|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : stl|
|Operator||general aviation : personal|
|Make Model Name||Any Unknown or Unlisted Aircraft Manufacturer|
|Flight Phase||cruise other|
|Affiliation||government : faa|
|Function||other personnel other|
|Qualification||controller : radar|
|Function||flight crew : single pilot|
|Qualification||pilot : instrument|
|Anomaly||other anomaly other|
|Independent Detector||other controllera|
|Resolutory Action||none taken : unable|
|Primary Problem||ATC Human Performance|
|Air Traffic Incident||other|
|ATC Facility||other physical facility|
I wrote you just a few days ago detailing some problems we are having with the ASR-9. Since I wrote you and filed an ucr the staff has put out the enclosed 'note to all personnel' dated 5/92. They make no mention of cancelling or superseding notice stl ATCT N7110.123, but I guess that is another matter for someone else to pursue. I should also mention since I last wrote that we lost all primary targets in our airspace for 3 sweeps on both the X and xy of may. I know that the occurrence on the X was logged on the 7230-4. Controllers are now starting to forward information on problems with the radar to me. One such occasion was on 5/X/92. A controller working low altitude lost the primary target of nga X. This aircraft was at 4000 ft on the 194 radial off lambert at 45 mi. Obviously this isn't a severe safety problem, but I feel it does point out the deficiency of the ASR-9. We have always had problems with the radar south of lambert at 45 mi. Most of it goes unrpted because controllers have become accustomed to it.
Original NASA ASRS Text
Title: CTLR RPTR COMPLAINS ABOUT ASR-9 SYS AND LOSING ALL PRIMARY TARGETS.
Narrative: I WROTE YOU JUST A FEW DAYS AGO DETAILING SOME PROBLEMS WE ARE HAVING WITH THE ASR-9. SINCE I WROTE YOU AND FILED AN UCR THE STAFF HAS PUT OUT THE ENCLOSED 'NOTE TO ALL PERSONNEL' DATED 5/92. THEY MAKE NO MENTION OF CANCELLING OR SUPERSEDING NOTICE STL ATCT N7110.123, BUT I GUESS THAT IS ANOTHER MATTER FOR SOMEONE ELSE TO PURSUE. I SHOULD ALSO MENTION SINCE I LAST WROTE THAT WE LOST ALL PRIMARY TARGETS IN OUR AIRSPACE FOR 3 SWEEPS ON BOTH THE X AND XY OF MAY. I KNOW THAT THE OCCURRENCE ON THE X WAS LOGGED ON THE 7230-4. CTLRS ARE NOW STARTING TO FORWARD INFO ON PROBLEMS WITH THE RADAR TO ME. ONE SUCH OCCASION WAS ON 5/X/92. A CTLR WORKING LOW ALT LOST THE PRIMARY TARGET OF NGA X. THIS ACFT WAS AT 4000 FT ON THE 194 RADIAL OFF LAMBERT AT 45 MI. OBVIOUSLY THIS ISN'T A SEVERE SAFETY PROBLEM, BUT I FEEL IT DOES POINT OUT THE DEFICIENCY OF THE ASR-9. WE HAVE ALWAYS HAD PROBLEMS WITH THE RADAR S OF LAMBERT AT 45 MI. MOST OF IT GOES UNRPTED BECAUSE CTLRS HAVE BECOME ACCUSTOMED TO IT.
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.