# SDR ASAA2016121919099

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2016
- Submitted: December 21, 2016
- Operation: Air carrier
- Aircraft: [N538AS](https://openairdocs.org/aircraft/N538AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 41188
- Aircraft time: 18,051 hours, 5,271 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Part number: 8221567102
- Part serial: 403CH1
- Condition: Failed
- Location: Cockpit
- Part time: 18,062 hours, 5,273 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016121919099

## Discrepancy

VERTICAL DISPLAY ON MCP LIT SEGMENT IS BAD. GROUNDED - YES. REMOVED AND REPLACED MCP, REF AMM 22-11-34, OPS CHECK NORMAL .ACCOMPLISHED MCP LWMP CHECKS, REF LWMP CHECKLIST AMM 22-00-01, ALL TEST PASSED. A/C REMAINS CAT IIIA AUTOLAND & HGS, VERIFIED STATUS SCREW POSITION.

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