Pilot being vectored for a visual approach saw another aircraft at his altitude.

Attributes
ACN	144679
Time
Date	199005
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : hts
State Reference	WV
Altitude	msl bound lower : 2600 msl bound upper : 2600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : hts
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	landing other
Route In Use	approach : visual arrival other enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller radar : 5
ASRS Report	144679
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 9000 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

While vectoring light transport (IFR cvg-hts) for a visibility approach at hts, the pilot reported to me that he saw traffic pass very near him. At the time the aircraft was on an assigned heading of 130 degree at 2600' MSL. This heading took the aircraft 4 NM northeast of a small uncontrolled field that is on the ohio side of the ohio river (htw). During his vector for the approach, I had issued several heading and altitude restrictions due to other traffic, and did not see a target or transponder return in the area 10 NM northeast of hts. As the pilot passed through this area, he asked if I saw traffic pass close to him. I replied negative. Once on the ground, the pilot informed the watch supervisor that it appeared to be a single engine small aircraft, 1 1/2 mi away and at the same altitude. The other aircraft did not establish contact with me. At the time of the event, I cannot recall if the aircraft had been cleared for a visibility approach yet. Time of event, approximately xx:45Z, and I had been on position approximately 20 min.

Original NASA ASRS Text

Title: PLT BEING VECTORED FOR A VISUAL APCH SAW ANOTHER ACFT AT HIS ALT.

Narrative: WHILE VECTORING LTT (IFR CVG-HTS) FOR A VIS APCH AT HTS, THE PLT RPTED TO ME THAT HE SAW TFC PASS VERY NEAR HIM. AT THE TIME THE ACFT WAS ON AN ASSIGNED HDG OF 130 DEG AT 2600' MSL. THIS HDG TOOK THE ACFT 4 NM NE OF A SMALL UNCTLED FIELD THAT IS ON THE OHIO SIDE OF THE OHIO RIVER (HTW). DURING HIS VECTOR FOR THE APCH, I HAD ISSUED SEVERAL HDG AND ALT RESTRICTIONS DUE TO OTHER TFC, AND DID NOT SEE A TARGET OR XPONDER RETURN IN THE AREA 10 NM NE OF HTS. AS THE PLT PASSED THROUGH THIS AREA, HE ASKED IF I SAW TFC PASS CLOSE TO HIM. I REPLIED NEGATIVE. ONCE ON THE GND, THE PLT INFORMED THE WATCH SUPVR THAT IT APPEARED TO BE A SINGLE ENG SMA, 1 1/2 MI AWAY AND AT THE SAME ALT. THE OTHER ACFT DID NOT ESTABLISH CONTACT WITH ME. AT THE TIME OF THE EVENT, I CANNOT RECALL IF THE ACFT HAD BEEN CLRED FOR A VIS APCH YET. TIME OF EVENT, APPROX XX:45Z, AND I HAD BEEN ON POS APPROX 20 MIN.

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.