# SDR SWIA200616652

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2006
- Submitted: May 2, 2006
- Operation: Air carrier
- Aircraft: [N718SK](https://openairdocs.org/aircraft/N718SK), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10184
- Aircraft time: 3,705 hours, 2,430 cycles
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Computer
- Part number: 6229336400
- Part serial: 1LW9X
- Condition: Malfunctioned
- Location: Ahrs
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA200616652

## Discrepancy

IN CRUISE, AIRCRAFT WOULD YAW TO LEFT UNCOMMANDED SEVERAL TIMES.  MDC INDICATES NO FAULT HISTORIES, FCC DIAGNOSTICS INDICATE YD-SVO IN REPAIR CODES FROM FCC1.  SUSPECT AHC NR 1 INVALID INPUT TO FCC1.  REPLACED NR 1 AHC (AHRS) REF AMM 34-21-01.  OPERATIONAL CHECK GOOD.

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