# SDR ASAA2023101045536

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2023
- Submitted: October 12, 2023
- Operation: Air carrier
- Aircraft: [N486AS](https://openairdocs.org/aircraft/N486AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44107
- Aircraft time: 29,988 hours, 9,418 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Part number: 8221567104
- Part serial: 46R36K
- Condition: Malfunctioned
- Location: Flight Deck
- Part time: 29,997 hours, 9,421 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/ASAA2023101045536

## Discrepancy

MCP VERTICAL SPEED WINDOW HAS AREA OF BLEED THROUGH. GROUNDED - YES. (RESOLVED ON W/O: 1971902 TASKCARD: N/R-00003 ) REPLACED MCP REF AMM 22-11-34. OPS CHECK GOOD, LAND VERIFY TESTS SUCCESSFUL. THIE CLEARS MEL 22-16I. PLACARDS REMOVED, SEAMC DARWIN NOTIFIED.

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