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While descending a B737, the ZID radar controller overlooked a regional jet in cruise at a lower altitude resulting in a loss of separation.
| Attributes | |
| ACN | 561957 |
| Time | |
| Date | 200210 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ind.airport |
| State Reference | IN |
| Altitude | msl single value : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, 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 : 11 controller radar : 13 |
| ASRS Report | 561957 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | atc equipment : conflict alert aircraft equipment : tcas |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 13500 vertical : 1100 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Was working radar. Busy session, military airspace active increasing workload. Tried to descend aircraft to meet LOA. Overlooked aircraft below him.
Original NASA ASRS Text
Title: WHILE DSNDING A B737, THE ZID RADAR CTLR OVERLOOKED A REGIONAL JET IN CRUISE AT A LOWER ALT RESULTING IN A LOSS OF SEPARATION.
Narrative: WAS WORKING RADAR. BUSY SESSION, MIL AIRSPACE ACTIVE INCREASING WORKLOAD. TRIED TO DSND ACFT TO MEET LOA. OVERLOOKED ACFT BELOW HIM.
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.