Approach controller complaint about false WX information on his ASR 9 radar, cites clear WX and erroneous WX information degrading the aircraft targets. Maintenance says they can't fix the problem.

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Attributes
ACN	376511
Time
Date	199708
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mci
State Reference	MO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar pilot : instrument
Experience	controller non radar : 5 controller radar : 10 flight time total : 600
ASRS Report	376571
Person 2
Affiliation	government : faa
Function	other personnel other
Qualification	other other : other
Events
Anomaly	other anomaly other
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other
Situations
ATC Facility	other physical facility
Navigational Aid	Unspecified

Narrative:

The ASR 9 radar was showing 6 levels of WX. There was no WX in the area. Maintenance says there is no way to fix this problem. We must have the WX displayed on the radar scope and it degrades the true targets.

Original NASA ASRS Text

Title: APCH CTLR COMPLAINT ABOUT FALSE WX INFO ON HIS ASR 9 RADAR, CITES CLR WX AND ERRONEOUS WX INFO DEGRADING THE ACFT TARGETS. MAINT SAYS THEY CAN'T FIX THE PROB.

Narrative: THE ASR 9 RADAR WAS SHOWING 6 LEVELS OF WX. THERE WAS NO WX IN THE AREA. MAINT SAYS THERE IS NO WAY TO FIX THIS PROB. WE MUST HAVE THE WX DISPLAYED ON THE RADAR SCOPE AND IT DEGRADES THE TRUE TARGETS.

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.