# SDR ASAA2023101745703

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2023
- Submitted: October 20, 2023
- Operation: Air carrier
- Aircraft: [N512AS](https://openairdocs.org/aircraft/N512AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39043
- Aircraft time: 54,335 hours, 16,084 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Control Panel
- Part number: 8221567102
- Part serial: 17HGVV
- Condition: Faulty
- Location: Flight Compartme
- Part time: 44,704 hours, 16,944 cycles
- Stage of operation: LD
- 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/ASAA2023101745703

## Discrepancy

"B" - 2ND AUTO PILOT FAILED TO ENGAGE DURING ATTEMPTED AUTOLAND APPROACH. GROUNDED - YES. (RESOLVED ON W/O: 1973033 TASKCARD: N/R-00002 ) REMOVED AND REPLACED MCP PER AMM 22-11-34.ALL LLM TESTS C/W. NO FAULTS NOTED. REMOVED PLACARD. REMOVED MEL'S 22-1F AND 22-99B. SEAMC DAVE NOTIFIED.

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