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Sct controller involved in operational error believing situation caused by dropped data tag over radar main bang.
| Attributes | |
| ACN | 473274 |
| Time | |
| Date | 200005 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : sli.vortac |
| State Reference | CA |
| Altitude | msl single value : 5000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | general aviation : personal |
| Make Model Name | Baron 55/Cochise |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller limited radar : 5 controller military : 4 controller non radar : 2 controller radar : 14 controller time certified in position1 : 13 |
| ASRS Report | 473274 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 6000 vertical : 200 |
| Supplementary | |
| Problem Areas | ATC Facility ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
| Situations | |
| ATC Facility | radar equipment : sct.tracon |
Narrative:
The existence of the main bang near sli contributed to a loss of separation at 5000 ft over disneyland. If the aircraft's data tag had not disappeared from my radar display, I believe this situation would not have occurred.
Original NASA ASRS Text
Title: SCT CTLR INVOLVED IN OPERROR BELIEVING SIT CAUSED BY DROPPED DATA TAG OVER RADAR MAIN BANG.
Narrative: THE EXISTENCE OF THE MAIN BANG NEAR SLI CONTRIBUTED TO A LOSS OF SEPARATION AT 5000 FT OVER DISNEYLAND. IF THE ACFT'S DATA TAG HAD NOT DISAPPEARED FROM MY RADAR DISPLAY, I BELIEVE THIS SIT WOULD NOT HAVE OCCURRED.
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.