# SDR ASAA2018060924991

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2018
- Submitted: June 12, 2018
- Operation: Air carrier
- Aircraft: [N562AS](https://openairdocs.org/aircraft/N562AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35091
- Aircraft time: 45,168 hours, 13,445 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Part number: 4082260939
- Condition: Malfunctioned
- Location: Cockpit
- 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/ASAA2018060924991

## Discrepancy

MCP IAS/MACH KNOB WILL NOT CHANGE AIRSPEED NUMBER. IT IS FROZEN. GROUNDED - YES. RESET MCP C/B'S REF AMM 22-11-34, IAS WINDOW OPERATED NORMALLY & THEN FAILED AGAIN AFTER MCP TEST. REMOVED & REPLACED MODE CONTROL PANEL PER AMM 22-11-34, INSTALL TEST PASSED.  REMOVED UNIT IS S/N 31019090.

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