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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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South departure controller took pointout on a DA20, an overflt at 4000 ft, then lost the aircraft as it passed over the antenna. The departure controller climbed a BA31 to 5000 ft and the approach controller questioned the departure controller who then reclred the BA31 to 3000 ft, but not before separation was lost.
| Attributes | |
| ACN | 355250 |
| Time | |
| Date | 199612 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : stl |
| State Reference | MO |
| Altitude | msl bound lower : 3000 msl bound upper : 3500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : stl |
| Operator | common carrier : air carrier |
| Make Model Name | Jetstream 31 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Falcon 20FJF/20C/20D/20E/20F |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Experience | controller non radar : 5 controller radar : 5 |
| ASRS Report | 355250 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was working departure south. Departure north pointed out an aircraft 30 mi northeast of stl going over the top of the airport at 4000 ft. I was working about 5 or 6 aircraft. A BA31 departed and I climbed him to 5000 ft. I turned him to a 240 degree heading. (I believe the pointout was over the antenna at this moment and dropped for a few sweeps.) the low altitude controller was working the DA20 at this time and asked what the BA31 was doing. I immediately descended him to 3000 ft, he was at 3500 ft. He said he saw the traffic and I climbed him back to 5000 ft. The low altitude controller had also turned the DA20 to avoid a conflict.
Original NASA ASRS Text
Title: S DEP CTLR TOOK POINTOUT ON A DA20, AN OVERFLT AT 4000 FT, THEN LOST THE ACFT AS IT PASSED OVER THE ANTENNA. THE DEP CTLR CLBED A BA31 TO 5000 FT AND THE APCH CTLR QUESTIONED THE DEP CTLR WHO THEN RECLRED THE BA31 TO 3000 FT, BUT NOT BEFORE SEPARATION WAS LOST.
Narrative: I WAS WORKING DEP S. DEP N POINTED OUT AN ACFT 30 MI NE OF STL GOING OVER THE TOP OF THE ARPT AT 4000 FT. I WAS WORKING ABOUT 5 OR 6 ACFT. A BA31 DEPARTED AND I CLBED HIM TO 5000 FT. I TURNED HIM TO A 240 DEG HDG. (I BELIEVE THE POINTOUT WAS OVER THE ANTENNA AT THIS MOMENT AND DROPPED FOR A FEW SWEEPS.) THE LOW ALT CTLR WAS WORKING THE DA20 AT THIS TIME AND ASKED WHAT THE BA31 WAS DOING. I IMMEDIATELY DSNDED HIM TO 3000 FT, HE WAS AT 3500 FT. HE SAID HE SAW THE TFC AND I CLBED HIM BACK TO 5000 FT. THE LOW ALT CTLR HAD ALSO TURNED THE DA20 TO AVOID A CONFLICT.
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.