# SDR 96UAL900417

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N9016U
- Make and model: Boeing 737222
- Aircraft serial: 19054
- Engine: Pwa JT8D7B
- System (JASC): [2211 · Autopilot Computer](https://openairdocs.org/jasc/2211)
- Part: Computer
- Part number: 2588812901MOD
- Condition: Corroded
- Location: E/E Compt
- Stage of operation: CR
- Nature of condition: P, O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/96UAL900417

## Discrepancy

YAW DAMPER ABRUPTLY MOVES RUDDER INTERMITTENTLY FOR NO APPARENT REASON.  *S/D*  REPLACED YAW COUPLER AND VERTICAL GYRO.  FOUND CORROSION ON COMPUTER CONTACTS.  REPLACED ROLL COMPUTER, CHECKS OK.

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