# SDR SWIA972548

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2001
- Submitted: May 7, 2001
- Operation: Air carrier
- Aircraft: [N290SW](https://openairdocs.org/aircraft/N290SW), registered now
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120317
- Aircraft time: 12,069 hours, 17,331 cycles
- Engine: Pwa PW118B
- System (JASC): [2211 · Autopilot Computer](https://openairdocs.org/jasc/2211)
- Part: Computer
- Condition: Malfunctioned
- Location: Autopilot Sys
- Stage of operation: DE
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA972548

## Discrepancy

WHEN DISCONNECTING AUTOPILOT, AIRCRAFT INSTANTLY ROLLED HARD RIGHT.  REQUIRED AN UNUSUAL AMOUNT OF OPPOSING LEFT AILERON TRIM AND AIRCRAFT WAS SLOW TO RECOVER.  INSPECTED AUTO PILOT COMPUTER NR 2 RACK CONNECTOR AND WIRING.  NO DEFECTS NOTED.  REPLACED NR 2 APC-65 FOR TROUBLESHOOTING.  A/P OPS CHECKS GOOD IAW 22-10-00.  P/N ON 622-8315-402, S/N ON 3997, S/N OFF 1423.

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