# SDR UIEA2013040400171

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 5, 2013
- Submitted: April 5, 2013
- Operation: Air carrier
- Aircraft: [N496MC](https://openairdocs.org/aircraft/N496MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29257
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Computer
- Part number: 8221261101
- Part serial: 1429232805
- Condition: Failed
- Stage of operation: CL
- How discovered: O
- Nature of condition: G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2013040400171

## Discrepancy

UNABLE TO ENGAGE ANY OF THE THREE AUTOPILOTS, CMC SHOWS AILERON SERVO C/FCC- C /FCC FAIL. R & R CENTER AND LEFT FCC IAW AMM 22-11-01-004-026.  PERFORMED CMC TEST ON CENTER AND LT FCC PASSED REF 22-11-01 ALSO PERFORMED AUTOLAND UNIQUE TEST PASSED.

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