# SDR CALA2020021600435

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2020
- Submitted: February 16, 2020
- Operation: Air carrier
- Aircraft: [N663UA](https://openairdocs.org/aircraft/N663UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 27160
- Aircraft time: 109,956 hours, 17,046 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Warning Message
- Condition: False Activation
- Location: Rudder Ratio
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2020021600435

## Discrepancy

RUDDER RATIO EICAS ILLUMINATED MSG APPEARED AFTER GO AROUND ON MANCHESTER. IAW FIM 27-21 TASK 8 04 FLAG NO.5 THIS COULD BE A NUISANCE MESSAGE IN GUSTY WIND COND ITIONS. RESET MODULES. PERFORMED BITE IAW FIM 27-09-00-815-814 A ND TEST RUDDER RATION SYST IAW AMM 27-21-00-825-036-001. ALL SAT IS. DISCUSSED COMPLAINT WITH CONTROLLER GORMAN AND SENIOR MANAGER MC NEELY. THEY AGREED WITH THE MAINTENANCE ACTIONS.

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