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ZOB associate controller alerts radar controller to conflict, who's actions are not sufficiently timely to stop the loss of separation.
| Attributes | |
| ACN | 533108 |
| Time | |
| Date | 200112 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | intersection : flint |
| State Reference | MI |
| Altitude | msl single value : 32500 |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller military : 7 controller radar : 11 |
| ASRS Report | 533108 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : handoff position |
| 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 | none taken : insufficient time |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 28800 vertical : 1600 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
In an oversight, I descended an aircraft through the altitude of another. My d-side brought the oversight to my attention. I stopped the descent of the one and descended the other, but it was not in time to avoid the loss of separation.
Original NASA ASRS Text
Title: ZOB ASSOCIATE CTLR ALERTS RADAR CTLR TO CONFLICT, WHO'S ACTIONS ARE NOT SUFFICIENTLY TIMELY TO STOP THE LOSS OF SEPARATION.
Narrative: IN AN OVERSIGHT, I DSNDED AN ACFT THROUGH THE ALT OF ANOTHER. MY D-SIDE BROUGHT THE OVERSIGHT TO MY ATTN. I STOPPED THE DSCNT OF THE ONE AND DSNDED THE OTHER, BUT IT WAS NOT IN TIME TO AVOID THE LOSS OF SEPARATION.
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.