# SDR HALA0600894

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2006
- Submitted: December 4, 2006
- Operation: Air carrier
- Aircraft: [N581HA](https://openairdocs.org/aircraft/N581HA), registered now
- Make and model: Boeing 767-33A
- Registry model: [Boeing 767-33A](https://openairdocs.org/model/boeing-767-33a) (OpenAirDocs)
- Aircraft serial: 28141
- Aircraft time: 18,232 hours, 3,578 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Yaw Damper
- Part number: 285T0013126
- Part serial: D02498
- Condition: Leaking
- Part time: 11,710 hours, 2,253 cycles
- Stage of operation: CR
- How discovered: V
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA0600894

## Discrepancy

ATB LEFT YAW DAMPNER INOP LIGHT ILLUMINATED.  REMOVED AND REPLACED LT YAW DAMPNER SERVO, ASSY PER AMM 22-21-02 CONDITION SAME.  REPLACED LT YAW DAMP MODULE, FAULT STILL ACTIVE.  REPLACED RT YAW DAMP MODULE PER AMM 22-21-04-414-007 FAULT CLEARED, OPS CHECK OKAY.

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