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While descending on an arrival; both A320 fmgcs failed causing lost precision and non-navigation data; so an emergency was declared followed by a visual approach. The rmp frequency and course were set; but the glideslope appeared unreliable and the only ECAM displayed was cabin press.
| Attributes | |
| ACN | 1082012 |
| Time | |
| Date | 201304 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | Pilot Flying Captain |
| Experience | Flight Crew Last 90 Days 95 Flight Crew Total 11600 Flight Crew Type 8500 |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Experience | Flight Crew Last 90 Days 150 Flight Crew Total 10000 Flight Crew Type 3500 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Approximately 60 NM west if our destination at approximately 15;000 ft; we lost all data from both fmgcs. We tried unsuccessfully to restore any or all data; leaving us with no traditional electronic navigation. We had good ADI information; complete with speed; vsi and altitude information. Because of the late arrival and long duty day; coupled with the potential for complications; I elected to declare an emergency with approach control. We received a heading direct to the airport and flew a visual approach. We were able to use stand-by navigation for ILS information and good PAPI information. The approach and landing was otherwise uneventful. Company dispatch; maintenance and flight operations duty manager were notified.
Original NASA ASRS Text
Title: While descending on an arrival; both A320 FMGCs failed causing lost precision and non-navigation data; so an emergency was declared followed by a visual approach. The RMP frequency and course were set; but the glideslope appeared unreliable and the only ECAM displayed was CABIN PRESS.
Narrative: Approximately 60 NM west if our destination at approximately 15;000 FT; we lost all data from both FMGCs. We tried unsuccessfully to restore any or all data; leaving us with no traditional electronic navigation. We had good ADI information; complete with speed; VSI and altitude information. Because of the late arrival and long duty day; coupled with the potential for complications; I elected to declare an emergency with Approach Control. We received a heading direct to the airport and flew a visual approach. We were able to use stand-by navigation for ILS information and good PAPI information. The approach and landing was otherwise uneventful. Company Dispatch; Maintenance and Flight Operations Duty Manager were notified.
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.