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Hcf approach controller expressed concern regarding radar transponder coverage with light aircraft in certain areas.
| Attributes | |
| ACN | 687931 |
| Time | |
| Date | 200602 |
| Place | |
| Locale Reference | atc facility : hcf.tracon |
| State Reference | HI |
| Altitude | msl bound upper : 6000 |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller limited radar : 21 controller non radar : 21 controller radar : 21 controller supervisory : 0.5 controller time certified in position1 : 4.5 |
| ASRS Report | 687931 |
| Events | |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | Navigational Facility FAA |
| Primary Problem | Navigational Facility |
Narrative:
C208's inbound to hnl from the southeast (julle intersection) will disappear off the radar scope and then appear as a small DOT or primary target. The computer system; mearts; will stop tracking the aircraft and; depending on how busy the controller is; the aircraft could be temporarily forgotten. This becomes hazardous when multiple aircraft are descending in the area and the beacon and/or target disappear. Newer controllers not aware of this shortcoming might not recognize the aircraft is not displayed. This is also prominent west of hnl depending on the aircraft attitude toward the radar antenna.
Original NASA ASRS Text
Title: HCF APCH CTLR EXPRESSED CONCERN REGARDING RADAR XPONDER COVERAGE WITH LIGHT ACFT IN CERTAIN AREAS.
Narrative: C208'S INBOUND TO HNL FROM THE SE (JULLE INTXN) WILL DISAPPEAR OFF THE RADAR SCOPE AND THEN APPEAR AS A SMALL DOT OR PRIMARY TARGET. THE COMPUTER SYS; MEARTS; WILL STOP TRACKING THE ACFT AND; DEPENDING ON HOW BUSY THE CTLR IS; THE ACFT COULD BE TEMPORARILY FORGOTTEN. THIS BECOMES HAZARDOUS WHEN MULTIPLE ACFT ARE DSNDING IN THE AREA AND THE BEACON AND/OR TARGET DISAPPEAR. NEWER CTLRS NOT AWARE OF THIS SHORTCOMING MIGHT NOT RECOGNIZE THE ACFT IS NOT DISPLAYED. THIS IS ALSO PROMINENT W OF HNL DEPENDING ON THE ACFT ATTITUDE TOWARD THE RADAR ANTENNA.
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.