 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B747 captain reports the INS database identifies and locates the waypoint kyzyl as the kyzyl airport approximately 1200 NM away from the waypoint in their flight plan.
| Attributes | |
| ACN | 836962 |
| Time | |
| Date | 200905 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | EDFH.Airport |
| State Reference | FO |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | INS / IRS / IRU |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Flight Engineer Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 120 Flight Crew Total 22000 Flight Crew Type 8000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
The flight plan included a waypoint called kyzyl. The coordinates given on the flight plan and on the enroute chart match (N4015.0 E7206.0). The database in the INS; however; gives the coordinates N5135.4 E9412.4 which matches a russian city; VOR; and airport named kyzyl. The coordinates for the INS waypoint kyzyl needs to be corrected immediately. The kyzyl VOR/airport should be named kzl -- not kyzyl in the INS database. We identified this problem during preflight loading of the INS. Therefore; it did not cause a navigation error in our case. But the possibility remains for other crews to have a serious navigation error. This situation was identified to my employer in a crew report the day following the discovery. Because I am not aware of any corrective action taken by my employer; I now feel it necessary to also make a report to ASRS.
Original NASA ASRS Text
Title: B747 Captain reports the INS database identifies and locates the waypoint KYZYL as the KYZYL Airport approximately 1200 NM away from the waypoint in their flight plan.
Narrative: The flight plan included a waypoint called KYZYL. The coordinates given on the flight plan and on the enroute chart match (N4015.0 E7206.0). The database in the INS; however; gives the coordinates N5135.4 E9412.4 which matches a Russian city; VOR; and airport named Kyzyl. The coordinates for the INS waypoint KYZYL needs to be corrected immediately. The Kyzyl VOR/airport should be named KZL -- not KYZYL in the INS database. We identified this problem during preflight loading of the INS. Therefore; it did not cause a navigation error in our case. But the possibility remains for other crews to have a serious navigation error. This situation was identified to my employer in a crew report the day following the discovery. Because I am not aware of any corrective action taken by my employer; I now feel it necessary to also make a report to ASRS.
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.