# SDR AALA202112276617

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 2021
- Submitted: December 27, 2021
- Operation: Air carrier
- Aircraft: [N917NN](https://openairdocs.org/aircraft/N917NN), registered now
- Make and model: Boeing 737*
- Aircraft serial: 29572
- Aircraft time: 26,635 hours, 11,025 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Autopilot Sys
- Condition: None
- Location: Zone 200 - Fuse
- Stage of operation: UK
- 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/AALA202112276617

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: AUTOPILOT WENT INTO UNCOMMANDED DECENT IN ICING CONDITION. ACCOMPLISHED SUCCESSFUL LAND VERIFY TEST PER AMM 22-11-00.

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