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ZJX controller described near loss of separation when uret equipment displays incorrect routing leading to the conflict.
| Attributes | |
| ACN | 723389 |
| Time | |
| Date | 200611 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : vqq.vor |
| State Reference | FL |
| Altitude | msl bound lower : 34000 msl bound upper : 37000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zjx.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Experience | controller military : 3 controller non radar : 25 controller radar : 20 |
| ASRS Report | 723389 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | non adherence : required legal separation other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : took evasive action |
| Miss Distance | horizontal : 30000 vertical : 0 |
| Supplementary | |
| Problem Areas | ATC Human Performance Navigational Facility |
| Primary Problem | Navigational Facility |
Narrative:
B757 an mco departure to dtw. Aircraft filed mco..vqq..amg..irq (etc) dtw. Uret computer idents pref route mco..vqq.JAG3.irq./.dtw (route is not given). As aircraft transitions from one sector (R75) to another (R49) uret computer installs route which has not been given showing erroneous route/flight path to point out sector (R50) and receiving sector (R49) causing misident of possible traffic. Air carrier X checks on to R49 out of FL317 up to FL370 on shown flight plan this is clean. Sector has 22 data blocks an fpl on d-side r-side and tracker. At critical altitude 20 mi north of vqq air carrier X begins a 40 degree turn to left turning into air carrier Y at FL340 and air carrier Z at FL360. R49 controller (me) notices this and issues an expedited climb to clear air carrier Y and a 010 degree heading to air carrier X and then a 200 degree heading to air carrier Z. The automation computer incorrectly showed pref route.
Original NASA ASRS Text
Title: ZJX CTLR DESCRIBED NEAR LOSS OF SEPARATION WHEN URET EQUIP DISPLAYS INCORRECT ROUTING LEADING TO THE CONFLICT.
Narrative: B757 AN MCO DEP TO DTW. ACFT FILED MCO..VQQ..AMG..IRQ (ETC) DTW. URET COMPUTER IDENTS PREF RTE MCO..VQQ.JAG3.IRQ./.DTW (RTE IS NOT GIVEN). AS ACFT TRANSITIONS FROM ONE SECTOR (R75) TO ANOTHER (R49) URET COMPUTER INSTALLS RTE WHICH HAS NOT BEEN GIVEN SHOWING ERRONEOUS RTE/FLT PATH TO POINT OUT SECTOR (R50) AND RECEIVING SECTOR (R49) CAUSING MISIDENT OF POSSIBLE TFC. ACR X CHKS ON TO R49 OUT OF FL317 UP TO FL370 ON SHOWN FLT PLAN THIS IS CLEAN. SECTOR HAS 22 DATA BLOCKS AN FPL ON D-SIDE R-SIDE AND TRACKER. AT CRITICAL ALT 20 MI N OF VQQ ACR X BEGINS A 40 DEG TURN TO L TURNING INTO ACR Y AT FL340 AND ACR Z AT FL360. R49 CTLR (ME) NOTICES THIS AND ISSUES AN EXPEDITED CLB TO CLR ACR Y AND A 010 DEG HDG TO ACR X AND THEN A 200 DEG HDG TO ACR Z. THE AUTOMATION COMPUTER INCORRECTLY SHOWED PREF RTE.
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.