Light transport took evasive action to miss an ult.

Attributes
ACN	105676
Time
Date	198902
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pbi
State Reference	FL
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : pbi
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach descent other
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Ultralight
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 7 controller radar : 20
ASRS Report	105676
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : nmac non adherence : far other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : investigated
Miss Distance	horizontal : 500 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

I was working radar approach clt. Not busy at the time. Light transport inbound descended to 2000'. Another controller working next to me advised me an ult was seen by an aircraft he was working. I called traffic I saw (believed to be the ult). On the third call light transport picked up traffic and took evasive action. Pilot later called on phone and stated they would have hit the ult if they hadn't seen it. Sheriff helicopter dispatched to scene and got the pilot of unregistered ult.

Original NASA ASRS Text

Title: LTT TOOK EVASIVE ACTION TO MISS AN ULT.

Narrative: I WAS WORKING RADAR APCH CLT. NOT BUSY AT THE TIME. LTT INBND DSNDED TO 2000'. ANOTHER CTLR WORKING NEXT TO ME ADVISED ME AN ULT WAS SEEN BY AN ACFT HE WAS WORKING. I CALLED TFC I SAW (BELIEVED TO BE THE ULT). ON THE THIRD CALL LTT PICKED UP TFC AND TOOK EVASIVE ACTION. PLT LATER CALLED ON PHONE AND STATED THEY WOULD HAVE HIT THE ULT IF THEY HADN'T SEEN IT. SHERIFF HELI DISPATCHED TO SCENE AND GOT THE PLT OF UNREGISTERED ULT.

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.