# SDR ASAA2016031715995

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2016
- Submitted: March 21, 2016
- Operation: Air carrier
- Aircraft: [N557AS](https://openairdocs.org/aircraft/N557AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35176
- Aircraft time: 37,378 hours, 11,027 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Autopilot Sys
- Condition: Malfunctioned
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016031715995

## Discrepancy

ON RECALL FLT CONTINUED AND SPEED TRIM FAIL LIGHT ILLUMINATE.  AUTOPILOTS A AND B WILL NOT ENGAGE.  ACFT GROUNDED.  MOVED A/P STABILIZER TRIM CUTOUT SWITCH TO NORMAL. PERFORMED DFCS BITE REF FIM TASK 22-11, TASK 801.  TEST PASSED.  NO FURTHER FAULTS FOUND.

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