Air carrier X data tag jump on final approach to srq. ATC equipment problem radar ARTS IIIA.

Attributes
ACN	227837
Time
Date	199211
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : tpa
State Reference	FL
Altitude	agl bound lower : 300 agl bound upper : 300
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : tpa
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 5 controller non radar : 1 controller radar : 10
ASRS Report	227837
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : unable
Consequence	faa : investigated
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other
Situations
Navigational Aid	Unspecified

Narrative:

Air carrier X was on 2-3 mi final to runway 32 at srq. Entire data tag jumped to a point 25 ene of srq (outside tpa approach airspace) for at least 1 full sweep, then jumped back on a short final at srq. The aircraft was about 300-400 ft when the 'tag' left the target. This was reported to management/af via tpa form 6190-2.

Original NASA ASRS Text

Title: ACR X DATA TAG JUMP ON FINAL APCH TO SRQ. ATC EQUIP PROBLEM RADAR ARTS IIIA.

Narrative: ACR X WAS ON 2-3 MI FINAL TO RWY 32 AT SRQ. ENTIRE DATA TAG JUMPED TO A POINT 25 ENE OF SRQ (OUTSIDE TPA APCH AIRSPACE) FOR AT LEAST 1 FULL SWEEP, THEN JUMPED BACK ON A SHORT FINAL AT SRQ. THE ACFT WAS ABOUT 300-400 FT WHEN THE 'TAG' LEFT THE TARGET. THIS WAS RPTED TO MGMNT/AF VIA TPA FORM 6190-2.

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.