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ZOB radar controller has conflict with converging traffic at FL290 and traffic at FL310 descending to FL280.
| Attributes | |
| ACN | 554370 |
| Time | |
| Date | 200207 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| State Reference | MI |
| Altitude | msl bound lower : 28000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : enroute altitude change |
| Route In Use | enroute airway : j34.airway |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller time certified in position1 : 12 |
| ASRS Report | 554370 |
| 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 other controllera other flight crewa other flight crewb |
| Resolutory Action | flight crew : took evasive action none taken : insufficient time |
| Miss Distance | horizontal : 21000 vertical : 700 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Air carrier X ord arrival at FL310 at lan swbound had converging traffic on J34 at FL310. Descended air carrier X to FL280 with air carrier Y flight sebound at FL290 direct to djb. Scan prior to descending or climbing any aircraft via their route.
Original NASA ASRS Text
Title: ZOB RADAR CTLR HAS CONFLICT WITH CONVERGING TFC AT FL290 AND TFC AT FL310 DSNDING TO FL280.
Narrative: ACR X ORD ARR AT FL310 AT LAN SWBOUND HAD CONVERGING TFC ON J34 AT FL310. DSNDED ACR X TO FL280 WITH ACR Y FLT SEBOUND AT FL290 DIRECT TO DJB. SCAN PRIOR TO DSNDING OR CLBING ANY ACFT VIA THEIR RTE.
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.