# SDR IPXA2018041628640

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2018
- Submitted: April 16, 2018
- Operation: Air carrier
- Aircraft: [N323UP](https://openairdocs.org/aircraft/N323UP), registered now
- Make and model: Boeing 767-34AF
- Registry model: [Boeing 767-34AF](https://openairdocs.org/model/boeing-767-34af) (OpenAirDocs)
- Aircraft serial: 27749
- Aircraft time: 53,742 hours, 17,368 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Module
- Condition: Faulted
- Location: Rudder Ratio
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2018041628640

## Discrepancy

AIR TURNBACK. AFTER TAKEOFF, THE RUDDER RATIO EICAS ILLUMINATED.  FOUND THE RIGHT RUDDER RATIO CHANGER MODULE FAULTED.  R & R THE MODULE IAW MM 27-09-00.  OPS CHECKED GOOD IAW MM 27-21-00.

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