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Secondary radar system (transponder) has numerous false targets. Targets jump and false targets ring around.
| Attributes | |
| ACN | 175059 |
| Time | |
| Date | 199104 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : abq |
| State Reference | NM |
| Aircraft 1 | |
| Controlling Facilities | tracon : abq |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| ASRS Report | 175059 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | other physical facility |
Narrative:
Secondary radar system at abq ATC tower were continuously failing to operate satisfactorily during this time period. Radar controllers have observed numerous false targets, 'ring around,' 'running rabbits,' and target jumps while using both beacon channel. Air traffic controllers have issued traffic alerts and turns to aircraft based on beacon targets that turned out to be false. FAA arwys facility personnel have been advised of the problem. This is an unsafe situation for all users at abq. Outside assistance has been requested.
Original NASA ASRS Text
Title: SECONDARY RADAR SYSTEM (TRANSPONDER) HAS NUMEROUS FALSE TARGETS. TARGETS JUMP AND FALSE TARGETS RING AROUND.
Narrative: SECONDARY RADAR SYS AT ABQ ATC TWR WERE CONTINUOUSLY FAILING TO OPERATE SATISFACTORILY DURING THIS TIME PERIOD. RADAR CTLRS HAVE OBSERVED NUMEROUS FALSE TARGETS, 'RING AROUND,' 'RUNNING RABBITS,' AND TARGET JUMPS WHILE USING BOTH BEACON CHANNEL. AIR TFC CTLRS HAVE ISSUED TFC ALERTS AND TURNS TO ACFT BASED ON BEACON TARGETS THAT TURNED OUT TO BE FALSE. FAA ARWYS FAC PERSONNEL HAVE BEEN ADVISED OF THE PROB. THIS IS AN UNSAFE SITUATION FOR ALL USERS AT ABQ. OUTSIDE ASSISTANCE HAS BEEN REQUESTED.
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.