# SDR ASAA2014033107379

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 2014
- Submitted: April 3, 2014
- Operation: Air carrier
- Aircraft: [N587AS](https://openairdocs.org/aircraft/N587AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35684
- Aircraft time: 24,715 hours, 7,230 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/ASAA2014033107379

## Discrepancy

MODE CONTROL PANEL IS BLANK.  ACFT GROUNDED.  CYCLED MCP DC1 AND DC2 CIRCUIT BREAKERS.  MCP RETURNED TO NORMAL. NO HISTORY.  MODE CONTROL PANEL BITES NORMAL IAW GRP 32-22-11-34/501.  LAND VERIFY TESTS NORMAL BITE GRP 49 22-11-00/201.  HGS SENSOR TEST NORMAL REF 34-36-00.  ACFT REMAINS CAT 3A AUTOLAND AND HGS QUALIFIED, STATUS PLACARD CHECKED.  GROUND VERIFICATION SUCCESSFUL.

---
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.