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A320 flight crew reported loss of multiple systems apparently related to pitch trim malfunctions that resulted in reversion to alternate/direct law.
| Attributes | |
| ACN | 1587711 |
| Time | |
| Date | 201810 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Horizontal Stabilizer Trim |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
At cruise; got a status message 'cat 3 single only' inoperative systems 'cat 3 dual'. Moments later it cleared. Moments later; got an ECAM flight/control elac 1 pitch fault. Complied with our procedures and completed the ECAM. Its status message was the same: 'cat 3 single only' - inoperative systems 'cat 3 dual'. Next a/P 2 disengaged. We engaged a/P 1. Moments later; a/P1 disengaged. We started to hand fly the aircraft. Shortly thereafter we got ECAM flight/control elac 2 pitch fault. And complied with our procedures and completed the ECAM. Now we were in alternate law and knew we were going to land in direct law. We noticed the pitch trim was giving short bursts and realized that was what kicked the a/P off. At this point; we [asked for] the longest runway at [destination]. I tried calling dispatch and [operations] on the dispatch frequencies [listed in the manual] but it was too scratchy and [instead] used the arinc frequency dispatch ACARS'ed us. Approach and landing was uneventful.failure of elac systems.my first attempt was the new call app on our satellite equipped aircraft. It did not work. Then the dispatch frequencies in FM2. Had connection been better; communication with the dispatcher and [operations] would have occurred much quicker.
Original NASA ASRS Text
Title: A320 flight crew reported loss of multiple systems apparently related to pitch trim malfunctions that resulted in reversion to alternate/direct law.
Narrative: At cruise; got a status message 'Cat 3 single only' inoperative systems 'Cat 3 Dual'. Moments later it cleared. Moments later; got an ECAM FLT/CTL ELAC 1 PITCH FAULT. Complied with our procedures and completed the ECAM. Its status message was the same: 'Cat 3 single only' - inoperative systems 'Cat 3 Dual'. Next A/P 2 disengaged. We engaged A/P 1. Moments later; A/P1 disengaged. We started to hand fly the aircraft. Shortly thereafter we got ECAM FLT/CTL ELAC 2 PITCH FAULT. and complied with our procedures and completed the ECAM. Now we were in alternate law and knew we were going to land in direct law. We noticed the pitch trim was giving short bursts and realized that was what kicked the A/P off. At this point; we [asked for] the longest runway at [destination]. I tried calling Dispatch and [Operations] on the Dispatch frequencies [listed in the manual] but it was too scratchy and [instead] used the ARINC frequency dispatch ACARS'ed us. Approach and landing was uneventful.Failure of ELAC systems.My first attempt was the new call app on our satellite equipped aircraft. It did not work. Then the dispatch frequencies in FM2. Had connection been better; communication with the Dispatcher and [Operations] would have occurred much quicker.
Data retrieved from NASA's ASRS site 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.