Approach controller lost radar contact with a GA aircraft for approximately 10 mi.

Attributes
ACN	224333
Time
Date	199210
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : slc
State Reference	UT
Altitude	msl bound lower : 9000 msl bound upper : 9000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Route In Use	enroute airway : slc
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 8 controller radar : 12
ASRS Report	224333
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other
Situations
Navigational Aid	Unspecified

Narrative:

I was working small aircraft X at 9000 on V21 40 mi north of slc. I lost his beacon target, followed by his primary target. I did not regain radar contact for 10 mi. I called salt lake center and confirmed that they had small aircraft X's transponder.

Original NASA ASRS Text

Title: APCH CTLR LOST RADAR CONTACT WITH A GA ACFT FOR APPROX 10 MI.

Narrative: I WAS WORKING SMA X AT 9000 ON V21 40 MI N OF SLC. I LOST HIS BEACON TARGET, FOLLOWED BY HIS PRIMARY TARGET. I DID NOT REGAIN RADAR CONTACT FOR 10 MI. I CALLED SALT LAKE CTR AND CONFIRMED THAT THEY HAD SMA X'S TRANSPONDER.

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.