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A321 flight crew experiences dual FMGC failures during approach when 'no star' is used to clear unneeded waypoints during vectors. With CAT III approaches in use; the crew elects to divert to a nearby VMC alternate.
| Attributes | |
| ACN | 999045 |
| Time | |
| Date | 201203 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | A321 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Dual flight management guidance computer (FMGC) reset during base leg to CAT III ILS. Total loss of all flight plans and performance; delay vectors from ATC to evaluate. QRH procedures; because of CAT III weather conditions and unsure if we would recover the fmcg's; diverted to alternate where the weather was VFR. Thales FMS system programming that is to be fixed on the next FMS software release.
Original NASA ASRS Text
Title: A321 flight crew experiences dual FMGC failures during approach when 'No Star' is used to clear unneeded waypoints during vectors. With CAT III approaches in use; the crew elects to divert to a nearby VMC alternate.
Narrative: Dual Flight Management Guidance Computer (FMGC) reset during base leg to CAT III ILS. Total loss of all flight plans and performance; delay vectors from ATC to evaluate. QRH Procedures; because of CAT III weather conditions and unsure if we would recover the FMCG's; diverted to alternate where the weather was VFR. Thales FMS system programming that is to be fixed on the next FMS software release.
Data retrieved from NASA's ASRS site as of July 2013 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.