# SDR ASAA2020060132766

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 30, 2020
- Submitted: June 2, 2020
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 45,981 hours, 13,814 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Part number: 8221567102
- Part serial: 17YY1G
- Condition: Failed
- Location: Cockpit
- Part time: 32,237 hours, 10,096 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020060132766

## Discrepancy

A/P MODE CONTROL PANEL APPEARS TO BE STUCK IN TEST MODE.  ALL MODE SELECT SWITCHES & A/P ENGAGE SWITCHES ILLUMINATED.  UNABLE TO EXTINGUISH.  REPLACED MODE CONTROL PANEL IAW AMM 22-11-34.  DFCS BITE GROUPS 32 & 49 NORMAL.

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