# SDR ASAA2013052294873

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2013
- Submitted: May 25, 2013
- Operation: Air carrier
- Aircraft: [N589AS](https://openairdocs.org/aircraft/N589AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35686
- Aircraft time: 21,022 hours, 6,541 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Switch
- Part number: 721101A1
- Condition: Inoperative
- Location: Autopilot
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013052294873

## Discrepancy

AUTOPILOT B WILL NOT ENGAGE IN CMD OR CWS.  ACFT GROUNDED.  REF WDM 22-11-12 FOUND F/OS S232 A/P DISC SWITCH INOP.  REPLACED S232 SWITCH REF MM 22-11-41, OPS CHECK NORMAL.

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