# SDR AALA201711069001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 5, 2017
- Submitted: November 10, 2017
- Operation: Air carrier
- Aircraft: N344AN
- Make and model: Boeing 767323
- Aircraft serial: 33083
- Aircraft time: 56,269 hours, 9,094 cycles
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- Part: Relay
- Condition: Faulty
- Location: Air/Ground
- Stage of operation: CL
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201711069001

## Discrepancy

FLIGHT RETURNED TO DEPARTURE DUE TO OSCILLATION WITH BOTH YAW DAMPERS ENGAGED.  WITH THE RIGHT YAW DAMPER DE-SELECTED, THE OSCILLATION STOPPED.  EMERGENCY DECLARED. LANDING UNEVENTFUL, AND AIRCRAFT WAS GROUNDED.    REMOVED AND REPLACED AIR GROUND RELAY K199 (AALA20171105005) AND RELAY K293 PER FIM 22-21-00.  NO FAULTS NOTED.  OPERATIONAL CHECK GOOD.

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