# SDR ASAA2021011033861

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 2021
- Submitted: January 13, 2021
- Operation: Air carrier
- Aircraft: [N562AS](https://openairdocs.org/aircraft/N562AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35091
- Aircraft time: 52,914 hours, 15,689 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Display
- Condition: Inoperative
- Location: Cockpit
- Part time: 68,984 hours, 28,924 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/ASAA2021011033861

## Discrepancy

AFDS HEADING SELECT WINDOW MIDDLE DIGIT UNREADABLE.  GROUNDED-YES.  REMOVED AND REPLACED DFCS MCP.  RESET 9 C/B.  INSTALL TEST GOOD.  ALL REQUIRED LLM TESTS PASSED, REF B737-800 AMM 22-11-34.  THIS CLEARS MEL 22-16H CN AND PLACARD REMOVED.  SEAMC MARK NOTIFIED.

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