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ARTCC radar controller vectoring large transport around small transport and descending the aircraft through the small transport altitude, had less than standard separation.
| Attributes | |
| ACN | 93831 |
| Time | |
| Date | 198809 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : dan |
| State Reference | VA |
| Altitude | msl bound lower : 18000 msl bound upper : 18000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | general aviation : corporate |
| Make Model Name | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 18 |
| ASRS Report | 93881 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified |
| Resolutory Action | other |
| Consequence | Other |
| Miss Distance | horizontal : 25200 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Turn was issued to large transport Y to go around small transport X. It was not quite enough only provided 4.2 mi of sep.
Original NASA ASRS Text
Title: ARTCC RADAR CTLR VECTORING LGT AROUND SMT AND DESCENDING THE ACFT THROUGH THE SMT ALT, HAD LESS THAN STANDARD SEPARATION.
Narrative: TURN WAS ISSUED TO LGT Y TO GO AROUND SMT X. IT WAS NOT QUITE ENOUGH ONLY PROVIDED 4.2 MI OF SEP.
Data retrieved from NASA's ASRS site as of August 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.