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ZSE controller reported that an aircraft being tracked in eram was not properly tracking in the backup system ebus.
| Attributes | |
| ACN | 980792 |
| Time | |
| Date | 201111 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZSE.ARTCC |
| State Reference | WA |
| Aircraft 1 | |
| Make Model Name | Airliner 99 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Enroute |
| Qualification | Air Traffic Control Fully Certified |
| Events | |
| Anomaly | ATC Issue All Types |
Narrative:
Aircraft was tracking normally and within radar coverage. When I went to check ebus the same aircraft was showing a coast track. I then checked both a/B channels on eram and they were both tracking the aircraft with a good radar target but when going back to ebus the aircraft was still showing coast track. Eventually the aircraft tagged up in ebus. Advised sme (subject matter expert) about discrepancy and they didn't think that it was abnormal. Told another sme about it today and they thought is was abnormal and should have been tracking in both ebus and eram. I didn't save the strip/information based on what the first sme told me but will try to find it to add more accurate times to the report. Ebus should reflect an accurate image of eram channels in case we have to revert to ebus.
Original NASA ASRS Text
Title: ZSE Controller reported that an aircraft being tracked in ERAM was not properly tracking in the backup system EBUS.
Narrative: Aircraft was tracking normally and within radar coverage. When I went to check EBUS the same aircraft was showing a coast track. I then checked both A/B channels on ERAM and they were both tracking the aircraft with a good radar target but when going back to EBUS the aircraft was still showing coast track. Eventually the aircraft tagged up in EBUS. Advised SME (Subject Matter Expert) about discrepancy and they didn't think that it was abnormal. Told another SME about it today and they thought is was abnormal and should have been tracking in both EBUS and ERAM. I didn't save the strip/information based on what the first SME told me but will try to find it to add more accurate times to the report. EBUS should reflect an accurate image of ERAM channels in case we have to revert to EBUS.
Data retrieved from NASA's ASRS site as of April 2012 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.