# SDR AWXA9900317

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 15, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N312AW
- Make and model: Boeing 737-3S3
- Registry model: [Boeing 737-3S3](https://openairdocs.org/model/boeing-737-3s3) (OpenAirDocs)
- Aircraft serial: 24060
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Yaw Coupler
- Part number: 4030952
- Condition: Failed
- Location: Auto Pilot
- Part time: 40,038 hours
- Stage of operation: CL
- Nature of condition: F
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AWXA9900317

## Discrepancy

LATERAL SIDE MOTION WAS NOTICED IN AIRFRAME NO CHANGE WITH AUTO PILOT, PMCS, AND YAW DAMPNER OFF.  REMOVED AND REPLACED YAW DAMPNER COUPLER, MEL CLEARED.

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