# SDR 96UAL900418

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N305UA](https://openairdocs.org/aircraft/N305UA), registered now
- Make and model: Boeing 737322
- Aircraft serial: 23666
- Engine: Ge CFM56*
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Coupler
- Part number: 4030952906
- Condition: Failed
- Location: E/E Compt
- Stage of operation: CR
- Nature of condition: E, F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96UAL900418

## Discrepancy

SEVERAL UNCOMMANDED RUDDER MOVEMENTS, DESCENDED TO LOWER ALTITUDE.  *S/D*  YAW COUPLER WAS REPLACED.  SHOP FOUND YAW COUPLER RATE GYRO FAULTY, CHECKS OK.

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