# SDR ASAA2015032511117

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2015
- Submitted: March 27, 2015
- Operation: Air carrier
- Aircraft: [N402AS](https://openairdocs.org/aircraft/N402AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41189
- Aircraft time: 9,252 hours, 2,982 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: TX
- 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/ASAA2015032511117

## Discrepancy

MCP DIGITS DO NOT DISPLAY, EVEN WITH "LIGHTS TEST" SELECTED.  ACFT GROUNDED. CYCLED CB'S FOR MCP, P18-1, D5, MCP, DC1 AND P6-2, C3, MCP DC2 AND DIGITS DISPLAYED. PERFORMED MCP INSTALLATION TEST IAW MM 22-11-34.  ALL TESTS PASSED.  NO HISTORY 30 DAYS.  GROUND VERIFICATION SUCCESSFUL.

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