# SDR ASAA2018052624815

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2018
- Submitted: May 29, 2018
- Operation: Air carrier
- Aircraft: [N568AS](https://openairdocs.org/aircraft/N568AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35183
- Aircraft time: 43,298 hours, 13,168 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Condition: Locked
- 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/ASAA2018052624815

## Discrepancy

MODE CONTROL PANEL ALTITUDE WINDOW IS LOCKED UP. ALL OTHER WINDOWS OPERATE NORMALLY. GROUNDED - YES. SUSPECT MCP LOCKED IN MAINT BITE. POWERED A/C DOWN. POWERED A/C UP. OPS CHECK DFCS MCP GOOD. REF AMM 22-11034. NO HISTORY 60 DAYS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.