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ZTL controller experienced a loss of separation at FL240 during WX deviations; complicated by data block manipulations by other than the reporter.
| Attributes | |
| ACN | 708892 |
| Time | |
| Date | 200608 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : atl.airport |
| State Reference | GA |
| Altitude | msl single value : 24000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl.artcc tower : zzz.tower |
| Operator | general aviation : personal |
| Make Model Name | Falcon 50 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 708892 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : captain oversight : pic |
| 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 |
| Miss Distance | horizontal : 27000 vertical : 200 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
I took a handoff on aircraft X with fourth line data telling me he was deviating for WX. I shipped air carrier Y to the high altitude sector. I turned aircraft X 10 degrees right and descended him. Unbeknownst to me; aircraft X turned toward csg and his fourth line data was removed by someone other than me. I turned aircraft X to a 270 degree heading; but that was not enough to stop the loss of separation.
Original NASA ASRS Text
Title: ZTL CTLR EXPERIENCED A LOSS OF SEPARATION AT FL240 DURING WX DEVS; COMPLICATED BY DATA BLOCK MANIPULATIONS BY OTHER THAN THE RPTR.
Narrative: I TOOK A HDOF ON ACFT X WITH FOURTH LINE DATA TELLING ME HE WAS DEVIATING FOR WX. I SHIPPED ACR Y TO THE HIGH ALT SECTOR. I TURNED ACFT X 10 DEGS R AND DSNDED HIM. UNBEKNOWNST TO ME; ACFT X TURNED TOWARD CSG AND HIS FOURTH LINE DATA WAS REMOVED BY SOMEONE OTHER THAN ME. I TURNED ACFT X TO A 270 DEG HDG; BUT THAT WAS NOT ENOUGH TO STOP THE LOSS OF 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.