|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : zla.airport|
|Affiliation||government : faa|
|Function||controller : radar|
|Qualification||controller : radar|
|Experience||controller radar : 30|
controller time certified in position1 : 20
|Independent Detector||other controllera|
|Resolutory Action||none taken : anomaly accepted|
|ATC Facility||other physical facility|
The nexrad WX displays more intense and larger areas of WX in an altitude filtered band than is seen in an unfiltered band. That is impossible. If it available is a smaller (filtered) band it has to be available unfiltered. Also the opposite has been observed where more intense and areas of WX are observed unfiltered that is not displayed in any other filtered band again impossible. There is no way to anyone to be able to validate what was on the controller's display at the time of an aircraft accident/incident.
Original NASA ASRS Text
Title: ZLA CTLR EXPRESSED CONCERN REGARDING NEXRAD WX EQUIP LIMITATIONS AND FUNCTIONALITY.
Narrative: THE NEXRAD WX DISPLAYS MORE INTENSE AND LARGER AREAS OF WX IN AN ALT FILTERED BAND THAN IS SEEN IN AN UNFILTERED BAND. THAT IS IMPOSSIBLE. IF IT AVAILABLE IS A SMALLER (FILTERED) BAND IT HAS TO BE AVAILABLE UNFILTERED. ALSO THE OPPOSITE HAS BEEN OBSERVED WHERE MORE INTENSE AND AREAS OF WX ARE OBSERVED UNFILTERED THAT IS NOT DISPLAYED IN ANY OTHER FILTERED BAND AGAIN IMPOSSIBLE. THERE IS NO WAY TO ANYONE TO BE ABLE TO VALIDATE WHAT WAS ON THE CTLR'S DISPLAY AT THE TIME OF AN ACFT ACCIDENT/INCIDENT.
Data retrieved from NASA's ASRS site as of January 2009 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.