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Approach controller at dab lost the radar presentation from patrick AFB which required the use of non radar procedures with a military helicopter with inoperative transponder.
| Attributes | |
| ACN | 494105 |
| Time | |
| Date | 200012 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : dab.tracon |
| State Reference | FL |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dab.tracon |
| Operator | other |
| Make Model Name | Helicopter |
| 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 military : 4 controller non radar : 6 controller radar : 12 |
| ASRS Report | 494105 |
| Person 2 | |
| Function | controller : traffic management |
| Qualification | controller : radar |
| Experience | controller radar : 5 |
| ASRS Report | 494090 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera other controllerb other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
| Air Traffic Incident | Operational Error |
| Situations | |
| ATC Facility | radar equipment : dab.tracon |
| Airspace Structure | class c : dab.c class e : dab.e |
Narrative:
A helicopter IFR on flight plan at 4000 ft had an inoperable transponder. The loss of primary radar caused this aircraft to be controled under non radar procedures. This situation caused an increase in workload for all the additional position reports and coordination associated with the radar outage. Using backup radar (cenrap) should be a short-term solution and not a continuing solution. The use of center radar (cenrap) at dab approach control for the airspace associated with mlb and patrick AFB is used quite often because of poor primary radar presentation associated with the current patrick AFB radar system in use. Supplemental information from acn 494090: no separation was lost, but we had several aircraft that had to be terminated from radar service. The military was advised and they started to run test on the radar. This happens at least once a week. All service is greatly reduced to aircraft because of the extra separation that is required.
Original NASA ASRS Text
Title: APCH CTLR AT DAB LOST THE RADAR PRESENTATION FROM PATRICK AFB WHICH REQUIRED THE USE OF NON RADAR PROCS WITH A MIL HELI WITH INOP XPONDER.
Narrative: A HELI IFR ON FLT PLAN AT 4000 FT HAD AN INOPERABLE XPONDER. THE LOSS OF PRIMARY RADAR CAUSED THIS ACFT TO BE CTLED UNDER NON RADAR PROCS. THIS SIT CAUSED AN INCREASE IN WORKLOAD FOR ALL THE ADDITIONAL POS RPTS AND COORD ASSOCIATED WITH THE RADAR OUTAGE. USING BACKUP RADAR (CENRAP) SHOULD BE A SHORT-TERM SOLUTION AND NOT A CONTINUING SOLUTION. THE USE OF CTR RADAR (CENRAP) AT DAB APCH CTL FOR THE AIRSPACE ASSOCIATED WITH MLB AND PATRICK AFB IS USED QUITE OFTEN BECAUSE OF POOR PRIMARY RADAR PRESENTATION ASSOCIATED WITH THE CURRENT PATRICK AFB RADAR SYS IN USE. SUPPLEMENTAL INFO FROM ACN 494090: NO SEPARATION WAS LOST, BUT WE HAD SEVERAL ACFT THAT HAD TO BE TERMINATED FROM RADAR SVC. THE MIL WAS ADVISED AND THEY STARTED TO RUN TEST ON THE RADAR. THIS HAPPENS AT LEAST ONCE A WK. ALL SVC IS GREATLY REDUCED TO ACFT BECAUSE OF THE EXTRA SEPARATION THAT IS REQUIRED.
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.