# SDR SWIA201334861

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2013
- Submitted: October 11, 2013
- Operation: Air carrier
- Aircraft: [N813SK](https://openairdocs.org/aircraft/N813SK), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15099
- Aircraft time: 18,944 hours, 11,455 cycles
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Ahrs
- Condition: Failed
- Location: Nr 2
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA201334861

## Discrepancy

AT FL 380 AIRCRAFT YAWED RT THEN LT SEVERAL TIMES UNCOMMANDED.  DESCENDED TO FL 280 & DISCONNECTED BOTH YAW DAMPERS.  WITH YAW DAMPERS DISCONNECTED AIRCRAFT YAWED LT & RT UNCOMMANDED TWICE MORE BEFORE LANDING BOTH QUICKLY 2 SEC OSCILLATION & SLOWLY 5 SEC OSCILLATION.  YAWING CAUSED AP TRIM LWD CAUTION WHEN AP WAS STILL ENGAGED AT CRUISE.  FLT#4695 REPLACED NR 2 AHRS COMPUTER & YAW DAMPER ACTUATOR IAW AMM, PN ON OFF 622-9336-400, SN ON 2280C, SN OFF 4F5Y.

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