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ARTCC radar controller had less than standard separation between air carrier Y and small transport X. System error.
| Attributes | |
| ACN | 121286 |
| Time | |
| Date | 198909 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : orl |
| State Reference | FL |
| Altitude | msl bound lower : 16000 msl bound upper : 23000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx |
| Make Model Name | Small Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 5 |
| ASRS Report | 121286 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 22500 vertical : 800 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I received a manual handoff on small transport X at 12000', tracking northeast. I took computer handoff on air carrier Y, widebody transport, at 12000' tracking north, due west of small transport X. I climbed small transport X to fl 230 and then climbed air carrier Y to FL230. I then received 2 handoffs north of daytona and made pointouts in order to climb them. Meanwhile air carrier Y turned toward small transport X, overtaking him rapidly. I observed air carrier Y at 16000', climbing to FL230. I observed small transport X at M3 climbing to FL230. I assigned air carrier Y 16000'. Air carrier Y acknowledged and descended back to 16000'.
Original NASA ASRS Text
Title: ARTCC RADAR CTLR HAD LESS THAN STANDARD SEPARATION BETWEEN ACR Y AND SMT X. SYSTEM ERROR.
Narrative: I RECEIVED A MANUAL HDOF ON SMT X AT 12000', TRACKING NE. I TOOK COMPUTER HDOF ON ACR Y, WDB, AT 12000' TRACKING N, DUE W OF SMT X. I CLBED SMT X TO FL 230 AND THEN CLBED ACR Y TO FL230. I THEN RECEIVED 2 HDOFS N OF DAYTONA AND MADE POINTOUTS IN ORDER TO CLB THEM. MEANWHILE ACR Y TURNED TOWARD SMT X, OVERTAKING HIM RAPIDLY. I OBSERVED ACR Y AT 16000', CLBING TO FL230. I OBSERVED SMT X AT M3 CLBING TO FL230. I ASSIGNED ACR Y 16000'. ACR Y ACKNOWLEDGED AND DSNDED BACK TO 16000'.
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.