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Less than standard separation occurred between an inbound aircraft at FL240 and an outbound aircraft climbing unrestricted.
| Attributes | |
| ACN | 161242 |
| Time | |
| Date | 199010 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : clt |
| State Reference | NC |
| Altitude | msl bound lower : 24000 msl bound upper : 24000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tower : phx |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | enroute airway : zdc |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 20400 flight time type : 18000 |
| ASRS Report | 161242 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | atc equipment other atc equipment : unspecified |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : reviewed incident with flight crew faa : investigated |
| Miss Distance | horizontal : 15000 vertical : 300 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
At 24000' cruise, I believe, established on majic arrival into clt. While making a passenger announcement, first officer disconnected autoplt abruptly and began a steer turn to the right. Took passenger announcement phone away from my ear and heard ATC frantically instructing our flight to turn right and another flight to also turn right. I responded, then ATC requested us to turn further right to heading 360 degrees. Another voice (ATC) came on radio instructed us to turn back to left to reintercept course. Requested center phone #. Arrival at clt called ZDC. Spoke to manager on duty. He advised they were in training environment and conflicting aircraft had been climbing slower than expected and had entered our airspace (2.5 mi, 300').
Original NASA ASRS Text
Title: LESS THAN STANDARD SEPARATION OCCURRED BETWEEN AN INBOUND ACFT AT FL240 AND AN OUTBOUND ACFT CLIMBING UNRESTRICTED.
Narrative: AT 24000' CRUISE, I BELIEVE, ESTABLISHED ON MAJIC ARR INTO CLT. WHILE MAKING A PAX ANNOUNCEMENT, F/O DISCONNECTED AUTOPLT ABRUPTLY AND BEGAN A STEER TURN TO THE RIGHT. TOOK PAX ANNOUNCEMENT PHONE AWAY FROM MY EAR AND HEARD ATC FRANTICALLY INSTRUCTING OUR FLT TO TURN RIGHT AND ANOTHER FLT TO ALSO TURN RIGHT. I RESPONDED, THEN ATC REQUESTED US TO TURN FURTHER RIGHT TO HDG 360 DEGS. ANOTHER VOICE (ATC) CAME ON RADIO INSTRUCTED US TO TURN BACK TO LEFT TO REINTERCEPT COURSE. REQUESTED CENTER PHONE #. ARR AT CLT CALLED ZDC. SPOKE TO MGR ON DUTY. HE ADVISED THEY WERE IN TRNING ENVIRONMENT AND CONFLICTING ACFT HAD BEEN CLBING SLOWER THAN EXPECTED AND HAD ENTERED OUR AIRSPACE (2.5 MI, 300').
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.