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Controller claims that ctring and de-ctring the radar scope causes aircraft data tags to move off the scope.
| Attributes | |
| ACN | 253240 |
| Time | |
| Date | 199310 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : stl |
| State Reference | MO |
| Altitude | msl bound lower : 8000 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors enroute airway : stl |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 2 |
| ASRS Report | 253240 |
| 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 other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Navigational Facility |
| Air Traffic Incident | other |
| Situations | |
| Navigational Aid | Unspecified |
Narrative:
I overheard the arrival north controller descending an aircraft. I had all of his aircraft 'supposedly' displayed and had all of his airspace displayed. I observed no tracked target on my scope. I looked at his scope and verified the aircraft was northwest and tagged on his scope. I observed a primary and beacon on my scope, but not a data tag. I advised the supervisor of the condition. The supervisor said to center the scope and de-center again. This allowed for the aircraft to tag properly. If I had been busy and hadn't noticed that his aircraft wasn't tagged, we could have had a near miss or worse. My recommendation is to fix the radar.
Original NASA ASRS Text
Title: CTLR CLAIMS THAT CTRING AND DE-CTRING THE RADAR SCOPE CAUSES ACFT DATA TAGS TO MOVE OFF THE SCOPE.
Narrative: I OVERHEARD THE ARR N CTLR DSNDING AN ACFT. I HAD ALL OF HIS ACFT 'SUPPOSEDLY' DISPLAYED AND HAD ALL OF HIS AIRSPACE DISPLAYED. I OBSERVED NO TRACKED TARGET ON MY SCOPE. I LOOKED AT HIS SCOPE AND VERIFIED THE ACFT WAS NW AND TAGGED ON HIS SCOPE. I OBSERVED A PRIMARY AND BEACON ON MY SCOPE, BUT NOT A DATA TAG. I ADVISED THE SUPVR OF THE CONDITION. THE SUPVR SAID TO CTR THE SCOPE AND DE-CTR AGAIN. THIS ALLOWED FOR THE ACFT TO TAG PROPERLY. IF I HAD BEEN BUSY AND HADN'T NOTICED THAT HIS ACFT WASN'T TAGGED, WE COULD HAVE HAD A NEAR MISS OR WORSE. MY RECOMMENDATION IS TO FIX THE RADAR.
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.