# SDR AALA202209082146

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2022
- Submitted: September 8, 2022
- Operation: Air carrier
- Aircraft: [N722US](https://openairdocs.org/aircraft/N722US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1097
- Aircraft time: 61,423 hours, 36,340 cycles
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Solenoid Valve
- Condition: None
- Location: Zone 300 - Stabs
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202209082146

## Discrepancy

AIRCRAFT WAS GROUNDED: AIRCRAFT PITCHED UP AND DOWN EXCESSIVELY AT CRUISE ALTITUDE WITH AUTOPILOT ENGAGED, AUTOPILOT ONE AND TWO. PITCHED OSCILLATION BETWEEN 40 - 100 FPM. **SUPPLEMENTAL REPORT FOR AALA202209022146: MAINTENANCE REPLACED SOLENOID VALVE ON LEFT HAND GREEN ELEVATOR SERVO CONTROL ACTUATOR PER AMM 27-34-51. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.  ** (CLOSED)

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