# SDR CA970401002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Servo Valve
- Part number: 7319603
- Condition: Erratic
- Location: Elevator
- Stage of operation: CR
- Nature of condition: E, F
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA970401002

## Discrepancy

(CAN) THE AIRCRAFT WHEN TURNING LEFT OR ROLLING BACK TO LEVEL FLIGHT EXPERIENCED A STEADY CONSTANT SOUND PITCH AND FREQUENCY VIBRATION FROM RIGHT AILERON INPUT ONLY AND NO SPOILER DEPLOYMENT. MAINTENANCE TROUBLE SHOOTING REVEALED GREEN ELEVATOR SERVO ACTUATOR OSCILLATING IN NEUTRAL AND FULL DEFLECTION POSITIONS. REPLACED GREEN SERVO CONTROL ACTUATOR SOLENOID.

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