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ZTL controller issues turn from other observed traffic in potential conflict with B757 under his control.
| Attributes | |
| ACN | 466660 |
| Time | |
| Date | 200003 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : ztl.artcc |
| State Reference | GA |
| Altitude | msl single value : 29000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : ztl.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise : level |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 466660 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : far non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance controller : separated traffic flight crew : took evasive action |
| Consequence | faa : investigated faa : reviewed incident with flight crew |
| Miss Distance | vertical : 0 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Airspace Structure |
| Primary Problem | Flight Crew Human Performance |
Narrative:
We were at FL290 near atlanta when ATC gave us a 40-60 degree turn for traffic. He said that he had an aircraft at our 12 O'clock position and he was not sure what his altitude was. The copilot began the turn and in the turn we got the TCASII warning. On the TCASII screen the offending aircraft was at our altitude and very close in. The RA required a 4000-6000 FPM rate of climb. I disconnected the autoplt and we initiated a climb. We climbed to FL310 and resolved the conflict. Later the watch supervisor at ZTL confirmed the offending traffic was at our altitude.
Original NASA ASRS Text
Title: ZTL CTLR ISSUES TURN FROM OTHER OBSERVED TFC IN POTENTIAL CONFLICT WITH B757 UNDER HIS CTL.
Narrative: WE WERE AT FL290 NEAR ATLANTA WHEN ATC GAVE US A 40-60 DEG TURN FOR TFC. HE SAID THAT HE HAD AN ACFT AT OUR 12 O'CLOCK POS AND HE WAS NOT SURE WHAT HIS ALT WAS. THE COPLT BEGAN THE TURN AND IN THE TURN WE GOT THE TCASII WARNING. ON THE TCASII SCREEN THE OFFENDING ACFT WAS AT OUR ALT AND VERY CLOSE IN. THE RA REQUIRED A 4000-6000 FPM RATE OF CLB. I DISCONNECTED THE AUTOPLT AND WE INITIATED A CLB. WE CLBED TO FL310 AND RESOLVED THE CONFLICT. LATER THE WATCH SUPVR AT ZTL CONFIRMED THE OFFENDING TFC WAS AT OUR ALT.
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.