An IFR small aircraft had an near midair collision with a VFR small aircraft.

Attributes
ACN	263794
Time
Date	199402
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : tth
State Reference	IN
Altitude	msl bound lower : 8000 msl bound upper : 8000
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : huf
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Make Model Name	Piper Single Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 50 flight time total : 8000 flight time type : 400
ASRS Report	263794
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac non adherence : published procedure other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was on an IFR flight plan, ptk LORAN direct to 6m2. I was talking to hulman approach at XU53Z. A piper arrow passed exactly overhead, no more than 100 ft, heading north. I was on a heading of 230 degrees. I asked the controller why he didn't report this plane in my area. He said he did not see him. Seems odd such a plane at 8000 ft going north wouldn't be seen when the controller had no problem seeing me. This is a risky situation if such is the case. Do you have faulty radar? If the other plane was at 8000 ft he must also have been on an IFR plan!

Original NASA ASRS Text

Title: AN IFR SMA HAD AN NMAC WITH A VFR SMA.

Narrative: I WAS ON AN IFR FLT PLAN, PTK LORAN DIRECT TO 6M2. I WAS TALKING TO HULMAN APCH AT XU53Z. A PIPER ARROW PASSED EXACTLY OVERHEAD, NO MORE THAN 100 FT, HDG N. I WAS ON A HDG OF 230 DEGS. I ASKED THE CTLR WHY HE DIDN'T RPT THIS PLANE IN MY AREA. HE SAID HE DID NOT SEE HIM. SEEMS ODD SUCH A PLANE AT 8000 FT GOING N WOULDN'T BE SEEN WHEN THE CTLR HAD NO PROB SEEING ME. THIS IS A RISKY SIT IF SUCH IS THE CASE. DO YOU HAVE FAULTY RADAR? IF THE OTHER PLANE WAS AT 8000 FT HE MUST ALSO HAVE BEEN ON AN IFR PLAN!

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.