# SDR ASAA2016042716581

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 27, 2016
- Submitted: May 3, 2016
- Operation: Air carrier
- Aircraft: [N581AS](https://openairdocs.org/aircraft/N581AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35188
- Aircraft time: 34,616 hours, 10,467 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Part number: 8221567102
- Part serial: 17YXYK
- Condition: Failed
- Part time: 20,333 hours, 7,472 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/ASAA2016042716581

## Discrepancy

ONE BULB INOPERATIVE IN AUTOPILOT A "CMD" BUTTON.  ACFT GROUNDED.  REPLACED DFCS MCP IAW AMM 22-11-34-400-801 OPENED.  OPS CK OK IAW AMM 22-11-34-740-801.  PERFORMED TESTS FOR MCP REPLACEMENT IAW AMM 22-00-01-730-801.  ACCOMPLISHED BITE GROUP NR 32 AND 49 LAND VERIFY. ALL TESTS PASS & HGS SENSOR TEST FOR FCC/AT, REF AMM 34-36-00 TEST PASSED.

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