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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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ZOB controller experienced operational error at 17000 ft when corrective turns were insufficient to maintain separation.
| Attributes | |
| ACN | 670064 |
| Time | |
| Date | 200508 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : cxr.vor |
| State Reference | OH |
| Altitude | msl single value : 17000 |
| Environment | |
| Weather Elements | Rain |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air taxi |
| Make Model Name | CV 540 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | cruise : level |
| 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 |
| Flight Phase | descent : intermediate altitude descent : vacating altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 20 |
| ASRS Report | 670064 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued alert controller : issued new clearance |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 27600 vertical : 700 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
At 17000 ft was turned 25 degrees left for lateral separation from a descending aircraft Y. Additional turns were issued to prevent an error. It was questionable whether aircraft X took the full turn.
Original NASA ASRS Text
Title: ZOB CTLR EXPERIENCED OPERROR AT 17000 FT WHEN CORRECTIVE TURNS WERE INSUFFICIENT TO MAINTAIN SEPARATION.
Narrative: AT 17000 FT WAS TURNED 25 DEGS L FOR LATERAL SEPARATION FROM A DSNDING ACFT Y. ADDITIONAL TURNS WERE ISSUED TO PREVENT AN ERROR. IT WAS QUESTIONABLE WHETHER ACFT X TOOK THE FULL TURN.
Data retrieved from NASA's ASRS site as of January 2009 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.