# SDR ASAA2013062095240

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 2013
- Submitted: June 25, 2013
- Operation: Air carrier
- Aircraft: [N583AS](https://openairdocs.org/aircraft/N583AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35681
- Aircraft time: 22,683 hours, 6,745 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Part number: 4082260939AS
- Part serial: 00072175
- Condition: Inoperative
- Location: Auto Pilot
- Part time: 39,185 hours, 19,081 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013062095240

## Discrepancy

AUTOPILOT COMMAND B BUTTON WILL NOT ILLUMINATE AUTOPILOT FUNCTIONS NORMALLY.  ACFT GROUNDED. REPLACED MASTER CONTROL PANEL IAW AMM TASK 22-11-34-400-801/22-11-34-000-801. PERFORMED MASTER CONTROL PANEL INSTALLATION TEST IAW AMM TASK 22-11-34-74-801.

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