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Enroute controller described a loss of separation event when an adjacent facility controller turned an aircraft into a previously transferred aircraft.
| Attributes | |
| ACN | 979850 |
| Time | |
| Date | 201111 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Person 1 | |
| Function | Enroute Handoff / Assist |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy |
Narrative:
We received a large string of departures. We were working an E145 which was descending to 15;000 from the neighboring center because approach own up to 14;000. He had a B757 departing south bound climbing to FL230. The neighboring center called me for a point-out on the d-side; telling me they were going to turn the B757 behind the E145 and give the B737 direct once they had passed each other. I said that's fine; he is 'point out approved'. I did not reference the E145 because he had referenced him and said he was going to give him a vector behind the traffic (E145). However; the neighboring center sector turned the B757 left into the E145 causing a loss of separation. The radar controller I was working with immediately expedited the E145 to get him through the B757 which was climbing. I am not sure if the neighboring center tried or did use visual separation. It also looked as if the E145 he gave us was floating it down; missing any restriction the neighboring center may have given him or should have given him. The incident happened in another sector. We were only talking to the E145. If the neighboring center controller would have turned the aircraft to a 190 or 200 heading they could have easily have swapped out; because they were about 30 miles apart from each and the E145 was descending on about a 200 to 220 heading.
Original NASA ASRS Text
Title: Enroute Controller described a loss of separation event when an adjacent facility controller turned an aircraft into a previously transferred aircraft.
Narrative: We received a large string of departures. We were working an E145 which was descending to 15;000 from the neighboring Center because Approach own up to 14;000. He had a B757 departing south bound climbing to FL230. The neighboring Center called me for a POINT-OUT on the D-Side; telling me they were going to turn the B757 behind the E145 and give the B737 direct once they had passed each other. I said that's fine; he is 'point out approved'. I did not reference the E145 because he had referenced him and said he was going to give him a vector behind the traffic (E145). However; the neighboring Center Sector turned the B757 left into the E145 causing a loss of separation. The RADAR Controller I was working with immediately expedited the E145 to get him through the B757 which was climbing. I am not sure if the neighboring Center tried or did use visual separation. It also looked as if the E145 he gave us was floating it down; missing any restriction the neighboring Center may have given him or should have given him. The incident happened in another Sector. We were only talking to the E145. If the neighboring Center Controller would have turned the aircraft to a 190 or 200 heading they could have easily have swapped out; because they were about 30 miles apart from each and the E145 was descending on about a 200 to 220 heading.
Data retrieved from NASA's ASRS site as of April 2012 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.