# SDR P5CA9600215

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N853FT
- Make and model: Boeing 747122
- Aircraft serial: 19753
- System (JASC): [2720 · Rudder Control System](https://openairdocs.org/jasc/2720)
- Part: Control Unit
- Part number: 6905F
- Condition: Failed
- Location: Rudder
- Stage of operation: TX
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA9600215

## Discrepancy

AIRCRAFT RETURNED TO BLOCKS DUE TO RUDDER RATIO LIGHT ILLUMINATED.  LOWER RUDDER STAYED IN HIGH-SPEED MODE.  REMOVED AND REPLACED LOWER RUDDER RATIO CONTROL UNIT IAW MM 27-21-13.

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