ZTL experienced near midair collision with IFR arrival and VFR departure traffic at hky.

Attributes
ACN	582495
Time
Date	200305
Day	Wed
Local Time Of Day	0601 To 1200
Place
State Reference	NC
Altitude	msl single value : 4000
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl.artcc
Operator	general aviation : personal
Make Model Name	Cessna 210 Centurion / Turbo Centurion 210C, 210D
Operating Under FAR Part	Part 91
Navigation In Use	other vortac
Flight Phase	climbout : intermediate altitude
Flight Plan	VFR
Aircraft 2
Controlling Facilities	artcc : ztl.artcc
Operator	general aviation : corporate
Make Model Name	Beechjet 400
Operating Under FAR Part	Part 91
Navigation In Use	other vortac
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 21 flight time total : 10
ASRS Report	582492
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac conflict : airborne critical
Independent Detector	aircraft equipment : tcas other controllera
Resolutory Action	controller : issued advisory controller : issued new clearance
Consequence	faa : investigated faa : reviewed incident with flight crew
Miss Distance	horizontal : 3000 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Ambiguous

Narrative:

The BE40, aircraft Y, was inbound to hky. A visual approach was coordinated with the tower. The C210, aircraft X, departed hky, VFR, direct roc (to the northeast). The BE40 was inbound from the north. The C210 requested VFR advisories and was told to standby. I had just sat down at the sector and was running 30 mi in trail to clt. Upon clearing higher terrain, I cleared the BE40 from 5000 ft to 3400 ft 'report the airport in sight.' the BE40 read back the altitude and said he would need an approach. I looked again and the BE40 wasn't proceeding direct to the airport. He was going direct to tawba (4 mi northeast of hky) without being cleared to do so. I turned him due east to miss the C210. The C210 hadn't even been given a code yet and was not radar idented. I made the assumption it was him (no other VFR traffic) and called the traffic. I don't believe either aircraft saw the other. The BE40 never reported receiving a TCASII alert. I got the chance to talk to the BE40 pilot later in the day. He said he saw the other aircraft on TCASII and the WX didn't look VFR to him.

Original NASA ASRS Text

Title: ZTL EXPERIENCED NMAC WITH IFR ARR AND VFR DEP TFC AT HKY.

Narrative: THE BE40, ACFT Y, WAS INBOUND TO HKY. A VISUAL APCH WAS COORDINATED WITH THE TWR. THE C210, ACFT X, DEPARTED HKY, VFR, DIRECT ROC (TO THE NE). THE BE40 WAS INBOUND FROM THE N. THE C210 REQUESTED VFR ADVISORIES AND WAS TOLD TO STANDBY. I HAD JUST SAT DOWN AT THE SECTOR AND WAS RUNNING 30 MI IN TRAIL TO CLT. UPON CLRING HIGHER TERRAIN, I CLRED THE BE40 FROM 5000 FT TO 3400 FT 'RPT THE ARPT IN SIGHT.' THE BE40 READ BACK THE ALT AND SAID HE WOULD NEED AN APCH. I LOOKED AGAIN AND THE BE40 WASN'T PROCEEDING DIRECT TO THE ARPT. HE WAS GOING DIRECT TO TAWBA (4 MI NE OF HKY) WITHOUT BEING CLRED TO DO SO. I TURNED HIM DUE E TO MISS THE C210. THE C210 HADN'T EVEN BEEN GIVEN A CODE YET AND WAS NOT RADAR IDENTED. I MADE THE ASSUMPTION IT WAS HIM (NO OTHER VFR TFC) AND CALLED THE TFC. I DON'T BELIEVE EITHER ACFT SAW THE OTHER. THE BE40 NEVER RPTED RECEIVING A TCASII ALERT. I GOT THE CHANCE TO TALK TO THE BE40 PLT LATER IN THE DAY. HE SAID HE SAW THE OTHER ACFT ON TCASII AND THE WX DIDN'T LOOK VFR TO HIM.

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.