# SDR ASAA12511556

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 11, 2012
- Submitted: May 18, 2012
- Operation: Air carrier
- Aircraft: [N594AS](https://openairdocs.org/aircraft/N594AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35191
- Aircraft time: 15,817 hours, 4,938 cycles
- Engine: Cfmint CFM567B273
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Part number: 8221567102AS
- Part serial: 171MMO
- Condition: Inoperative
- Location: Cockpit
- Part time: 15,907 hours, 4,965 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA12511556

## Discrepancy

F/O WINDOW IS BLANK ON MODE CONTROL PANEL.  ACFT GROUNDED.  REPLACED DFCS MODE CONTROL PANEL REF MM 22-11-34-400 801. OPS NORMAL. PERFORMED ADDITIONAL TEST REF LAMP CHECK LIST MM 22-00-01-730-801, BG 32 DFCS LRU FOR MCP BG 49 LAND VERIFY TEST & HGS SENSOR FOR FCC/AT IAW MM 34-36-00.  ALL TEST PASSED.

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