE FUSELAGE. AT THE TIME OF THE NEAR MISS, APCH CTL WAS HAVING XMISSION DIFFICULTIES, SO WE WERE NOT IN CONSTANT CONTACT. AFTER LNDG I CALLED APCH AND GAVE THE RPT TO AREA MGR, I'M AFRAID THAT THE ONLY WAY THAT THIS TYPE OF SITUATION, AND POSSIBLY A MAJOR AIR CATASTROPHE CAN BE AVOIDED, IS TO MAKE ALL ARR AND DEP CORRIDORS AT AIR CARRIER ARPTS CTLED AIRSPACE.

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.