# SDR 95ZZZX784

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N207AU](https://openairdocs.org/aircraft/N207AU), registered now
- Make and model: Boeing 737201
- Aircraft serial: 19423
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Yaw Damp Coupler
- Part number: 4030952902
- Condition: Malfunctioned
- Location: Autopilot
- Part time: 61,488 hours
- Stage of operation: AP
- Nature of condition: F
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX784

## Discrepancy

BZN - UPON APPROACH, AIRCRAFT STARTED TO YAW LEFT AND RIGHT AFTER SELECTING 40 DEGREE FLAP SETTING.  PILOT TURNED OFF YAW DAMPER AND YAW PROBLEM WAS CORRECTED.  PLACARDED PER MEL 22-3.  ON JANUARY 31, 1995, MAINTENANCE REPLACED YAW DAMPER COUPLER AND THE RUDDER PCU.  SYSTEM CHECKED OKAY.  REFERENCE CONTROL NR F3LA95004.

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