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ZID ARTCC controller allowed a trailing aircraft to overtake a leading aircraft resulting in a loss of separation.
| Attributes | |
| ACN | 460387 |
| Time | |
| Date | 200001 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : ape.vortac |
| State Reference | OH |
| Altitude | msl bound lower : 24000 msl bound upper : 25000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : vacating altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : vacating altitude |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller military : 4 controller radar : 14 controller time certified in position1 : 12 |
| ASRS Report | 460387 |
| 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 | atc equipment : conflict alert |
| Miss Distance | horizontal : 21000 vertical : 100 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Air carrier X descending to land iln, air carrier Y on vector behind air carrier X slowed significantly on his own and when air carrier Y was turned on course he made an incredibly sharp turn and gained a significant amount of speed and ran over air carrier X.
Original NASA ASRS Text
Title: ZID ARTCC CTLR ALLOWED A TRAILING ACFT TO OVERTAKE A LEADING ACFT RESULTING IN A LOSS OF SEPARATION.
Narrative: ACR X DSNDING TO LAND ILN, ACR Y ON VECTOR BEHIND ACR X SLOWED SIGNIFICANTLY ON HIS OWN AND WHEN ACR Y WAS TURNED ON COURSE HE MADE AN INCREDIBLY SHARP TURN AND GAINED A SIGNIFICANT AMOUNT OF SPD AND RAN OVER ACR X.
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.