# SDR SWIA200413057

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2004
- Submitted: March 22, 2004
- Operation: Air carrier
- Aircraft: [N224SW](https://openairdocs.org/aircraft/N224SW), registered now
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120294
- Aircraft time: 22,056 hours, 28,676 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Computer
- Part number: 6228315402
- Part serial: 2947
- Condition: Malfunctioned
- Location: Autopilot
- Part time: 4,800 hours, 6,269 cycles
- Stage of operation: NR
- 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/SWIA200413057

## Discrepancy

WHEN A/P ON CAPTAIN'S SIDE, OCCASIONALLY THE A/P WOULD INITIATE A CLIMB, THEN DESCENT ON ITS OWN.  A/P AURAL DID NOT COME ON, SEEMED LIKE AN ELEVATOR FLUCTUATION.  REPLACED NR 1 APC-65B IAW MM 22-10-02.  OPS CHECK GOOD IAW MM 22-10-00.  P/N: 622-8315-402, S/N ON: 2966, S/N OFF: 2947.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.