# SDR ASAA2020032432493

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 2020
- Submitted: April 1, 2020
- Operation: Air carrier
- Aircraft: [N563AS](https://openairdocs.org/aircraft/N563AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35180
- Aircraft time: 50,816 hours, 15,084 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Actuator
- Part number: 158300101
- Part serial: 18073
- Condition: Failed
- Location: Autopilot Sys
- Part time: 50,929 hours, 15,112 cycles
- Stage of operation: NR
- 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/ASAA2020032432493

## Discrepancy

AUTOPILOT B WILL NOT CONNECT. GROUNDED - YES. REMOVED AND REPLACED ELEV A/P B ACTUATOR REF B737-800 AMM 22-11-26. LEAK CHECK GOOD. AUTOPILOT ELEVATOR ACTUATOR ADJUSTMENT AND TEST PASSED REF AMM 22-11-216-820-801. NO ADJUSTMENTS MADE. AUROPILOT ELEVATOR ACTUATOR TEST GOOD REF AMM 22-11-26-710-801. REMOVED AND REPLACED ELEV A/P B ACTUATOR HYDRAULIC SWITCH REF AMM 22-11-40. INSTALLATION TEST GOOD.  ALL LLM TESTS PASSED REF EXTENDED MAINT BITE GROUP #60 AMM 22-11-26/501.

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