 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A320 flight crew experiences dual FMGC failure during preparation for an ILS. The fmgcs are restored and reloaded; but the crew cannot get the autopilot to track the localizer or the glideslope. Crew diverts and attempt to use standby navigation ILS is unsuccessful. ASR approach to landing ensues.
| Attributes | |
| ACN | 911266 |
| Time | |
| Date | 201009 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.TRACON |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
On vector for final ILS; I proceeded to 'clean up flight plan'; [but] in that operation lost both fmgcs and got a 'set field elevation manually press fail' ECAM. Took vectors to work through problems. Set field elevation manually and restored fmgcs. Aircraft showed 'CAT 3 dual' with a good id; but never coupled [and] strayed off course; no glideslope. Performed go around and from QRH surmised unable to shoot CAT 1 to minimums required for weather conditions with the available equipment. In communication with dispatch; ZZZ had better than 1000/3 and we diverted to ZZZ.
Original NASA ASRS Text
Title: A320 flight crew experiences dual FMGC failure during preparation for an ILS. The FMGCs are restored and reloaded; but the crew cannot get the autopilot to track the LOC or the glideslope. Crew diverts and attempt to use standby NAV ILS is unsuccessful. ASR approach to landing ensues.
Narrative: On vector for final ILS; I proceeded to 'clean up flight plan'; [but] in that operation lost both FMGCs and got a 'set field elevation manually press fail' ECAM. Took vectors to work through problems. Set field elevation manually and restored FMGCs. Aircraft showed 'CAT 3 dual' with a good id; but never coupled [and] strayed off course; no glideslope. Performed go around and from QRH surmised unable to shoot CAT 1 to minimums required for weather conditions with the available equipment. In communication with Dispatch; ZZZ had better than 1000/3 and we diverted to ZZZ.
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.