Atx X same altitude VFR traffic took evasive action.

Attributes
ACN	289700
Time
Date	199411
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : cmh
State Reference	OH
Altitude	msl bound lower : 5900 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : den
Operator	common carrier : air taxi
Make Model Name	Learjet 35
Operating Under FAR Part	Part 135
Flight Phase	cruise other
Route In Use	enroute : direct enroute airway : cmh
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	VFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 190 flight time total : 8700 flight time type : 4000
ASRS Report	289700
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	conflict : airborne less severe non adherence : clearance non adherence : far other spatial deviation
Independent Detector	other controllera
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 3000 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were in a lear 35 flying freight at night. We were inbound to cmh. Our routing takes us over bremn intersection to the ese of cmh. There we were switched over to cmh approach at 10000 ft. We were given a descent to 6000 ft. There was a semi-broken layer at about 5000 ft. This layer was not more than 500 ft thick. ATC informed us of traffic 2 O'clock, 5500 ft. Mode C indicated, but not talking to ATC. We were level at 6000 ft and had visual contact almost immediately. Traffic was crossing from our right to our left. The next transmission I recall was, traffic 12 O'clock, less than 1 mi, altitude indicating 5900 ft. That is when I took evasive action. I banked hard to the right, turned about 45 degrees right. When it appeared we were past him, we turned back toward cmh. At this point, we encountered his wake. We would have been on about a 310 degree heading initially. I don't know what type aircraft he was he was no bigger than us, but probably about the size of say a king air.

Original NASA ASRS Text

Title: ATX X SAME ALT VFR TFC TOOK EVASIVE ACTION.

Narrative: WE WERE IN A LEAR 35 FLYING FREIGHT AT NIGHT. WE WERE INBOUND TO CMH. OUR ROUTING TAKES US OVER BREMN INTXN TO THE ESE OF CMH. THERE WE WERE SWITCHED OVER TO CMH APCH AT 10000 FT. WE WERE GIVEN A DSCNT TO 6000 FT. THERE WAS A SEMI-BROKEN LAYER AT ABOUT 5000 FT. THIS LAYER WAS NOT MORE THAN 500 FT THICK. ATC INFORMED US OF TFC 2 O'CLOCK, 5500 FT. MODE C INDICATED, BUT NOT TALKING TO ATC. WE WERE LEVEL AT 6000 FT AND HAD VISUAL CONTACT ALMOST IMMEDIATELY. TFC WAS XING FROM OUR R TO OUR L. THE NEXT XMISSION I RECALL WAS, TFC 12 O'CLOCK, LESS THAN 1 MI, ALT INDICATING 5900 FT. THAT IS WHEN I TOOK EVASIVE ACTION. I BANKED HARD TO THE R, TURNED ABOUT 45 DEGS R. WHEN IT APPEARED WE WERE PAST HIM, WE TURNED BACK TOWARD CMH. AT THIS POINT, WE ENCOUNTERED HIS WAKE. WE WOULD HAVE BEEN ON ABOUT A 310 DEG HDG INITIALLY. I DON'T KNOW WHAT TYPE ACFT HE WAS HE WAS NO BIGGER THAN US, BUT PROBABLY ABOUT THE SIZE OF SAY A KING AIR.

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.