# SDR DL76L020240

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2002
- Submitted: April 3, 2002
- Operation: Air carrier
- Aircraft: [N186DN](https://openairdocs.org/aircraft/N186DN), registered now
- Make and model: Boeing 767332
- Aircraft serial: 27962
- Aircraft time: 32,991 hours, 5,127 cycles
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Module
- Part number: 285T0014104
- Part serial: D02474
- Condition: Malfunctioned
- Location: E/E Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL76L020240

## Discrepancy

YELLOW RUDDER RATIO CAUTION MESSAGE ILLUMINATED TWICE MOMENTARILY.  NOTICED SLIGHT YAWING MOVEMENT ON CLIMBOUT BUT NOTHING IN CRUISE.  NO FAULTS LATCHED ON RUDDER RATIO MODULES OR SAM MODULES.  NO ECS FAULTS.  REPLACED RT RUDDER RATIO CHANGER MODULE PER MM.  ALL TEST OK.

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