# SDR AALA201510309012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2015
- Submitted: October 30, 2015
- Operation: Air carrier
- Aircraft: [N188US](https://openairdocs.org/aircraft/N188US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1724
- Aircraft time: 46,196 hours, 17,201 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Yaw Damper
- Part number: SC47004
- Part serial: 3795
- Condition: Defective
- Location: Autopilot Sys
- Part time: 46,196 hours, 17,201 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201510309012

## Discrepancy

NON-COMMANDED RUDDER INPUT WITH AUTOPILOT ON AT FL280.  REPLACED NR 2 YAW DAMPER SERVO ACTUATOR.  ACCOMPLISHED A SATISFACTORY LEAK & OPERATIONAL CHECK IAW AMM 27-26-51-400-001-A & 22-63-00-710-001-A.

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