# SDR UIEA2016100900804

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2016
- Submitted: October 12, 2016
- Operation: Air carrier
- Aircraft: [N429MC](https://openairdocs.org/aircraft/N429MC), registered now
- Make and model: Boeing 747481
- Aircraft serial: 24833
- Aircraft time: 94,320 hours, 13,412 cycles
- System (JASC): [2721 · Rudder Tab Control System](https://openairdocs.org/jasc/2721)
- Part: Actuator
- Part number: 6013K000101
- Part serial: 99113289
- Condition: Malfunctioned
- Location: Rudder
- Stage of operation: CR
- How discovered: 9
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2016100900804

## Discrepancy

RUDDER RATIO MESSAGE.  R & R UPPER RUDDER RATIO CHANGER (ACTUATOR) IAW AMM 27-21-12. PERF BITE TEST, ALL PASSED SATISFACTORY, OPS & INDICATIONS OF RUDDER SYSTEM SATISFACTORY.

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