# SDR DALA2019051803108

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2019
- Submitted: May 20, 2019
- Operation: Air carrier
- Aircraft: [N194DN](https://openairdocs.org/aircraft/N194DN), registered now
- Make and model: Boeing 767332
- Aircraft serial: 28451
- Aircraft time: 98,526 hours, 14,311 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Unknown
- Condition: Malfunctioned
- Location: Autopilot Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2019051803108

## Discrepancy

SHIP 194 - ATB - CREW REPORTED OSCILLATIONS IN TAIL OF AIRCRAFT AND SUSPECTED RUDDER ISSUE. FOLLOWED QRH AND NO HELP. DECISION MADE TO RETURN TO LAX FOR MTC. CORRECTIVE ACTION: MTC PERFORMED YAW DAMP BITE AND NTF. MTC REPLACED RT YAW DAMP COMPUTER AS PRECAUTION AND PERFORMED TESTS 30 AND 40. ALL OPS CHECKS GOOD. LP 5051352

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