Close proximity commuter light transport GA-small aircraft.

Attributes
ACN	82668
Time
Date	198802
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : dqn airport : day
State Reference	OH
Altitude	msl bound lower : 5900 msl bound upper : 6500
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : day
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	climbout : intermediate altitude
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : instrument pilot : atp pilot : cfi
Experience	flight time last 90 days : 212 flight time total : 4536 flight time type : 1023
ASRS Report	82668
Person 2
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	conflict : nmac inflight encounter : vfr in imc non adherence : far
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action other
Consequence	Other
Miss Distance	unspecified : 600
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

WX: bases at 3500' MSL overcast, tops 6000' MSL, clear above. Around 120 degree radial of dqn, 35 DME, we were assigned a heading of 250 degree and clrd from 8000' to 6000'. At 6500' controller called a traffic conflict alert. Hold present altitude, traffic at 5900' climbing. 'I'm not talking to him'. The controller issued an additional warning of the traffic at 10:30 and less than 1 mi. A low wing, white, fixed gear aircraft popped out of the overcast, apparently flying in IMC without an IFR clearance. Lucky for all, the offending party was smart (?) to leave the mode C on. My many thanks to the controller.

Original NASA ASRS Text

Title: CLOSE PROX COMMUTER LTT GA-SMA.

Narrative: WX: BASES AT 3500' MSL OVERCAST, TOPS 6000' MSL, CLEAR ABOVE. AROUND 120 DEG RADIAL OF DQN, 35 DME, WE WERE ASSIGNED A HDG OF 250 DEG AND CLRD FROM 8000' TO 6000'. AT 6500' CTLR CALLED A TFC CONFLICT ALERT. HOLD PRESENT ALT, TFC AT 5900' CLIMBING. 'I'M NOT TALKING TO HIM'. THE CTLR ISSUED AN ADDITIONAL WARNING OF THE TFC AT 10:30 AND LESS THAN 1 MI. A LOW WING, WHITE, FIXED GEAR ACFT POPPED OUT OF THE OVERCAST, APPARENTLY FLYING IN IMC WITHOUT AN IFR CLRNC. LUCKY FOR ALL, THE OFFENDING PARTY WAS SMART (?) TO LEAVE THE MODE C ON. MY MANY THANKS TO THE CTLR.

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.