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Approach controller was descending a DC10 into the same descent holding pattern as an embraer, EMB120.
| Attributes | |
| ACN | 469353 |
| Time | |
| Date | 200004 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Altitude | msl bound lower : 11000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : o90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude descent : holding |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : o90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Brasilia EMB-120 All Series |
| Operating Under FAR Part | Part 119 |
| Flight Phase | descent : holding |
| Flight Plan | IFR |
| Person 1 | |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 18 |
| ASRS Report | 469353 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne critical non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : separated traffic |
| Miss Distance | horizontal : 16500 vertical : 700 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Descending in holding pattern from 12000 ft to 11000 ft. E120 was already at 11000 ft in holding pattern area.
Original NASA ASRS Text
Title: APCH CTLR WAS DSNDING A DC10 INTO THE SAME DSCNT HOLDING PATTERN AS AN EMBRAER, EMB120.
Narrative: DSNDING IN HOLDING PATTERN FROM 12000 FT TO 11000 FT. E120 WAS ALREADY AT 11000 FT IN HOLDING PATTERN AREA.
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.