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Cvg controller experienced conflict alert at 10000 ft with opposite direction traffic believed to be a false target.
| Attributes | |
| ACN | 676034 |
| Time | |
| Date | 200510 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : cvg.airport |
| State Reference | OH |
| Altitude | msl single value : 10000 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Ice |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : cak.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller military : 4 controller radar : 20 |
| ASRS Report | 676034 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued alert controller : issued new clearance flight crew : took evasive action |
| Supplementary | |
| Problem Areas | FAA Maintenance Human Performance Navigational Facility |
| Primary Problem | Navigational Facility |
| Situations | |
| ATC Facility | radar equipment : cvg.tracon |
Narrative:
Air carrier X was inbound to cvg. I descended aircraft from 11000 ft to 10000 ft for runway 36C; and handed off aircraft; then switched to frequency 119.7. In about 10 mi; a target popped up opposite direction level at 10000 ft heading directly for air carrier X. Air carrier X was issued merging target procedures and climbed to 11000 ft. About 5 mi after traffic merged; the target disappeared. The false target was on the same beacon code. This was not known until after the traffic merged. At the time of the incident; all involved thought it was real; live traffic. False targets are getting more numerous at cvg. I consider this to be both hazardous and unsafe!
Original NASA ASRS Text
Title: CVG CTLR EXPERIENCED CONFLICT ALERT AT 10000 FT WITH OPPOSITE DIRECTION TFC BELIEVED TO BE A FALSE TARGET.
Narrative: ACR X WAS INBOUND TO CVG. I DSNDED ACFT FROM 11000 FT TO 10000 FT FOR RWY 36C; AND HANDED OFF ACFT; THEN SWITCHED TO FREQ 119.7. IN ABOUT 10 MI; A TARGET POPPED UP OPPOSITE DIRECTION LEVEL AT 10000 FT HEADING DIRECTLY FOR ACR X. ACR X WAS ISSUED MERGING TARGET PROCS AND CLBED TO 11000 FT. ABOUT 5 MI AFTER TFC MERGED; THE TARGET DISAPPEARED. THE FALSE TARGET WAS ON THE SAME BEACON CODE. THIS WAS NOT KNOWN UNTIL AFTER THE TFC MERGED. AT THE TIME OF THE INCIDENT; ALL INVOLVED THOUGHT IT WAS REAL; LIVE TFC. FALSE TARGETS ARE GETTING MORE NUMEROUS AT CVG. I CONSIDER THIS TO BE BOTH HAZARDOUS AND UNSAFE!
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.