Close proximity commuter-light transport GA-unk in laf control zone.

Attributes
ACN	172506
Time
Date	199102
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : laf
State Reference	IN
Altitude	msl bound lower : 1800 msl bound upper : 2000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : laf tower : fwa
Operator	common carrier : air carrier
Make Model Name	Light Transport, High Wing, 2 Turboprop Eng
Flight Phase	descent : approach descent other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 210 flight time total : 5400 flight time type : 2300
ASRS Report	172506
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	conflict : airborne less severe non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 2500 vertical : 150
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Pilot Deviation Inter Facility Coordination Failure

Narrative:

After passing the laf VOR and descending though IMC conditions, we broke out of the clouds at about 1900' MSL and descended to 1800' MSL. We were on the VOR-a approach to laf at 6 DME traffic reported itself at about 5 DME, 2000' MSL on the 150 degree right opp direction. Right after he reported his position, he passed off our right side 100-200' above us and 1/4-1/2 mi away from us.

Original NASA ASRS Text

Title: CLOSE PROX COMMUTER-LTT GA-UNK IN LAF CTL ZONE.

Narrative: AFTER PASSING THE LAF VOR AND DSNDING THOUGH IMC CONDITIONS, WE BROKE OUT OF THE CLOUDS AT ABOUT 1900' MSL AND DSNDED TO 1800' MSL. WE WERE ON THE VOR-A APCH TO LAF AT 6 DME TFC RPTED ITSELF AT ABOUT 5 DME, 2000' MSL ON THE 150 DEG R OPP DIRECTION. RIGHT AFTER HE RPTED HIS POS, HE PASSED OFF OUR RIGHT SIDE 100-200' ABOVE US AND 1/4-1/2 MI AWAY FROM US.

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.