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ZDC controller described user request evaluation tool (uret) failure; resulting in incorrect beacon code information.
| Attributes | |
| ACN | 776931 |
| Time | |
| Date | 200803 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zdc.artcc |
| State Reference | VA |
| Altitude | msl single value : 38000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| 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 radar : 17 controller time certified in position1 : 4.5 flight time total : 2000 |
| ASRS Report | 776931 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | Navigational Facility |
| Primary Problem | Navigational Facility |
Narrative:
Uret (primary flight plan information source for en route controllers) did not indicate that an aircraft was on the wrong beacon code. This can cause improper tracking of radar targets if not corrected. Aircraft X was on beacon code XXXX. The controller was able to detect this by the display in the full data block. The uret showed the beacon assigned code to be ZZZZ and was shown in white; which means the code is correct. The uret should have displayed XXXX in yellow; with an asterisk next to the code as a visual cue that there is information which the controller should be alerted to. After the controller accepted the handoff; the uret display changed to show XXXX in yellow and an asterisk was displayed. The malfunctions are: incorrect display of information and changed information after the controller accepts the handoff.
Original NASA ASRS Text
Title: ZDC CTLR DESCRIBED USER REQUEST EVALUATION TOOL (URET) FAILURE; RESULTING IN INCORRECT BEACON CODE INFO.
Narrative: URET (PRIMARY FLT PLAN INFO SOURCE FOR ENRTE CTLRS) DID NOT INDICATE THAT AN ACFT WAS ON THE WRONG BEACON CODE. THIS CAN CAUSE IMPROPER TRACKING OF RADAR TARGETS IF NOT CORRECTED. ACFT X WAS ON BEACON CODE XXXX. THE CTLR WAS ABLE TO DETECT THIS BY THE DISPLAY IN THE FULL DATA BLOCK. THE URET SHOWED THE BEACON ASSIGNED CODE TO BE ZZZZ AND WAS SHOWN IN WHITE; WHICH MEANS THE CODE IS CORRECT. THE URET SHOULD HAVE DISPLAYED XXXX IN YELLOW; WITH AN ASTERISK NEXT TO THE CODE AS A VISUAL CUE THAT THERE IS INFO WHICH THE CTLR SHOULD BE ALERTED TO. AFTER THE CTLR ACCEPTED THE HDOF; THE URET DISPLAY CHANGED TO SHOW XXXX IN YELLOW AND AN ASTERISK WAS DISPLAYED. THE MALFUNCTIONS ARE: INCORRECT DISPLAY OF INFO AND CHANGED INFO AFTER THE CTLR ACCEPTS THE HDOF.
Data retrieved from NASA's ASRS site as of May 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.