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ARTCC radar controller had less than standard separation with large transport climbing through altitude of mlt.
| Attributes | |
| ACN | 89003 |
| Time | |
| Date | 198806 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : atl |
| State Reference | GA |
| Altitude | msl bound lower : 29000 msl bound upper : 30000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl artcc : zbw |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Military Transport |
| Flight Phase | cruise other descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 89003 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 24000 vertical : 1000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I climbed the large transport X from FL280 to FL370 and he overtook the mlt Y (at FL290). When I saw I was losing sep I turned the large transport X right 25 degrees and descended the mlt Y from FL290 to FL270. The closest proximity was 4 mi and 1000'.
Original NASA ASRS Text
Title: ARTCC RADAR CTLR HAD LESS THAN STANDARD SEPARATION WITH LGT CLIMBING THROUGH ALT OF MLT.
Narrative: I CLBED THE LGT X FROM FL280 TO FL370 AND HE OVERTOOK THE MLT Y (AT FL290). WHEN I SAW I WAS LOSING SEP I TURNED THE LGT X RIGHT 25 DEGS AND DSNDED THE MLT Y FROM FL290 TO FL270. THE CLOSEST PROX WAS 4 MI AND 1000'.
Data retrieved from NASA's ASRS site as of August 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.