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ZFW controller experienced operational error at 3000 when issuing approach clearance to an IFR aircraft that conflicted with antenna not depicted on radar display.
| Attributes | |
| ACN | 763384 |
| Time | |
| Date | 200711 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : byp.vortac |
| State Reference | TX |
| Altitude | msl single value : 3000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zfw.artcc |
| Operator | general aviation : corporate |
| Make Model Name | Beechjet 400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller military : 4 controller radar : 23 controller supervisory : 7 controller time certified in position1 : 2 |
| ASRS Report | 763384 |
| Events | |
| Anomaly | non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 22800 vertical : 300 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Minimum IFR altitude around a radio tower was not depicted on radar scope to keep aircraft clear. An aircraft was cleared for approach into an airport and came into close proximity to a radio tower not depicted on radar scope.
Original NASA ASRS Text
Title: ZFW CTLR EXPERIENCED OPERROR AT 3000 WHEN ISSUING APCH CLRNC TO AN IFR ACFT THAT CONFLICTED WITH ANTENNA NOT DEPICTED ON RADAR DISPLAY.
Narrative: MINIMUM IFR ALT AROUND A RADIO TWR WAS NOT DEPICTED ON RADAR SCOPE TO KEEP ACFT CLR. AN ACFT WAS CLRED FOR APCH INTO AN ARPT AND CAME INTO CLOSE PROX TO A RADIO TWR NOT DEPICTED ON RADAR SCOPE.
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.