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ZOB controller issues turns to descending B738 which does not maintain separation from en route E145.
| Attributes | |
| ACN | 532457 |
| Time | |
| Date | 200112 |
| Day | Thu |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | navaid : djb.vortac |
| State Reference | OH |
| Altitude | msl bound lower : 35000 msl bound upper : 37000 |
| Environment | |
| Weather Elements | Turbulence |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : enroute altitude change |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 20 |
| ASRS Report | 532457 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 16800 vertical : 1400 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Descended aircraft X from FL370 to FL330. Another aircraft Y swbound at FL350. Turned first aircraft to etg to keep south. Wasn't enough. After seeing loss of separation occurring, turned both aircraft, climbed one, descended the other.
Original NASA ASRS Text
Title: ZOB CTLR ISSUES TURNS TO DSNDING B738 WHICH DOES NOT MAINTAIN SEPARATION FROM ENRTE E145.
Narrative: DSNDED ACFT X FROM FL370 TO FL330. ANOTHER ACFT Y SWBOUND AT FL350. TURNED FIRST ACFT TO ETG TO KEEP S. WASN'T ENOUGH. AFTER SEEING LOSS OF SEPARATION OCCURRING, TURNED BOTH ACFT, CLBED ONE, DSNDED THE OTHER.
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.