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B757 crew flies to wrong position when cleared to a fix on FMS. The database had a known error in coordinates but flight crew failed to read the company NOTAM that had been issued.
| Attributes | |
| ACN | 365700 |
| Time | |
| Date | 199704 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : lin |
| State Reference | CA |
| Altitude | msl bound lower : 29000 msl bound upper : 29000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute airway : zoa |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 6000 flight time type : 300 |
| ASRS Report | 365700 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 12000 flight time type : 150 |
| ASRS Report | 365530 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : clearance non adherence : published procedure non adherence other other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
ATC cleared us to the lin 89 fix, so we used the FMC database LIN89. The database LIN89 coordinates are N3846.5/W11911.3 which is what we flew to. The LIN89 (LIN062089) coordinates ATC wanted us to fly to was N3820.6/W11909.2. These coordinates were on the flight plan, but not in the database correctly. Called dispatch and they are aware and have posted NOTAMS, but database has not been updated.
Original NASA ASRS Text
Title: B757 CREW FLIES TO WRONG POS WHEN CLRED TO A FIX ON FMS. THE DATABASE HAD A KNOWN ERROR IN COORDINATES BUT FLC FAILED TO READ THE COMPANY NOTAM THAT HAD BEEN ISSUED.
Narrative: ATC CLRED US TO THE LIN 89 FIX, SO WE USED THE FMC DATABASE LIN89. THE DATABASE LIN89 COORDINATES ARE N3846.5/W11911.3 WHICH IS WHAT WE FLEW TO. THE LIN89 (LIN062089) COORDINATES ATC WANTED US TO FLY TO WAS N3820.6/W11909.2. THESE COORDINATES WERE ON THE FLT PLAN, BUT NOT IN THE DATABASE CORRECTLY. CALLED DISPATCH AND THEY ARE AWARE AND HAVE POSTED NOTAMS, BUT DATABASE HAS NOT BEEN UPDATED.
Data retrieved from NASA's ASRS site as of July 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.