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ZMA controller experienced operational error at FL360 when attempting to vector one aircraft clear of another; but failed to insure adequate lateral separation.
| Attributes | |
| ACN | 684871 |
| Time | |
| Date | 200601 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zma.artcc |
| State Reference | FL |
| Altitude | msl single value : 36000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zma.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A310 |
| 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 limited radar : 12 controller non radar : 12 controller radar : 12 |
| ASRS Report | 684871 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : investigated |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
The r-side sector 59 controller called with a pointout of aircraft X at XA37Z. I said 'pointout approved.' I climbed aircraft Y to FL360 from FL320 at XA40Z. At XA47Z sector 59 called to say that they were descending aircraft X to FL350 for aircraft Y. I turned aircraft Y 40 degrees to the right to make sure aircraft Y would stay separated from aircraft X. Afterwards; I turned aircraft Y on course. The conflict alert never activated and I did not know that separation was even less than 5 mi.
Original NASA ASRS Text
Title: ZMA CTLR EXPERIENCED OPERROR AT FL360 WHEN ATTEMPTING TO VECTOR ONE ACFT CLR OF ANOTHER; BUT FAILED TO INSURE ADEQUATE LATERAL SEPARATION.
Narrative: THE R-SIDE SECTOR 59 CTLR CALLED WITH A POINTOUT OF ACFT X AT XA37Z. I SAID 'POINTOUT APPROVED.' I CLBED ACFT Y TO FL360 FROM FL320 AT XA40Z. AT XA47Z SECTOR 59 CALLED TO SAY THAT THEY WERE DSNDING ACFT X TO FL350 FOR ACFT Y. I TURNED ACFT Y 40 DEGS TO THE R TO MAKE SURE ACFT Y WOULD STAY SEPARATED FROM ACFT X. AFTERWARDS; I TURNED ACFT Y ON COURSE. THE CONFLICT ALERT NEVER ACTIVATED AND I DID NOT KNOW THAT SEPARATION WAS EVEN LESS THAN 5 MI.
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.