# SDR 2011F00170

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2011
- Submitted: August 8, 2011
- Operation: Air carrier
- Aircraft: [N146SL](https://openairdocs.org/aircraft/N146SL), registered now
- Make and model: Piagio P180
- Aircraft serial: 1091
- Aircraft time: 7,525 hours, 5,669 cycles
- System (JASC): [6123 · Propeller Feathering/Reversing](https://openairdocs.org/jasc/6123)
- Part: Switch
- Condition: Out Of Adjust
- Location: Feathering
- Stage of operation: AP
- How discovered: O
- Nature of condition: R
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2011F00170

## Discrepancy

ON FINAL APPROACH, AT APPROX 500 AGL, THE LT ENGINE ATTEMPTED TO GO INTO UNCOMMANDED REVERSE WITH AUTOFEATHER SWITCH ARMED.  CAM SWITCHES WERE ADJUSTED , CHECKED GOOD ON MX VERIFICATION FLIGHT .

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