# SDR ASAA2023011241498

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2023
- Submitted: January 21, 2023
- Operation: Air carrier
- Aircraft: [N941AK](https://openairdocs.org/aircraft/N941AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44101
- Aircraft time: 1,478 hours, 450 cycles
- Engine: Cfmint LEAP1B28
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Autopilot Sys
- Condition: Faulted
- Location: B System
- Stage of operation: CL
- 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/ASAA2023011241498

## Discrepancy

A/P B WOULD NOT ENGAGE DURING CLIMB OR CRUISE. FO DOES HAVE F/D BUT CANNOT GET MA. A/P A WORKS. GROUNDED - YES. PERFORMED LAND VERIFY IAW AMM 22-11-00-700-801 LAND VERIFY PASSED. ALL LLM TEST PASSED . NO ACTIVE DFCS FAULTS FOUND.  ORIG SUBMISSION DATE:  1/17/2023

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