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ZOB controller experienced operational error at FL300 when late handoff on crossing traffic required corrective action but action failed to maintain separation.
| Attributes | |
| ACN | 736603 |
| Time | |
| Date | 200704 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : jhw.vor |
| State Reference | NY |
| Altitude | msl single value : 30000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : combined radar |
| Qualification | controller : radar |
| Experience | controller radar : 2 |
| ASRS Report | 736603 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued alert controller : issued new clearance |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 28800 vertical : 800 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
The sector handing me aircraft was 2 position combined; and was too busy to separate the 2 crossing aircraft at FL300. The handoff on the second aircraft involved was late. I believe additional staffing would have prevented this occurrence. I took corrective action on first contact with both aircraft -- 30 degree turns; climb and descent. Ended up with 4.794 and 800 ft separation.
Original NASA ASRS Text
Title: ZOB CTLR EXPERIENCED OPERROR AT FL300 WHEN LATE HDOF ON CROSSING TFC REQUIRED CORRECTIVE ACTION BUT ACTION FAILED TO MAINTAIN SEPARATION.
Narrative: THE SECTOR HANDING ME ACFT WAS 2 POS COMBINED; AND WAS TOO BUSY TO SEPARATE THE 2 XING ACFT AT FL300. THE HDOF ON THE SECOND ACFT INVOLVED WAS LATE. I BELIEVE ADDITIONAL STAFFING WOULD HAVE PREVENTED THIS OCCURRENCE. I TOOK CORRECTIVE ACTION ON FIRST CONTACT WITH BOTH ACFT -- 30 DEG TURNS; CLB AND DSCNT. ENDED UP WITH 4.794 AND 800 FT SEPARATION.
Data retrieved from NASA's ASRS site as of January 2009 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.